ACOUSTIC WAVE FILTER WITH ENHANCED REJECTION
    22.
    发明申请

    公开(公告)号:US20170179928A1

    公开(公告)日:2017-06-22

    申请号:US15443740

    申请日:2017-02-27

    申请人: RESONANT INC.

    IPC分类号: H03H9/54 H03H9/19 H03H9/56

    摘要: 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. No portion of the edge of each of the interdigitated capacitive fingers is parallel to any portions of edges of the interdigitated resonator fingers. Each of the interdigitated capacitive fingers may comprise a plurality of interdigitated capacitive sub-fingers, or each of the interdigitated capacitive fingers may have a length/width ratio of less than two.

    Technique for designing acoustic microwave filters using lcr-based resonator models
    24.
    发明授权
    Technique for designing acoustic microwave filters using lcr-based resonator models 有权
    使用基于lcr的谐振器模型设计声学微波滤波器的技术

    公开(公告)号:US09525393B1

    公开(公告)日:2016-12-20

    申请号:US14941477

    申请日:2015-11-13

    申请人: RESONANT INC.

    IPC分类号: G06F9/455 G06F17/50 H03H3/04

    摘要: 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.

    摘要翻译: 根据频率响应要求设计声学微波滤波器的方法包括产生具有多个电路元件的建模滤波器电路设计的方法,所述多个电路元件包括由电路模型定义的声学谐振元件,该电路模型包括并联静态分支,平行运动分支, 以及平行布拉格带分支中的一个或两个,其模拟上部布拉格波段不连续性,以及对声学体模式损耗建模的并行体模式功能。 该方法还包括优化建模滤波器电路设计以产生优化的滤波器电路设计,将优化的滤波器电路设计的频率响应与频率响应要求进行比较,以及基于比较的优化滤波器电路设计构建声波微波滤波器 。

    Network synthesis design of microwave acoustic wave filters
    25.
    发明授权
    Network synthesis design of microwave acoustic wave filters 有权
    微波声波滤波器网络综合设计

    公开(公告)号:US09165101B2

    公开(公告)日:2015-10-20

    申请号:US14578131

    申请日:2014-12-19

    申请人: RESONANT INC.

    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。 其他可选步骤包括: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,执行调查和元素删除优化。 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。

    NETWORK SYNTHESIS DESIGN OF MICROWAVE ACOUSTIC WAVE FILTERS
    26.
    发明申请
    NETWORK SYNTHESIS DESIGN OF MICROWAVE ACOUSTIC WAVE FILTERS 有权
    微波声波滤波器的网络合成设计

    公开(公告)号:US20150220665A1

    公开(公告)日:2015-08-06

    申请号:US14666100

    申请日:2015-03-23

    申请人: RESONANT INC.

    IPC分类号: G06F17/50 H03H9/64

    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.

    摘要翻译: 根据频率响应要求设计声学微波滤波器的方法。 该方法包括选择包括多个电路元件的初始滤波器电路结构,该多个电路元件包括至少一个谐振元件和至少一个其它无功电路元件,基于频率响应要求选择电路响应变量,为每个电路元件选择一个值 基于所选择的电路响应变量来创建初始滤波器电路设计,将初始滤波器电路设计的谐振元件和另一个无功电路元件变换成至少一个声谐振器模型,以产生声滤波器电路 设计,增加了声学滤波器电路设计的寄生效应,创建了预优化的滤波电路设计,优化了预优化滤波电路设计,创建了最终滤波电路设计,并构建了基于最终滤波电路设计的声波微波滤波器 。