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Skyworks Solutions Inc patents


Recent patent applications related to Skyworks Solutions Inc. Skyworks Solutions Inc is listed as an Agent/Assignee. Note: Skyworks Solutions Inc may have other listings under different names/spellings. We're not affiliated with Skyworks Solutions Inc, we're just tracking patents.

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 new patent  Methods related to implementing surface mount devices with ground paths

Disclosed are apparatus and methods related to ground paths implemented with surface mount devices to facilitate shielding of radio-frequency (rf) modules. In some embodiments, a method for fabricating a radio-frequency module includes providing a packaging substrate, the packaging substrate configured to receive a plurality of components and the packaging substrate including a ground plane. ... Skyworks Solutions Inc

 new patent  Circuits and methods for biasing switch body

Described herein are circuits and methods for improving switch performance when overdriving the gate by adding a delay on a pmos gate voltage such that it can turn on the pmos during switch state transition to allow charge/discharge of the switch body voltage faster and it can turn off once the process is complete. For example, back-to-back diodes can be used to separate the pmos gate and drain. ... Skyworks Solutions Inc

 new patent  Apparatus and methods for low noise amplifiers

Apparatus and methods for low noise amplifiers (lnas) are provided herein. In certain configurations, an lna includes a gain stage and a bypass stage electrically connected in parallel with one another between an input and an output. ... Skyworks Solutions Inc

 new patent  Doherty power amplifier combiner with tunable impedance termination circuit

Doherty power amplifier combiner with tunable impedance termination circuit. A signal combiner can include a balun transformer circuit having a first coil and a second coil. ... Skyworks Solutions Inc

 new patent  Devices and methods related to radio-frequency switches having improved on-resistance performance

Devices and methods related to radio-frequency (rf) switches having improved on-resistance performance. In some embodiments, a switching device can include a first terminal and a second terminal, and a plurality of switching elements connected in series to form a stack between the first terminal and the second terminal. ... Skyworks Solutions Inc

Reducing impedance discontinuities on a shared medium

Systems and methods are provided for reducing the effects of an impedance mismatch between a communications system and a shared communications medium. A communication system, such as a transceiver within a cable modem, switches between various operating modes including a transmit mode, a receive mode, and a standby mode. ... Skyworks Solutions Inc

Architectures and methods related to transmit signal routing with re-use of filters

Disclosed herein are systems, circuits, architectures and methods related to front-end architectures for wireless devices configured for uplink carrier aggregation. The disclosed front-end architectures include a first power amplifier module with filters and a second filter-less power amplifier module. ... Skyworks Solutions Inc

Method and apparatus for configurable control of an electronic device

Methods and apparatuses are provided for establishing operational states of a device having a plurality of functional operating units. An input is configured to receive an identifier of a desired operational state of the device. ... Skyworks Solutions Inc

Acoustic wave filter including two types of acoustic wave resonators

Aspects of this disclosure relate to a multiplexer, such as a duplexer, a quadplexer, a hexaplexer, or the like. The multiplexer includes acoustic wave filters coupled to a common node. ... Skyworks Solutions Inc

Acoustic wave filter including surface acoustic wave resonators and bulk acoustic wave resonator

Aspects of this disclosure relate to a multiplexer, such as a duplexer, a quadplexer, a hexaplexer, or the like. The multiplexer includes acoustic wave filters coupled to a common node. ... Skyworks Solutions Inc

Wide dynamic range amplifier system

Amplifier systems and methods are provided that include a fixed gain amplification stage coupled to an adjustable attenuation stage further coupled to a variable gain amplification stage. A controller controls an amount of attenuation provided by the adjustable attenuation stage and an amount of gain provided by the variable gain amplification stage to maintain any of various noise, efficiency, and/or linearity requirements of the amplifier system.. ... Skyworks Solutions Inc

Transient output suppression in an amplifier

Systems and methods for suppressing transient outputs from an amplifier system are provided. An amplifier having a plurality of bias levels may be controlled to initiate a change in the level of a bias signal provided to the amplifier. ... Skyworks Solutions Inc

Amplifier system with digital switched attenuator

A broadband amplifier assembly is provided that includes a fixed gain amplifier coupled to an adjustable attenuator which is further coupled to a power amplifier. The adjustable attenuator includes a plurality of attenuation cells directly coupled in series between the input and the output of the adjustable attenuator.. ... Skyworks Solutions Inc

Cascode power amplifier stage using hbt and fet

A power amplifier comprising a bipolar transistor connected in cascode with a field effect transistor (fet) such as a pseudomorphic high electron mobility transistor (phemt) device. The bipolar transistor has a common emitter and the fet a common gate. ... Skyworks Solutions Inc

05/17/18 / #20180138872

Impedance transformation circuit for amplifier

Aspects of this disclosure relate to an impedance transformation circuit for use in an amplifier, such as a low noise amplifier. The impedance transformation circuit includes a matching circuit including a first inductor. ... Skyworks Solutions Inc

05/17/18 / #20180138866

Temperature compensated oscillator

Methods and systems are provided for generating an oscillating signal for use as a clock in digital logic timing. The oscillating signal is generated via a differential rc relaxation oscillator including an oscillator core and biasing circuitry. ... Skyworks Solutions Inc

05/17/18 / #20180138862

Envelope tracking for high power amplifiers

Disclosed herein are circuits, devices and methods that address challenges associated with power amplifier systems. A power amplifier system includes two or more fast error amplifiers coupled to corresponding power amplifiers. ... Skyworks Solutions Inc

05/17/18 / #20180138861

Dynamic error vector magnitude duty cycle correction

Aspects of this disclosure relate to dynamic error vector magnitude (devm) compensation. In one embodiment, an apparatus includes an amplifier, a low pass filter, and a bias circuit. ... Skyworks Solutions Inc

05/17/18 / #20180138574

Reducing coupling coefficient variation using intended width mismatch

A coupler is presented that has high-directivity and low coupling coefficient variation. The coupler includes a first trace with a first edge substantially parallel to a second edge and substantially equal in length to the second edge. ... Skyworks Solutions Inc

05/10/18 / #20180131501

Switched-filter duplexing architecture for front-end systems

Switched-filter duplexing architecture for front-end systems. In some embodiments, a wireless architecture can include a first system having a first signal routing circuit for a first transceiver, and a first antenna node, and be configured to be capable of simultaneous transmit and receive operations for a first band and a receive operation for a second band through the first antenna node. ... Skyworks Solutions Inc

05/10/18 / #20180131500

Front-end architectures for wireless applications

Front-end architectures for wireless applications. A front-end system can include a first assembly of filters having a first transmit filter and configured to provide a duplexing functionality in which a first transmit signal is filtered by the first transmit filter when in a first frequency-division duplexing mode, and a second assembly of filters having a second transmit filter and configured to provide a duplexing functionality in which a second transmit signal is filtered by the second transmit filter when in a second frequency-division duplexing mode. ... Skyworks Solutions Inc

