NETWORK SYNTHESIS DESIGN OF MICROWAVE ACOUSTIC WAVE FILTERS

    公开(公告)号:US20160070827A1

    公开(公告)日:2016-03-10

    申请号:US14945736

    申请日:2015-11-19

    申请人: RESONANT INC.

    IPC分类号: G06F17/50

    摘要: 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.

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

    公开(公告)号:US10437952B2

    公开(公告)日:2019-10-08

    申请号:US15925609

    申请日:2018-03-19

    申请人: Resonant Inc.

    摘要: A method for designing a narrowband acoustic wave microwave filter including: generating a modeled filter circuit design having circuit elements including an acoustic resonant element defined by an electrical circuit model that includes 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; and generating a final circuit design. Generating the final circuit design includes optimizing the modeled filter circuit design to generate an optimized filter circuit design; comparing a frequency response of the optimized filter circuit design to requirements; selecting the optimized filter circuit design for construction into the actual acoustic microwave filter based on the comparison; and transforming the optimized filter circuit design to a design description file for input to a construction process.

    NETWORK SYNTHESIS DESIGN OF MICROWAVE ACOUSTIC WAVE FILTERS
    5.
    发明申请
    NETWORK SYNTHESIS DESIGN OF MICROWAVE ACOUSTIC WAVE FILTERS 审中-公开
    微波声波滤波器的网络合成设计

    公开(公告)号:US20150106072A1

    公开(公告)日:2015-04-16

    申请号:US14578131

    申请日:2014-12-19

    申请人: RESONANT INC.

    IPC分类号: G06F17/50

    摘要: Methods for the design of microwave filters comprises comprising preferably the steps of inputting a first set of filter requirements, inputting a selection of circuit element types, inputting a selection of lossless circuit response variables, calculating normalized circuit element values based on the input parameters, and generate a first circuit, insert parasitic effects to the normalized circuit element values of the first circuit, and output at least the first circuit including the post-parasitic effect circuit values. Additional optional steps include: requirements to a normalized design space, performing an equivalent circuit transformation, unmapping the circuit to a real design space, performing a survey, and element removal optimization. Computer implement software, systems, and microwave filters designed in accordance with the method are included.

    摘要翻译: 用于设计微波滤波器的方法包括优选地包括以下步骤:输入第一组滤波器要求,输入电路元件类型的选择,输入无损电路响应变量的选择,基于输入参数计算归一化电路元件值;以及 产生第一电路,将寄生效应插入第一电路的归一化电路元件值,并至少输出包括后置寄生效应电路值的第一电路。 附加的可选步骤包括:对标准化设计空间的要求,执行等效电路变换,将电路取消映射到实际设计空间,执行调查和元素去除优化。 包括按照该方法设计的计算机实施软件,系统和微波滤波器。

    Acoustic wave filter with enhanced rejection

    公开(公告)号:US09608595B1

    公开(公告)日:2017-03-28

    申请号:US14941451

    申请日:2015-11-13

    申请人: RESONANT INC.

    IPC分类号: H03H9/64 H03H9/54 H03H9/60

    摘要: A narrow-band acoustic filter comprises an input and an output, and at least one acoustic resonator pair coupled between the input and the output. Each of the acoustic resonator pair(s) comprises at least one in-line acoustic resonator and in-shunt acoustic resonator that operate together to create a nominal passband. The acoustic filter further comprises at least one capacitive element in parallel with one of the in-line acoustic resonator and the in-shunt acoustic resonator of each of the acoustic resonator pair(s), thereby sharpening one of a lower edge and an upper edge of the nominal passband.

    TECHNIQUE FOR DESIGNING ACOUSTIC MICROWAVE FILTERS USING LCR-BASED RESONATOR MODELS

    公开(公告)号:US20190392090A1

    公开(公告)日:2019-12-26

    申请号:US16400717

    申请日:2019-05-01

    申请人: Resonant, Inc.

    摘要: A method for designing a narrowband acoustic wave microwave filter including: generating a modeled filter circuit design having circuit elements including an acoustic resonant element defined by an electrical circuit model that includes 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; and generating a final circuit design. Generating the final circuit design includes optimizing the modeled filter circuit design to generate an optimized filter circuit design; comparing a frequency response of the optimized filter circuit design to requirements; selecting the optimized filter circuit design for construction into the actual acoustic microwave filter based on the comparison; and transforming the optimized filter circuit design to a design description file for input to a construction process.

    Acoustic wave filter with enhanced rejection

    公开(公告)号:US10305447B2

    公开(公告)日:2019-05-28

    申请号:US15443740

    申请日:2017-02-27

    申请人: RESONANT INC.

    IPC分类号: H03H9/64 H03H9/54 H03H9/56

    摘要: An acoustic filter comprises a piezoelectric layer; an acoustic resonator structure monolithically disposed on the piezoelectric layer, the acoustic resonator structure including an arrangement of planar interdigitated resonator fingers; and a lumped capacitive structure monolithically disposed on the piezoelectric layer and being electrically coupled to the acoustic resonator structure, the lumped capacitive structure including an arrangement of planar interdigitated capacitive fingers, each of at least one of the interdigitated capacitive fingers having an edge that is entirely continuous.