Element removal design in microwave filters
AssigneeResonant Inc.
InventorsNeal Fenzi, Kurt Raihn
Life of this patent
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Abstract
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.
Claims20
A method for generating a model of a reduced component narrowband acoustic wave microwave filter, comprising:
- initializing, by a processor of a computing system, a first filter circuit model based on one or more performance specifications, the first filter circuit model comprising a plurality of circuit elements, wherein the plurality of circuit elements comprises a plurality of resonant elements and one or more non-resonant elements;
- for each of one or more circuit elements:
- determining a significance of the circuit element, by the processor, based on one of a comparison of an impedance of the circuit element to a threshold value, or comparison of a resonant frequency of the circuit element to a passband or stopband of the one or more performance specifications, and
- removing the circuit element from the first filter circuit model, by the processor, responsive to the determination indicating a lack of significance;
- and
- generating, by the processor, a second filter circuit model comprising a subset of the plurality of circuit elements that were not removed.
A system for generating a model of a reduced component narrowband acoustic wave microwave filter, comprising:
- a processor executing a network design synthesizer and an element removal design engine;
- wherein the network design synthesizer is configured to:
- initialize a first filter circuit model based on one or more performance specifications, the first filter circuit model comprising a plurality of circuit elements, wherein the plurality of circuit elements comprises a plurality of resonant elements and one or more non-resonant elements;
- and
- wherein the element removal design engine is configured to:
- for each of one or more circuit elements:
- determine a significance of the circuit element, based on one of a comparison of an impedance of the circuit element to a threshold value, or comparison of a resonant frequency of the circuit element to a passband or stopband of the one or more performance specifications, and
- remove the circuit element from the first filter circuit model, responsive to the determination indicating a lack of significance;
- and
- generate a second filter circuit model comprising a subset of the plurality of circuit elements that were not removed.
Dependencies are inferred from the claim text.