05/10/18 / #20180131369

Manifolded gate resistance network

A radio-frequency switch includes a pole node, a throw node connected to the pole node via a radio-frequency signal path, the radio-frequency signal path including first, second, third and fourth field-effect transistors connected in series, each of the first, second, third and fourth field-effect transistors having a gate, a first coupling path coupling the gate of the first field-effect transistor to the gate of the second field-effect transistor, a second coupling path coupling the gate of the third field-effect transistor to the gate of the fourth field-effect transistor, and a third coupling path coupling the first coupling path to the second coupling path. . ... Skyworks Solutions Inc

05/10/18 / #20180131344

Filter modules and filter arrays having inductive impedance

Aspects and examples reduce the insertion loss and the noise figure of a filter module, which is configured by capacitive elements such as surface acoustic wave resonators and impedance matched. In one example, the filter module includes a filter having a certain passband and a matching resonator for impedance matching of the filter, the passband of the filter being included in a frequency band ranging between a resonant frequency and an antiresonant frequency of the matching resonator, and a center frequency of the passband of the filter being lower than a center frequency of the band ranging between the resonant frequency and the antiresonant frequency of the matching resonator.. ... Skyworks Solutions Inc

05/10/18 / #20180131339

High-linearity variable gain amplifier with bypass path

Aspects and examples described herein provide a variable gain amplifier circuit and assembly. In one example, a variable gain amplifier circuit includes a signal input, a signal output, and a variable gain amplifier including a plurality of unit cell groups coupled between the signal input and the signal output, the variable gain amplifier configured to provide an adjustable gain to a signal received at the signal input during each of a plurality of amplify modes of the variable gain amplifier, each of the plurality of amplify modes corresponding to at least one unit cell group of the plurality of unit cell groups. ... Skyworks Solutions Inc

05/10/18 / #20180131278

Voltage converter having light-load control

Voltage converter having light-load control. In some embodiments, a voltage converter can be configured to receive an input voltage and generate a regulated voltage. ... Skyworks Solutions Inc

05/10/18 / #20180131274

Control circuits and methods for voltage converters

Control circuits and methods for voltage converters. In some embodiments, a voltage converter can include a voltage conversion circuit configured to convert a first voltage to a second voltage, and capable of operating in a continuous mode or a discontinuous mode. ... Skyworks Solutions Inc

05/10/18 / #20180131068

Ceramic materials, devices, and methods for microwave applications

Ceramic materials, devices, and methods for microwave applications. In some embodiments, a composition can include a material with a formula ba4+xsm(2/3)(14−x+0.5y)ti18−yalyo54, with the quantity y being in a range 0<y<2, and the quantity x being in a range 0<x<2−y. ... Skyworks Solutions Inc

05/10/18 / #20180131065

Radiofrequency and other electronic devices formed from enhanced resonant frequency hexaferrite materials

Radiofrequency and other electronic devices can be formed from textured hexaferrite materials, such as z-phase barium cobalt ferrite ba3co2fe24o41 (co2z) having enhanced resonant frequency. The textured hexaferrite material can be formed by sintering fine grain hexaferrite powder at a lower temperature than conventional firing temperatures to inhibit reduction of iron. ... Skyworks Solutions Inc

05/10/18 / #20180130876

Integrated rf front end system

Systems and methods are disclosed for integrating functional components of front-end modules for wireless radios. Front-end modules disclosed may be dual-band front-end modules for use in 802.11ac-compliant devices. ... Skyworks Solutions Inc

05/10/18 / #20180130585

Apparatus and methods related to ferrite based circulators

Apparatus and methods related to ferrite based circulators are disclosed. A ferrite disk used in a circulator can be configured to reduce intermodulation distortion when routing radio-frequency signals having closely spaced frequencies. ... Skyworks Solutions Inc

05/03/18 / #20180124884

Boost regulators with dynamic regulation band

Apparatus and methods for boost regulators with dynamic regulation band are disclosed. In certain configurations, a boost regulator system includes a boost regulator, a current source, and a light emitting element, such as a flash led, that is controlled using a current generated by the current source. ... Skyworks Solutions Inc

05/03/18 / #20180123624

Power detectors for radio-frequency applications

Power detectors for radio-frequency applications. In some embodiments, an amplifier can include an amplification stage having an input and an output, and a detector coupled to the output of the amplification stage and configured to generate an input signal representative of power associated with an amplified signal provided by the amplification stage. ... Skyworks Solutions Inc

05/03/18 / #20180123518

Multi-mode power amplifiers with phase matching

Apparatus and methods for multi-mode power amplifiers are provided herein. In certain configurations, a wireless device includes a multi-mode power amplifier including a plurality of amplification paths electrically connected in parallel with one another. ... Skyworks Solutions Inc

05/03/18 / #20180120881

Programmable low dropout regulators with fast transient response when programming output voltage

Apparatus and methods for programmable low dropout (ldo) regulators for radio frequency (rf) electronics are provided herein. In certain configurations, an ldo regulator for generating a programmable output voltage includes a regulation field-effect transistor (fet) having a drain electrically connected to the ldo regulator's output, an error amplifier that controls a gate of the regulation fet, a feedback circuit that provides a feedback signal to an inverting input of the error amplifier, an output capacitor electrically connected to the ldo regulator's output, and an alternative discharge circuit. ... Skyworks Solutions Inc

05/03/18 / #20180118627

Ultra-high dielectric constant garnet

Disclosed are embodiments of synthetic garnet materials for use in radiofrequency applications. In some embodiments, increased amounts of bismuth can be added into specific sites in the crystal structure of the synthetic garnet in order to boost certain properties, such as the dielectric constant and magnetization. ... Skyworks Solutions Inc

04/19/18 / #20180109238

Surface acoustic wave elements with varying electrode finger pitch and connection arrangements

A saw element configured to suppress spurious emissions resulting from non-periodicity of an idt electrode finger arrangement. In one example, the saw element is a resonator comprising an idt electrode including a first plurality of idt electrode fingers connected to a first busbar and a second plurality of idt electrode fingers connected to a second busbar, and reflectors having a plurality of reflector fingers. ... Skyworks Solutions Inc

04/19/18 / #20180108988

Switch linearization by compensation of a field-effect transistor

A radio-frequency switch is disclosed, comprising a set of field-effect transistors disposed between a first node and a second node. In some embodiments, each field-effect transistor of the set of field-effect transistors has a respective source, drain, gate, and body. ... Skyworks Solutions Inc

04/19/18 / #20180108620

Cavity formation in backside interface layer for radio-frequency isolation

A semiconductor device includes a transistor device implemented over an oxide layer, an interface layer applied below at least a portion of the oxide layer, the interface layer having a trench formed therein, and a substrate layer covering at least a portion of the interface layer and the trench to form a cavity.. . ... Skyworks Solutions Inc

04/12/18 / #20180102753

Coupled resonator on-die filters for wifi applications

A radio frequency (rf) filter circuit for rejecting one or more spurious components of an input signal has a first resonator circuit including a first capacitor and a first coupled inductor pair of a first inductor and a second inductor, and a second resonator circuit with a second capacitor and a second coupled inductor pair of a third inductor and a fourth inductor. First and second resonator coupling capacitors are connected to the first resonator circuit and the second resonator circuit. ... Skyworks Solutions Inc

