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Resonant Inc patents


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

ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "R" | Resonant Inc-related inventors


Network synthesis design of microwave acoustic wave filters

A multi-band acoustic wave microwave filter, including a signal transmission path having an input and an output; a plurality of nodes disposed along the signal transmission path; a plurality of non-resonant branches respectively coupling one or more nodes to ground, wherein each non-resonant branch comprises at least one non-resonant element; and a plurality of resonant branches that couple one or more nodes to ground and include a plurality of resonators on said branches, wherein the plurality of resonators define a first band and at least one additional band and further wherein the difference between the lowest resonant frequency and the highest resonant frequency of the first band is at least 1.25 times the average separation of the resonators.. . ... Resonant Inc

Hierarchical cascading in two-dimensional finite element method simulation of acoustic wave filter devices

A method of analyzing a microwave acoustic wave (aw) structure comprises defining a physical model of the aw structure, partitioning the physical model into a plurality of unit blocks, identifying at least one core block within the plurality of original unit blocks, computing characteristics of each of the at least one core block, deriving characteristics for each of the original unit blocks from the computed characteristics of the core block(s), combining the original unit blocks into a single block having computed characteristics derived from the characteristics of the unit blocks, such that the single block subsumes the plurality of original unit blocks, and deriving at least one electrical response of the physical model at least partially from the computed characteristics of the single block.. . ... Resonant Inc

Dual passband radio frequency filter and communications device

Multi-band filters, communications devices, and methods of designing multi-band filters are disclosed. A multi-band filter has a lower pass-band and an upper pass-band separated by an intervening stop-band. ... Resonant Inc

Low-loss tunable radio frequency filter

A method of constructing an rf filter comprises designing an rf filter that includes a plurality of resonant elements disposed, a plurality of non-resonant elements coupling the resonant elements together to form a stop band having a plurality of transmission zeroes corresponding to respective frequencies of the resonant elements, and a sub-band between the transmission zeroes. The non-resonant elements comprise a variable non-resonant element for selectively introducing a reflection zero within the stop band to create a pass band in the sub-band. ... Resonant Inc

Element removal design in microwave filters

A method of designing a microwave filter using a computerized filter optimizer, comprises generating a filter circuit design in process (dip) comprising a plurality of circuit elements having a plurality of resonant elements and one or more non-resonant elements, optimizing the dip by inputting the dip into the computerized filter optimizer, determining that one of the plurality of circuit elements in the dip is insignificant, removing the one insignificant circuit element from the dip, deriving a final filter circuit design from the dip, and manufacturing the microwave filter based on the final filter circuit design.. . ... Resonant Inc

Surface acoustic wave filters with extracted poles

Bandpass filters and methods of designing bandpass filters are disclosed. A bandpass filter includes a plurality of series acoustic resonators connected in series between an input and an output, and a plurality of\ shunt acoustic resonators, each shunt acoustic resonator connected between a ground and one of the input, the output, and a junction between two of the plurality of series acoustic resonators. ... Resonant Inc

Radio frequency multiplexers

There are disclosed radio frequency multiplexers and methods of designing radio frequency multiplexers. A radio frequency multiplexer includes three or more band-pass filters having respective passbands, each band-pass filter comprising two or more acoustic resonators. ... Resonant Inc

Simulating effects of temperature on acoustic microwave filters

A method of designing an acoustic microwave filter comprises generating a proposed filter circuit design having an acoustic resonant element with a defined admittance value, introducing a lumped capacitive element in parallel and a lumped inductive element in series with the resonant element, selecting a first capacitance value for the capacitive element and a first inductance value for the inductive element, thereby creating a first temperature modeled filter circuit design, simulating the first temperature modeled filter circuit design at a first operating temperature, thereby generating a first frequency response, selecting a second capacitance value for the capacitive element and a second inductance value for the inductive element, thereby creating a second temperature modeled filter circuit design, simulating the second temperature modeled filter circuit design at a second operating temperature, thereby generating a second frequency response, and comparing the first and second frequency responses to the frequency response requirements.. . ... Resonant Inc