04/12/18 / #20180102581

Coupler circuit

Aspects of this disclosure relate to a coupler circuit configured to receive an output of a radio frequency coupler. The coupler circuit can be arranged in a daisy chain with other coupler circuits. ... Skyworks Solutions Inc

04/05/18 / #20180097533

Aggregate signal amplification device and method

A surface acoustic wave (saw) filter that receives an aggregate circuit and outputs two or more sub-signals on outputs each of a different frequency band. The sub-signals are amplified by low noise amplifiers and, in one implementation, the amplified sub-signals can be summed. ... Skyworks Solutions Inc

04/05/18 / #20180097505

Stacked ceramic resonator radio frequency filter for wireless communications

A ceramic resonator radio frequency filter includes a printed circuit board, one or more first coaxial resonators disposed on the printed circuit board, and one or more second coaxial resonators disposed over the one or more first coaxial resonators so that the one or more first coaxial resonators and one or more second coaxial resonators are arranged in a stacked configuration. The one or more first coaxial resonators and second coaxial resonators electrically connected to the printed circuit board.. ... Skyworks Solutions Inc

04/05/18 / #20180097483

Thermally rugged power amplifiers and related methods

Thermally rugged power amplifiers and related methods. In some embodiments, a method for manufacturing a radio-frequency amplifier can include providing or forming a semiconductor substrate, and forming an array of cascoded devices on the semiconductor substrate to be capable of amplifying a signal, such that the array of cascoded devices includes a plurality of cascoded devices arranged in a first row and a plurality of cascoded devices arranged in a second row. ... Skyworks Solutions Inc

04/05/18 / #20180097482

High-linearity cmos wifi rf power amplifiers in wide range of burst signals

An rf power amplifier biasing circuit has a start ramp signal input, a main current source input, an auxiliary current source input, and a circuit output. A ramp-up capacitor is connected to the auxiliary current source input. ... Skyworks Solutions Inc

04/05/18 / #20180096951

Circuits and methods related to radio-frequency devices with overmold structure

A method for manufacturing packaged radio-frequency devices is disclosed, including providing a packaging substrate configured to receive a plurality of components, the packaging substrate including a first side and a second side. The method further includes forming a shielded package on the first side of the packaging substrate, the shielded package including a first circuit and a first overmold structure, the shielded package configured to provide radio-frequency shielding for at least a portion of the first circuit. ... Skyworks Solutions Inc

04/05/18 / #20180096950

Radio-frequency device with dual-sided overmold structure

A method for manufacturing packaged radio-frequency devices is disclosed, including providing a packaging substrate configured to receive a plurality of components, the packaging substrate including a first side and a second side. The method includes forming a shielded package on the first side of the packaging substrate, the shielded package including a first circuit and a first overmold structure, the shielded package configured to provide rf shielding for at least a portion of the first circuit. ... Skyworks Solutions Inc

04/05/18 / #20180096949

Dual-sided radio-frequency package with overmold structure

A packaged radio-frequency device is disclosed, including a packaging substrate configured to receive one or more components, the packaging substrate including a first side and a second side. A shielded package may be implemented on the first side of the packaging substrate, the shielded package including a first circuit and a first overmold structure, the shielded package configured to provide radio-frequency shielding for at least a portion of the first circuit. ... Skyworks Solutions Inc

03/29/18 / #20180091136

Main-auxiliary field-effect transistor structures for radio frequency applications

Disclosed herein are switching or other active fet configurations that implement a main-auxiliary branch design. Such designs include a circuit assembly for performing a switching function that includes a branch including a main path in parallel with an auxiliary path. ... Skyworks Solutions Inc

03/29/18 / #20180091135

Series main-auxiliary field-effect transistor configurations for radio frequency applications

Disclosed herein are switching or other active fet configurations that implement a main-auxiliary branch design. Such designs include a circuit assembly for performing a switching function that includes a branch including a main path in series with an auxiliary path. ... Skyworks Solutions Inc

03/29/18 / #20180091134

Parallel main-auxiliary field-effect transistor configurations for radio frequency applications

Disclosed herein are switching or other active fet configurations that implement a main-auxiliary branch design. Such designs include a circuit assembly for performing a switching function that includes a branch including a main path in parallel with an auxiliary path. ... Skyworks Solutions Inc

03/29/18 / #20180091133

Hybrid main-auxiliary field-effect transistor configurations for radio frequency applications

Disclosed herein are switching or other active fet configurations that implement a main-auxiliary branch design. Such designs include a circuit assembly for performing a switching function that includes a branch including a main path in parallel with a first auxiliary path and the main path in series with a second auxiliary path. ... Skyworks Solutions Inc

03/29/18 / #20180091132

Stacked auxiliary field-effect transistors with buffers for radio frequency applications

Disclosed herein are switching or other active fet configurations that implement a main-auxiliary branch design. Such designs include a circuit assembly for performing a switching function that includes a branch including a main path in parallel with an auxiliary path, both the main path and the auxiliary path having a plurality of field-effect transistors. ... Skyworks Solutions Inc

03/29/18 / #20180091131

Stacked auxiliary field-effect transistor configurations for radio frequency applications

Disclosed herein are switching or other active fet configurations that implement a main-auxiliary branch design. Such designs include a circuit assembly for performing a switching function that includes a branch including a main path in parallel with an auxiliary path, both the main path and the auxiliary path having a plurality of field-effect transistors. ... Skyworks Solutions Inc

03/29/18 / #20180091114

Quasi-differential rf power amplifier with high level of harmonics rejection

A quasi-differential amplifier with an input port and an output port. The amplifier has a phase shifter network with a first port connected to the input port, a second port, and a third port. ... Skyworks Solutions Inc

03/29/18 / #20180086673

Temperature compensated dielectric material

Disclosed are embodiments of tungsten bronze crystal structures that can have both a high dielectric constant and low temperature coefficient, making them advantageous for applications that experience temperature changes and gradients. In particular, tantalum can be substituted into the crystal structure to improve properties. ... Skyworks Solutions Inc

03/29/18 / #20180086672

Enhanced fracture toughness thermal barrier coating material

Disclosed are embodiments of a multi-phase ceramic material which can have advantageous properties as a thermal barrier coating. In particular, embodiments of the ceramic can have high fracture toughness as well as calcium, magnesium, and aluminum silicate corrosion resistance. ... Skyworks Solutions Inc

03/15/18 / #20180076834

Switchable impedance phase shifter for switched multiplexing applications

Described herein are systems configured for inter-band carrier aggregation. Systems include a multiplexing circuit having a switching network and diplexers wherein the switching network is configured to share inductors between multiple paths of the multiplexing circuit. ... Skyworks Solutions Inc