Network synthesis design of microwave acoustic wave filters

A method of designing an acoustic microwave filter in accordance with frequency response requirements. The method comprises selecting an initial filter circuit structure including a plurality of circuit elements comprising at least one resonant element and at least one other reactive circuit element, selecting circuit response variables based on the frequency response requirements, selecting a value for each of the circuit elements based on the selected circuit response variables to create an initial filter circuit design, transforming the resonant element(s) and the other reactive circuit element(s) of the initial filter circuit design into at least one acoustic resonator model to create an acoustic filter circuit design, adding parasitic effects to the acoustic filter circuit design to create a pre-optimized filter circuit design, optimizing the pre-optimized filter circuit design to create a final filter circuit design, and constructing the acoustic microwave filter based on the final filter circuit design.. ... Resonant Inc

Radio frequency filter, high selectivity triplexer, and communications device

Communications devices, triplexers, high-pass filters, and low-pass filters are disclosed. A communications device includes a triplexer having a common port and first, second, and third branch ports. ... Resonant Inc

Spectral analysis of electronic circuits

A method for electronic circuit spectral analysis includes receiving a list of parts for an electronic circuit, determining a part admittance matrix with algebraic nodes for each part, and determining a circuit admittance matrix for exterior nodes, interior nodes, and algebraic nodes based on the part admittance matrices. The method also includes reducing interior nodes of the circuit admittance matrix for exterior nodes, interior nodes, and algebraic nodes to determine a circuit admittance matrix for exterior nodes and algebraic nodes, reducing algebraic nodes to transform the circuit admittance matrix for exterior nodes and algebraic nodes into a green's function, evaluating the green's function to determine a circuit exterior node admittance matrix over a frequency spectrum, and transforming the circuit exterior node admittance matrix to a circuit scattering matrix over the frequency spectrum.. ... Resonant Inc

Interference signal cancellation over a broad frequency range

A signal interference cancellation system includes a signal filter that receives an interference signal and is in communication with a receiver that also receives the interference signal. The signal filter includes (a) a modulation system that modulates the interference signal to generate a modulated signal, (b) a first frequency range within which the modulation system amplifies quadrature components of the modulated signal, (c) a second frequency range within which the modulation system amplifies non-quadrature components of the modulated signal, and (d) a signal adder that combines the amplified quadrature and non-quadrature components of the modulated signal from (b) and (c) to generate an interference cancellation signal. ... Resonant Inc

Technique for designing acoustic microwave filters using lcr-based resonator models

A method of designing an acoustic microwave filter in accordance with frequency response requirements comprises generating a modeled filter circuit design having a plurality of circuit elements comprising an acoustic resonant element defined by an electrical circuit model that comprises a parallel static branch, a parallel motional branch, and one or both of a parallel bragg band branch that models an upper bragg band discontinuity and a parallel bulk mode function that models an acoustic bulk mode loss. The method further comprises optimizing the modeled filter circuit design to generate an optimized filter circuit design, comparing a frequency response of the optimized filter circuit design to the frequency response requirements, and constructing the acoustic microwave filter from the optimized filter circuit design based on the comparison.. ... Resonant Inc

Acoustic wave filter with enhanced rejection

An acoustic filter comprises a piezoelectric layer, an acoustic resonator structure monolithically disposed on the piezoelectric layer, a lumped capacitive structure monolithically disposed on the piezoelectric layer and being electrically coupled to the acoustic resonator structure. The acoustic resonator structure comprises an arrangement of planar interdigitated resonator fingers, and each of the interdigitated capacitive fingers has an edge that is entirely continuous. ... Resonant Inc

06/22/17 / #20170172842

System and method for slowing down degeneration of central nervous system caused by parkinson's disease

A system and method for slowing down degeneration of central nervous system caused by parkinson's disease, which comprises an energy wave generator has an energy wave's frequency control mode. The energy wave's frequency control mode includes multiple controls for acting the energy wave generator to generate and emit energy waves each with a corresponding energy density. ... Resonant Inc

05/18/17 / #20170141751

Technique for designing acoustic microwave filters using lcr-based resonator models

A method of designing an acoustic microwave filter in accordance with frequency response requirements comprises generating a modeled filter circuit design having a plurality of circuit elements comprising an acoustic resonant element defined by an electrical circuit model that comprises a parallel static branch, a parallel motional branch, and one or both of a parallel bragg band branch that models an upper bragg band discontinuity and a parallel bulk mode function that models an acoustic bulk mode loss. The method further comprises optimizing the modeled filter circuit design to generate an optimized filter circuit design, comparing a frequency response of the optimized filter circuit design to the frequency response requirements, and constructing the acoustic microwave filter from the optimized filter circuit design based on the comparison.. ... Resonant Inc

05/18/17 / #20170140085

Simulating effects of temperature on acoustic microwave filters

A method of designing an acoustic microwave filter comprises generating a proposed filter circuit design having an acoustic resonant element with a defined admittance value, introducing a lumped capacitive element in parallel and a lumped inductive element in series with the resonant element, selecting a first capacitance value for the capacitive element and a first inductance value for the inductive element, thereby creating a first temperature modeled filter circuit design, simulating the first temperature modeled filter circuit design at a first operating temperature, thereby generating a first frequency response, selecting a second capacitance value for the capacitive element and a second inductance value for the inductive element, thereby creating a second temperature modeled filter circuit design, simulating the second temperature modeled filter circuit design at a second operating temperature, thereby generating a second frequency response, and comparing the first and second frequency responses to the frequency response requirements.. . ... Resonant Inc

05/04/17 / #20170126203

Surface acoustic wave filters with substrate thickness selected from plural non-contiguous thickness ranges

Surface acoustic wave (saw) filters and methods of fabricating saw filters are disclosed. A filter includes a piezoelectric wafer having a thickness within one of a plurality of noncontiguous thickness ranges that define piezoelectric wafers upon which filter circuits meeting predetermined requirements can be fabricated according to a predetermined design using a predetermined fabrication process, and a filter circuit fabricated on the piezoelectric substrate according to the predetermined design using the predetermined fabrication process.. ... Resonant Inc

03/23/17 / #20170085249

Low-loss tunable radio frequency filter

A method of constructing an rf filter comprises designing an rf filter that includes a plurality of resonant elements disposed, a plurality of non-resonant elements coupling the resonant elements together to form a stop band having a plurality of transmission zeroes corresponding to respective frequencies of the resonant elements, and a sub-band between the transmission zeroes. The non-resonant elements comprise a variable non-resonant element for selectively introducing a reflection zero within the stop band to create a pass band in the sub-band. ... Resonant Inc

03/23/17 / #20170083640

Network synthesis design of microwave acoustic wave filters

A method of designing an acoustic microwave filter in accordance with frequency response requirements. The method comprises selecting an initial filter circuit structure including a plurality of circuit elements comprising at least one resonant element and at least one other reactive circuit element, selecting circuit response variables based on the frequency response requirements, selecting a value for each of the circuit elements based on the selected circuit response variables to create an initial filter circuit design, transforming the resonant element(s) and the other reactive circuit element(s) of the initial filter circuit design into at least one acoustic resonator model to create an acoustic filter circuit design, adding parasitic effects to the acoustic filter circuit design to create a pre-optimized filter circuit design, optimizing the pre-optimized filter circuit design to create a final filter circuit design, and constructing the acoustic microwave filter based on the final filter circuit design.. ... Resonant Inc

03/02/17 / #20170063336

Method of optimizing input impedance of surface acoustic wave filter

Methods of designing band-pass filters are disclosed. A baseline filter design is established, the baseline filter design including a plurality of surface acoustic wave resonators having respective resonant frequencies, the surface acoustic wave resonators organized by resonant frequency into two or more groups. ... Resonant Inc








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