03/15/18 / #20180076791

Radio-frequency isolation using cavity formed in interface layer

A method for fabricating a semiconductor device involves providing a transistor device, forming one or more electrical connections to the transistor device, forming one or more dielectric layers over at least a portion of the electrical connections, applying an interface material over at least a portion of the one or more dielectric layers, removing at least a portion of the interface material to form a trench, and covering at least a portion of the interface material and the trench with a substrate layer to form a cavity.. . ... Skyworks Solutions Inc

03/15/18 / #20180076774

Radio-frequency amplifier having active gain bypass circuit

Radio-frequency (rf) amplifier having active gain bypass circuit. In some embodiments, an amplifier can include a first amplification path implemented to amplify a signal, and having a cascode arrangement of a first input transistor and a cascode transistor to provide a first gain for the signal when in a first mode. ... Skyworks Solutions Inc

03/15/18 / #20180076772

Apparatus and methods for envelope tracking systems with automatic mode selection

Apparatus and methods for envelope tracking systems with automatic mode selection are provided herein. In certain configurations, a power amplifier system includes a power amplifier that amplifies a radio frequency signal and that receives power from a power amplifier supply voltage. ... Skyworks Solutions Inc

03/15/18 / #20180076770

Power amplifier systems with differential ground

Apparatus and methods for power amplifier systems with differential ground are provided. In certain implementations, a semiconductor die for a radio frequency communication system includes a differential ground network configured to distribute a ground voltage. ... Skyworks Solutions Inc

03/15/18 / #20180076222

Cavity formation using sacrificial material

A method for fabricating a semiconductor device involves providing a semiconductor substrate, forming an oxide layer in the semiconductor substrate, forming a transistor device over the oxide layer, removing at least part of a backside of the semiconductor substrate, applying a sacrificial material below the oxide layer, covering the sacrificial material with an interface material, and removing at least a portion of the sacrificial material to form a cavity at least partially covered by the interface layer.. . ... Skyworks Solutions Inc

03/15/18 / #20180076148

Through-mold features for shielding applications

Through-mold features for shielding applications. In some embodiments, a packaged module can include a packaging substrate having a ground plane, and one or more contact pads implemented on an upper side and electrically connected to the ground plane. ... Skyworks Solutions Inc

03/08/18 / #20180069511

Cascade amplifier linearization in a radio frequency system

A linearization circuit reduces intermodulation distortion in an amplifier that includes a first stage and a second stage. The linearization circuit receives a first signal that includes a first frequency and a second frequency and generates a difference signal having a frequency approximately equal to the difference of the first frequency and the second frequency, generates an envelope signal based at least in part on a power level of the first signal, and adjusts a magnitude of the difference signal based on the envelope signal. ... Skyworks Solutions Inc

03/08/18 / #20180069324

Planar end fire antenna for wideband low form factor applications

An end-fire antenna for wideband low form factor applications includes a first metal layer, a second metal layer, and a dielectric layer disposed between the first and second metal layers. An open cavity formed in the dielectric layer that is filled with air, the cavity defined by a pair of sidewalls that extend from an aperture of the cavity to a rear wall of the cavity, where the depth of the aperture is defined between the aperture and the rear wall. ... Skyworks Solutions Inc

03/08/18 / #20180069314

Antenna for radio-frequency electronics

An antenna for radio-frequency electronics can include an end-fire antenna and a planar antenna spaced from the end-fire antenna for diversity of direction and antenna coverage. The end-fire antenna can be for wideband low form factor applications and have a first metal layer, a second metal layer, and a dielectric layer between the first and second metal layers. ... Skyworks Solutions Inc

03/01/18 / #20180063031

Multi-standard radio switchable multiplexer

Described herein are systems, devices, and methods for a multi-standard radio switchable multiplexer that is configured to process wireless local area network (wlan) signals and cellular signals in the same module. A front end module can be configured to support concurrent operation of wlan signals and cellular signals using switching networks as described herein. ... Skyworks Solutions Inc

03/01/18 / #20180062690

Multi-input amplifier with degeneration switching block and low loss bypass function

Described herein are variable gain amplifiers that selectively provide variable or tailored impedances at a degeneration block and/or feedback block depending at least in part on a gain mode of the variable gain amplifier. This advantageously reduces or eliminates performance penalties in one or more gain modes. ... Skyworks Solutions Inc

03/01/18 / #20180062682

Filtering architectures and methods for wireless applications

Filtering architectures and methods for wireless applications. In some embodiments, a wireless architecture can include a pre-amplifier filter configured to filter a signal, and an amplifier assembly configured to amplify the filtered signal. ... Skyworks Solutions Inc

03/01/18 / #20180062622

Binary-weighted attenuator having compensation circuit

Binary-weighted attenuator having compensation circuit. In some embodiments, a radio-frequency (rf) attenuator circuit can include a plurality of attenuation blocks arranged in series between an input node and an output node, with each of the plurality of attenuation blocks including a bypass path. ... Skyworks Solutions Inc

03/01/18 / #20180062621

Attenuators having phase shift and gain compensation circuits

Attenuators having phase shift and gain compensation circuits. In some embodiments, a radio-frequency (rf) attenuator circuit can include one or more attenuation blocks arranged in series between an input node and an output node, with each attenuation block including a local bypass path. ... Skyworks Solutions Inc

03/01/18 / #20180062601

Amplifier with improved return loss and mismatch over gain modes

Disclosed herein are signal amplifiers that have an input impedance that varies over different bias currents. The signal amplifier includes a gain stage with a plurality of switchable amplification branches that are each capable of being activated such that one or more of the activated amplification branches provides a targeted adjustment to the input impedance. ... Skyworks Solutions Inc

03/01/18 / #20180062600

Multi-input amplifier with programmable embedded attenuators

Described herein are variable gain amplifiers and multiplexers that embed programmable attenuators into switchable paths that allow signals in a high gain mode to bypass attenuation. This advantageously reduces or eliminates performance penalties in the high gain mode. ... Skyworks Solutions Inc

03/01/18 / #20180062599

Low-noise amplifier having programmable-phase gain stage

Low-noise amplifier having programmable-phase gain stage. In some embodiments, a radio-frequency amplifier can include an input node, an output node, and a programmable-phase gain stage implemented between the input node and the output node. ... Skyworks Solutions Inc

03/01/18 / #20180062598

Multi-input amplifier with improved return loss and mismatch over gain modes

A signal amplifier having an input impedance that varies over different bias currents, the signal amplifier comprising a compensation stage including a switchable variable resistance configured to provide a targeted adjustment to the input impedance. A signal amplifier comprising: a variable-gain stage configured to provide a plurality of gain levels that result in different input impedance values; and a compensation stage having a switchable variable resistance configured to provide a targeted adjustment to a respective input impedance. ... Skyworks Solutions Inc

03/01/18 / #20180062585

Devices and methods related to embedded sensors for dynamic error vector magnitude corrections

Devices and methods related to embedded sensors for dynamic error vector magnitude corrections. In some embodiments, a power amplifier (pa) can include a pa die and an amplification stage implemented on the pa die. ... Skyworks Solutions Inc

03/01/18 / #20180062582

Low-noise amplifier having inter-stage filter

Low-noise amplifier having inter-stage filter. In some embodiments, an amplifier assembly for amplifying a signal can include an input amplification stage and an output amplification stage. ... Skyworks Solutions Inc

03/01/18 / #20180062580

Output power cell for cascode amplifiers

A cascode power cell for a power amplifier circuit includes a radio frequency signal input node, a radio frequency signal output node, and a plurality of sub-cells each including a first transistor having a collector coupled to the radio frequency signal output node, each of the plurality of sub-cells further including a second transistor having a collector coupled to an emitter of the first transistor at a connection node, and a base coupled to the radio frequency signal input node, the connection nodes for each of the plurality of sub-cells being electrically isolated from one another.. . ... Skyworks Solutions Inc

03/01/18 / #20180062321

Methods and apparatus for adaptive grounding and noise mitigation in mixed-signal devices

Methods and apparatus for providing adaptive grounding in mixed-signal electronic dies, circuits, modules, or other devices. In one example a module in which adaptive grounding is implemented includes a substrate having disposed thereon a plurality of signal contacts and a ground connection, and a mixed-signal die disposed on the substrate and including a signal section and a control section, the signal section having a plurality of radio frequency components each connected to a respective one of the plurality of signal contacts on the substrate by a corresponding signal connector, and the control section having at least two ground paths that selectively connect the control section to the ground connection on the substrate and which are physically spaced apart from one another, the mixed-signal die further including at least two switches, each operable to selectively connect one of the ground paths to the ground connection.. ... Skyworks Solutions Inc

03/01/18 / #20180062231

Low-noise amplifier with low-loss bypass mode

Aspect and examples described herein provide radio-frequency amplifier circuits and methods. In one example, an amplifier circuit comprises a bypass circuit selectively coupled between an input and an output via at least one bypass switch, the at least one bypass switch configured to couple the input and the output through the bypass circuit during a bypass mode of operation, a low-noise amplifier circuit coupled between the input and the output and including a transistor, the transistor configured to couple the input and the output through the low-noise amplifier circuit during a low-noise amplifier mode of operation, a direct-current switch coupled to the bypass circuit and the low-noise amplifier circuit and configured to select between the bypass mode and the low-noise amplifier mode, and an inductor interposed between the input and the direct-current switch, the inductor being coupled to electrical ground via the direct-current switch during the low-noise amplifier mode.. ... Skyworks Solutions Inc

03/01/18 / #20180061651

Methods of measuring electrical characteristics during plasma etching

Wafers processed by methods of plasma etching are disclosed. In one embodiment, a wafer is prepared by a process including positioning the wafer within a chamber of a plasma etcher, generating plasma ions using a radio frequency power source and a plasma source gas, directing the plasma ions toward the wafer using an electric field, focusing the plasma ions using a plasma focusing ring to increase a flux of plasma ions arriving at a surface of the wafer, and etching a plurality of through-wafer vias in the wafer.. ... Skyworks Solutions Inc

03/01/18 / #20180061507

Fuse state sensing circuits, devices and methods

Fuse state sensing circuits, devices and methods. In some embodiments, a fuse state sensing circuit can include an enable block configured to enable a flow of a fuse current resulting from a supply voltage to a fuse element upon receipt of an enable signal substantially at the same time as when the supply voltage is applied. ... Skyworks Solutions Inc

03/01/18 / #20180057410

Composite hexagonal ferrite materials

Disclosed herein are embodiments of composite hexagonal ferrite materials formed from a combination of y phase and z phase hexagonal ferrite materials. Advantageously, embodiments of the material can have a high resonant frequency as well as a high permeability. ... Skyworks Solutions Inc

02/22/18 / #20180054178

Digital switched attenuator

An attenuation cell is provided for use in a switched attenuator. The attenuation cell includes an attenuation path that has an input, a first switch, a resistive network, a second switch, and an output. ... Skyworks Solutions Inc

02/22/18 / #20180054172

Devices and methods related to adjusting power provided to power amplifiers

Devices and methods related to adjusting power provided to power amplifiers. In some embodiments, a power amplifier (pa) module may include a pa circuit configured to receive a radio-frequency (rf) signal, the pa circuit coupled to a power source. ... Skyworks Solutions Inc

02/22/18 / #20180054171

Apparatus and methods for low noise amplifiers with mid-node impedance networks

Apparatus and methods for lnas with mid-node impedance networks are provided herein. In certain configurations, an lna includes an input, an output, a transconductance device, a cascode device, and a mid-node impedance network. ... Skyworks Solutions Inc

02/22/18 / #20180054169

Amplifier biasing circuits and method

Circuits and methods for adjusting one or more operation parameters of a semiconductor device. One example of a circuit includes a first semiconductor device, a beta sensing circuit coupled to the first semiconductor device and configured to measure a current gain of the first semiconductor device and generate a first control signal based on a value of the current gain of the first semiconductor device, and a reference control circuit coupled to the beta sensing circuit and configured to receive the first control signal and adjust an operation parameter of the first semiconductor device based on the value of the current gain of the first semiconductor device.. ... Skyworks Solutions Inc

02/22/18 / #20180054166

Apparatus and methods for biasing low noise amplifiers

Apparatus and methods for biasing low noise amplifiers are provided herein. In certain configurations, a low noise amplifier (lna) includes an input, an output, a transconductance device, a cascode device, a bias current source, and a feedback bias circuit. ... Skyworks Solutions Inc

02/15/18 / #20180048345

Apparatus and methods for filter bypass for radio frequency front-ends

Apparatus and methods for filter bypass for radio frequency front-ends are provided. In certain configurations, filter connectivity of a front-end is changed as a function of automatic gain control (agc) in a receive path. ... Skyworks Solutions Inc

02/15/18 / #20180048305

Radio-frequency switch with switchable capacitor

Radio-frequency switch with switchable capacitor. In some embodiments, a rf switch includes a first field-effect transistor (fet) disposed between an input node and an output node. ... Skyworks Solutions Inc

02/15/18 / #20180048296

Radio-frequency switch without negative voltages

Radio-frequency (rf) switch without negative voltages. In some embodiments, a rf switch includes an input node configured to receive an rf signal. ... Skyworks Solutions Inc

02/15/18 / #20180047715

Stack device having voltage compensation

Stack device having voltage compensation. In some embodiments, a switching device can include switching elements connected in series between a first terminal and a second terminal, with a first end switching element being connected to the first terminal and a second end switching element being connected to the second terminal. ... Skyworks Solutions Inc

02/15/18 / #20180047670

Programmable fuse with single fuse pad and control methods thereof

A fuse circuit that permits a fuse to be selected and programmed using a single fuse pad. The fuse circuit includes a fuse pad to receive a first voltage, a fuse coupled in series with a voltage controlled switch between the fuse pad and a reference node, and a switch control circuit coupled in series between the fuse pad and the reference node and in parallel with the fuse and the voltage controlled switch, the switch control circuit being configured to select and program the fuse responsive to the first voltage received at the fuse pad. ... Skyworks Solutions Inc

02/15/18 / #20180047650

Packaging structures with improved adhesion and strength

According to various aspects and embodiments, a support structure for packaging an electronic device is provided. In one example, a packaged electronic device includes a substrate, at least one electronic device disposed on the substrate, an encapsulation structure disposed on the substrate and having a wall that forms a perimeter around the at least one electronic device, and at least one support structure formed from a photosensitive polymer and disposed adjacent the wall of the encapsulation structure. ... Skyworks Solutions Inc

02/08/18 / #20180041204

Switch with envelope injection

Aspects of this disclosure relate to a switching circuit with enhanced linearity. The switching circuit can include a switch and an envelope generator. ... Skyworks Solutions Inc

02/08/18 / #20180041170

Radio frequency system with switch to receive envelope

Aspects of this disclosure relate to a radio frequency system that includes an envelope generator configured to generate an envelope signal corresponding to an envelope of a radio frequency signal and at least two radio frequency components coupled to the envelope generator. One of the radio frequency components is a radio frequency switch configured to pass the radio frequency signal. ... Skyworks Solutions Inc

02/01/18 / #20180035052

Systems and methods for extending operation of radio-frequency power amplifiers

Systems and methods for extending operation of radio-frequency (rf) power amplifiers. In some embodiments, a method for fabricating a wireless device can be implemented. ... Skyworks Solutions Inc

02/01/18 / #20180034661

Multi mode interface and detection circuit

A communication interface circuit includes a plurality of terminals, two receiver circuits, and a detection circuit. The detection circuit is coupled to at least one of the terminals and detects a communication format, and the detection circuit enables one of the two receiver circuits based on the detected communication format.. ... Skyworks Solutions Inc

02/01/18 / #20180034567

Apparatus and methods for testing patch antennas

Apparatus and methods for testing of patch antennas are provided herein. In certain configurations, a method of electronic testing of patch antennas is provided. ... Skyworks Solutions Inc

02/01/18 / #20180034445

Apparatus and methods for digital step attenuation

Apparatus and methods for digital step attenuators are provided herein. In certain configurations, a dsa includes a plurality of dsa stages that can be set in an attenuation mode or in a bypass mode using a plurality of switching circuits. ... Skyworks Solutions Inc

02/01/18 / #20180034424

Methods related to fast turn-on of radio-frequency amplifiers

Circuits, methods and devices are disclosed, related to fast turn-on of radio-frequency amplifiers. In some embodiments, a method for amplifying a radio-frequency signal includes providing an amplification path implemented to amplify an radio-frequency signal, where the amplification path includes a switch and an amplifier. ... Skyworks Solutions Inc

02/01/18 / #20180032065

Flexible planning model for fabrication with high volume and high mixture

Described herein are, among others, systems and methods associated with electrical test planning in a semiconductor manufacturing context. Within an electrical test planning system in the semiconductor industry, various models that allow a better utilization of installed capacity were developed. ... Skyworks Solutions Inc

01/25/18 / #20180026594

Peaking amplifier bias control

A doherty power amplifier includes a carrier amplifier, a peaking amplifier, and a peaking amplifier bias circuit coupled to the peaking amplifier and configured to provide a peaking amplifier bias signal to the peaking amplifier based on a saturation level of the carrier amplifier.. . ... Skyworks Solutions Inc

01/25/18 / #20180026593

Doherty amplifier

A multistage linear power amplifier receiving an input signal. The multistage linear power amplifier comprises a plurality of class-ab amplifiers connected in a cascade configuration. ... Skyworks Solutions Inc

01/25/18 / #20180026592

Impedance transformation circuit and overload protection for low noise amplifier

Aspects of this disclosure relate to an impedance transformation circuit and overload protection for a low noise amplifier. A low noise amplifier can include a first inductor, an amplification circuit configured to amplify a radio frequency signal, and a second inductor magnetically coupled to the first inductor to provide negative feedback to linearize the low noise amplifier. ... Skyworks Solutions Inc

01/18/18 / #20180019772

Parallel use of serial controls in improved wireless devices and power amplifier modules

A power amplifier module can include one or more switches, a coupler module, input signal pins, and a controller having first and second output terminals. The input signal pins can receive a voltage input/output signal, a clock input signal, and a data input signal. ... Skyworks Solutions Inc

01/18/18 / #20180019768

Uplink carrier aggregation front-end architecture that supports simultaneous mimo

Disclosed herein are front-end architectures for wireless communication that support a wide range of combinations of uplink carrier aggregation (ul ca) and simultaneous multiple-input multiple-output (mimo) functionality. Embodiments can include a separate mid-band power amplifier module and a separate high band power amplifier module, and can establish various numbers of antenna outputs from these modules to connect to available diplexers or triplexers in selected ways to cover all intended use cases. ... Skyworks Solutions Inc

01/18/18 / #20180019715

Automatic impedance matching using true power information

Aspects of this disclosure relate to systems and methods of performing dynamic impedance tuning. Certain aspects may be performed by or include a dynamic impedance matching network. ... Skyworks Solutions Inc

01/18/18 / #20180019714

Integrated rf limiter

A limiter circuit is integrated into an rf power amplifier. The limiter circuit automatically starts adding attenuation at the input of the rf power amplifier after a predetermined input power level threshold is exceeded, thereby extending the safe input drive level to protect the amplifier. ... Skyworks Solutions Inc

01/18/18 / #20180019329

Bipolar transistor on high-resistivity substrate

Systems and methods are disclosed for fabricating a semiconductor die that includes one or more bipolar transistors disposed on or above a high-resistivity region of a substrate. The substrate may include, for example, bulk silicon, at least a portion of which has high-resistivity characteristics. ... Skyworks Solutions Inc

01/18/18 / #20180019261

Voltage distribution in transistor stacks using non-uniform transistor dimensions

A radio-frequency switch includes a first field-effect transistor having drain and source fingers separated by a first drain-to-source distance and a second field-effect transistor in a series connection with the first field-effect transistor, the second field-effect transistor having drain and source fingers separated by a second drain-to-source distance that is different than the first drain-to-source distance.. . ... Skyworks Solutions Inc

01/18/18 / #20180019212

Systems and methods for providing electromagnetic interference shielding for integrated circuit modules

An automated system for maintaining paint thickness uniformity over the surface of a cap encapsulating at least one integrated circuit (ic) module on a panel of ic modules is provided. The system can be computer implemented and applies a layer of conductive paint that electrically couples with wirebonds on the panel to form at least part of an electromagnetic interference (emi) or radio frequency interference (rfi) shield that attenuates emi or rfi during operation of the ic module. ... Skyworks Solutions Inc

01/18/18 / #20180017618

Apparatus and methods for testing electronic devices

Apparatus and methods for testing electronic devices. In some embodiments, a fixture for testing an electronic device can include a support frame including a base and a pair of side supports implemented on respective sides of the base, with at least one of the side supports including a plurality of features for mounting of a test hardware, and the base being configured to support a first test board. ... Skyworks Solutions Inc

01/18/18 / #20180016155

Temperature insensitive dielectric constant garnets

Embodiments of synthetic garnet materials having advantageous properties, especially for below resonance frequency applications, are disclosed herein. In particular, embodiments of the synthetic garnet materials can have high curie temperatures and dielectric constants while maintaining low magnetization. ... Skyworks Solutions Inc

01/11/18 / #20180013420

Forward isolation in radio-frequency switches using internal regulator

A radio-frequency switch includes a series field-effect transistor, a shunt field-effect transistor having a gate node, and shunt arm control circuitry configured to receive an internal regulator voltage and provide the internal regulator voltage to the gate node of the shunt field-effect transistor when the radio-frequency switch is in a stand-by mode of operation.. . ... Skyworks Solutions Inc

01/11/18 / #20180012978

Methods for forming bipolar transistors having collector with grading

This disclosure relates to methods for forming bipolar transistors, such as heterojunction bipolar transistors, having at least one grading in the collector. In some embodiments, the methods include forming a sub-collector. ... Skyworks Solutions Inc

01/04/18 / #20180006626

Impedance matching circuit for radio-frequency amplifier

Impedance matching circuit for radio-frequency amplifier. In some embodiments, an impedance matching circuit can include a primary metal trace having a first end configured to be capable of being coupled to a voltage source for the power amplifier, and a second end configured to be capable of being coupled to an output of the power amplifier. ... Skyworks Solutions Inc

01/04/18 / #20180006618

Active cross-band isolation for a transformer-based power amplifier

Embodiments of radio frequency (rf) systems include a plurality of power amplifiers having a primary winding and a secondary winding. Each of the power amplifiers may be configured to process signals of different frequency bands. ... Skyworks Solutions Inc

01/04/18 / #20180006349

Multiple-pole resonator filter

Multiple-pole resonator filter. In some embodiments, a filter for radio-frequency application can include a first coaxial resonator in a first orientation and having an input on a first side of the filter defined by n coaxial resonators, and an n-th coaxial resonator in the first orientation and having an output on the first side of the filter. ... Skyworks Solutions Inc

01/04/18 / #20180005958

Methods for forming shielded radio-frequency modules having reduced area

Shielded radio-frequency (rf) module having reduced area. In some embodiments, a method for fabricating a radio-frequency module includes forming or providing a packaging substrate configured to receive a plurality of components. ... Skyworks Solutions Inc

12/28/17 / #20170374183

Wireless device with overstress indicator

According to one aspect, embodiments of the invention provide a wireless device comprising an overstress indicator circuit including a sense circuit configured to monitor a parameter of the wireless device and generate a sense signal corresponding to the parameter, a detection circuit configured to receive the sense signal from the sense circuit and generate a detection signal in response to a determination that the sense signal is indicative of an overstress condition in the device, an interface circuit, and a memory circuit coupled to the detection circuit and the interface circuit and configured to store an overstress condition indication for access via the interface circuit in response to receiving the detection signal, at least one power amplifier coupled to the interface circuit, and a transceiver coupled to the at least one power amplifier and configured to produce an rf transmit signal and to receive an rf receive signal.. . ... Skyworks Solutions Inc

12/28/17 / #20170373730

Front-end architectures for multiple antennas

Front-end architectures for multiple antennas. In some embodiments, a front-end architecture for wireless application can include a first mid-band amplifier system configured to amplify transmit and receive signals in a first mid-band. ... Skyworks Solutions Inc

12/28/17 / #20170373368

Electromagnetic coupler arrangements for multi-frequency power detection, and devices including same

A coupling methodology and circuit arrangements to provide multi-frequency simultaneous power measurement. In one example, a wireless device front-end apparatus includes a plurality of antenna swap switches each connected to first and second antenna contacts, and a plurality of electromagnetic couplers each having an input port to receive a input signal of a unique frequency, a coupled port that provides a coupled signal based on the input signal, an output port connected to one of the plurality of antenna swap switches, and an isolation port. ... Skyworks Solutions Inc

12/28/17 / #20170373052

Fabrication of radio-frequency devices with amplifier voltage limiting features

Fabrication of a wireless device involves providing a packaging substrate configured to receive a plurality of components, mounting a radio-frequency module on the packaging substrate, the radio-frequency module including a power amplifier including a bipolar transistor having collector, emitter, base and sub-collector regions, the radio-frequency module further including a conductive via positioned within 35 μm of the sub-collector region in order to clamp a peak voltage of the bipolar transistor at a voltage limit level, and electrically connecting the radio-frequency module to the packaging substrate using a plurality of connectors.. . ... Skyworks Solutions Inc

12/28/17 / #20170372158

Systems and methods for recognition of unreadable characters on printed circuit boards

Systems and methods for recognition of unreadable characters on printed circuit boards. In some embodiments, a method for recognizing characters can be utilized for recognition of damaged characters on a printed circuit board. ... Skyworks Solutions Inc

12/21/17 / #20170365554

Polymer bonding with improved step coverage

A system and method for packaging an electronic device are provided. The packaged electronic device may include a structure material having one portion with a first lateral cross-section, and at least one other portion with a second lateral cross-section, where at least one of a dimension and a shape of the second lateral cross-section is different than in the first lateral cross-section.. ... Skyworks Solutions Inc

12/14/17 / #20170358985

Control circuits and methods for voltage converters

Control circuits and methods for voltage converters. In some embodiments, a control system or circuit can be implemented for a voltage converter, and can include a driving unit configured to generate a driving signal having a pulse width and a frequency. ... Skyworks Solutions Inc

12/14/17 / #20170358667

Methods of forming a bipolar transistor having a collector with a doping spike

This disclosure relates to methods of forming bipolar transistors, such as heterojunction bipolar transistors. The methods may include forming a sub-collector over a substrate, forming a first portion of a collector over the sub-collector and doping a second portion of the collector to form a doping spike. ... Skyworks Solutions Inc

12/07/17 / #20170353211

Isolating noise sources and coupling fields in rf chips

A semiconductor die comprises a first active device, at least one of a second active device and a passive component, and electromagnetic shielding configured to at least partially electromagnetically isolate the first active device from the at least one of the second active device and the passive component. The electromagnetic shielding includes one of a grounded metal layer and via stack, and a grounded metal layer disposed one of above and below the first active device.. ... Skyworks Solutions Inc

12/07/17 / #20170352643

Devices and methods related to singulated radio-frequency devices

Devices and methods for processing singulated radio-frequency (rf) units. In some embodiments, a device for processing singulated rf packages can include a plate having a plurality of apertures. ... Skyworks Solutions Inc

11/30/17 / #20170346516

Contour tuning circuit and related systems and methods

Aspects of this disclosure relate tuning an impedance presented to a common port of a multi-throw switch and a tunable notch filter coupled to the common port. The impedance presented to the common port can be tuned based on an impedance associated with a throw of the multi-throw switch that is activated. ... Skyworks Solutions Inc

11/30/17 / #20170346482

Radio-frequency switch having dynamic gate bias resistance, body contact, and compensation circuit

Radio-frequency (rf) switch circuits having switchable transistor coupling for improved switching performance. An rf switch system includes at least one field-effect transistor (fet) disposed between first and second nodes, each fet having a gate and body. ... Skyworks Solutions Inc

11/30/17 / #20170345676

Wafer level packaging using a transferable structure

According to various aspects and embodiments, a system and method for packaging an electronic device is disclosed. One example of the method comprises depositing a layer of temporary bonding material onto a surface of a first substrate, depositing a layer of structure material onto a surface of the layer of temporary bonding material, masking at least a portion of the structure material to define an unmasked portion and a masked portion of the structure material, exposing the unmasked portion of the structure material to a source of light, removing the masked portion of the structure material, bonding at least a portion of a surface of a second substrate to the unmasked portion of the structure material, and removing the first substrate from the unmasked portion of the structure material.. ... Skyworks Solutions Inc

11/30/17 / #20170341950

High q modified barium magnesium tantalate for high frequency applications

Disclosed are embodiments of a barium magnesium tantalate including additional components to increase the q value of the material. In some embodiments, complex tungsten oxides and/or hexagonal perovskite crystal structures can be added into the barium magnesium tantalate to provide for advantageous properties. ... Skyworks Solutions Inc

11/23/17 / #20170338852

Second order harmonic cancellation for radio frequency front-end switches

A radio frequency switch circuit with improved harmonic suppression and low insertion loss has an antenna port and a plurality of signal ports. A plurality of transistor switch circuits, are connected to a respective one of the plurality of signal ports and to the antenna port. ... Skyworks Solutions Inc

11/23/17 / #20170338847

Systems, devices and methods related to stacked radio-frequency devices

Systems, devices and methods related to stacked band selection switch devices. In some embodiments, an rf module can include a packaging substrate and a power amplifier (pa) assembly implemented on a pa die mounted on the packaging substrate. ... Skyworks Solutions Inc

11/23/17 / #20170338839

Multiplexing architectures for wireless applications

Multiplexing architectures for wireless applications. In some embodiments, a front-end architecture can include a first power amplifier having an output coupled to a transmit filter through a path that is substantially free of a switch. ... Skyworks Solutions Inc

11/23/17 / #20170338781

Power amplification system with reactance compensation

Power amplification system is disclosed. A power amplification system can include a class-e push-pull amplifier including a transformer balun. ... Skyworks Solutions Inc

11/23/17 / #20170338776

Systems, circuits and methods for correcting dynamic error vector magnitude effects

Systems, circuits and methods related to dynamic error vector magnitude (devm) corrections. In some embodiments, a power amplifier (pa) system can include a pa circuit having a plurality of amplification stages, and a bias system in communication with the pa circuit and configured to provide bias signals to the amplification stages. ... Skyworks Solutions Inc

11/23/17 / #20170338773

Power amplification system with envelope-based bias

Disclosed herein are power amplification systems that are dynamically biased based on a signal indicative of an envelope of the signal being amplified. The power amplification systems include a power amplifier configured to amplify an input radio-frequency (rf) signal to generate an output rf signal when biased by a biasing signal. ... Skyworks Solutions Inc

11/23/17 / #20170337317

Racetrack layout for radio frequency isolation structure

Aspects of the present disclosure relate to determining a layout of a racetrack that forms part of an rf isolation structure of a packaged module and the resulting rf isolation structures. Locations of where the racetrack can be adjusted (for example, narrowed) and/or removed without significantly degrading the emi performance of the rf isolation structure can be identified. ... Skyworks Solutions Inc

11/16/17 / #20170331504

Wireless communication device with a low noise receiver

A wireless communication device includes a radio frequency antenna a transceiver. The transceiver includes a receiver having a switching architecture configured to generate a plurality of output phases within a local oscillator period based on the filtered rf signal and a respective plurality of local oscillator signals. ... Skyworks Solutions Inc

11/16/17 / #20170331436

Power amplifier with bias adjustment circuit

Power amplifier with bias adjustment circuit. In some embodiments, a power amplifier can include an amplifying transistor configured to amplify a signal, and a bias circuit coupled to a bias node of the amplifying transistor and configured to provide a bias voltage at the bias node. ... Skyworks Solutions Inc

11/16/17 / #20170331434

Cascode switch for amplifier

Aspects of this disclosure relate to a cascode circuit electrically coupled between an amplifier configured to amplify a radio frequency (rf) signal and different loads. The cascode circuit can function as a switch to selectively provide an output from the amplifier to a number of different loads. ... Skyworks Solutions Inc

11/09/17 / #20170324451

Compensating amplifier phase in a diversity receiver front end

Diversity receiver front end system with amplifier phase compensation. A receiving system can include a first amplifier disposed along a first path, corresponding to a first frequency band, between an input of the receiving system and an output of the receiving system. ... Skyworks Solutions Inc

11/09/17 / #20170324432

Multiple band multiple mode transceiver front end flip-chip architecture and circuitry with integrated power amplifiers

An integrated circuit architecture and circuitry is defined by a die structure with a plurality of exposed conductive pads arranged in a grid of rows and columns. The die structure has a first operating frequency region with a first transmit and receive chain, and a second operating frequency region with a second transmit chain and a second receive chain. ... Skyworks Solutions Inc

11/09/17 / #20170324395

Stacked wafer-level packaging devices

Stacked wafer-level packaging devices. In some embodiments, a wireless device includes a transceiver configured to generate a radio-frequency (rf) signal. ... Skyworks Solutions Inc

11/09/17 / #20170324392

Self-adjusting electromagnetic coupler with automatic frequency detection

Electromagnetic coupler systems including built-in frequency detection, and modules and devices including such. One example of an electromagnetic coupler system include an electromagnetic coupler having an input port, an output port, a coupled port, and an isolation port, the electromagnetic coupler including a main line extending between the input port and the output port, and a coupled line extending between the coupled port and the isolation port, the electromagnetic coupler being configured to produce a coupled signal at the coupled port responsive to receiving an input signal at the input port. ... Skyworks Solutions Inc

11/09/17 / #20170324388

Apparatus and methods for power amplifiers with an injection-locked oscillator driver stage

Apparatus and methods for power amplifiers with an injection-locked oscillator driver stage are provided herein. In certain configurations, a multi-mode power amplifier includes a driver stage implemented using an injection-locked oscillator and an output stage having an adjustable supply voltage that changes based on a mode of the multi-mode power amplifier. ... Skyworks Solutions Inc

11/09/17 / #20170324160

Shielded radio frequency component with integrated antenna

Aspects of this disclosure relate to a shielded radio frequency component with an integrated antenna. An antenna can be on a first side of a multi-layer substrate and a radio frequency component can be disposed on a second side of the multi-layer substrate such that a ground plane of the multi-layer substrate is positioned between the antenna and the radio frequency component. ... Skyworks Solutions Inc








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