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1.发明申请公开(公告)号：US20190173448A1
公开(公告)日：2019-06-06
申请号：US16273192
申请日：2019-02-12
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Masanori KATO , Syunsuke KIDO
CPC classification number: H03H7/0161 , H03H7/01 , H03H7/38 , H03H9/465 , H03H9/542 , H03H9/605 , H03H9/6483 , H03H2007/013 , H03H2009/02299 , H04J1/045
Abstract: A filter includes two series arm resonators electrically connected in series between two input/output terminals, a parallel arm resonator electrically connected between a ground and a series arm between the two series arm resonators, an inductor electrically connected in parallel to the two series arm resonators, and a matching circuit electrically connected between one of the two series arm resonators and one of the input/output terminals, wherein the two series arm resonators and the parallel arm resonator define a pass band of a bandpass filter, the two series arm resonators and the inductor define an LC resonant circuit, respective anti-resonant frequencies of each of the two series arm resonators and a resonant frequency of the parallel arm resonator are located in a pass band of the LC resonant circuit, and a resonant frequency of the LC resonant circuit is lower than the resonant frequency of the parallel arm resonator.
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公开(公告)号：US09934345B2
公开(公告)日：2018-04-03
申请号：US15673916
申请日：2017-08-10
Applicant: RESONANT INC.
Inventor： Patrick J. Turner , Richard N. Silver , Balam Quitze Andres Willemsen Cortes , Kurt F. Raihn , Neal O. Fenzi , Robert B. Hammond
CPC classification number: G06F17/505 , G06F17/5063 , H03H3/00 , H03H9/465 , H03H9/542 , H03H9/64 , H03H9/6483
Abstract: 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.
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公开(公告)号：US20180013403A1
公开(公告)日：2018-01-11
申请号：US15694653
申请日：2017-09-01
Applicant: RESONANT INC.
Inventor： Genichi Tsuzuki , Balam A. Willemsen
IPC: H03H9/46 , G06F17/50 , H01P1/20 , H01P1/203 , H03H3/00 , H03H7/06 , H03H9/64 , H03H9/54 , H03H9/17 , H03H7/12 , H03H7/075 , H03H7/01 , H03H9/02 , H03H7/54
CPC classification number: H03H9/465 , G06F17/5036 , G06F17/5045 , G06F17/5063 , G06F17/5072 , G06F17/5077 , G06F2217/02 , G06F2217/08 , G06F2217/16 , G06F2217/82 , H01P1/20 , H01P1/20336 , H03H3/00 , H03H7/0153 , H03H7/0161 , H03H7/06 , H03H7/075 , H03H7/12 , H03H7/1758 , H03H7/1791 , H03H7/54 , H03H9/171 , H03H9/46 , H03H9/462 , H03H9/542 , H03H9/64 , H03H9/6406 , H03H2007/013 , H03H2009/02204 , H03H2210/012 , H03H2210/025 , H03H2210/033 , Y10T29/49018
Abstract: 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. The method further comprises changing the order in which the resonant elements are disposed along the signal transmission path to create a plurality of filter solutions, computing a performance parameter for each of the filter solutions, comparing the performance parameters to each other, selecting one of the filter solutions based on the comparison of the computed performance parameters, and constructing the RF filter using the selected filter solution.
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公开(公告)号：US20170141754A1
公开(公告)日：2017-05-18
申请号：US15274414
申请日：2016-09-23
Applicant: LGS INNOVATIONS LLC
Inventor： MICHAEL JARRET HOLYOAK , GEORGE KENNETH KANNELL , MARC JAY BEACKEN , DAVID J. BISHOP , JACKSON CHANG , MATTHIAS IMBODEN
IPC: H03H9/46
CPC classification number: H03H9/462 , H01P1/205 , H01P7/04 , H03H9/465 , H03J2200/39
Abstract: The present application is directed to a tunable filter system. The system includes a resonator having an inner wall surrounding a cavity. The resonator includes a MEMS device positioned in the cavity including a substrate, a movable plate and a thermal actuator. The thermal actuator is has a first end coupled to the substrate and a second end coupled to the plate. The actuator moves the plate between a first and a second position in relation to the substrate. The application is also directed to a method for operating the tunable filter.
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公开(公告)号：US09647628B2
公开(公告)日：2017-05-09
申请号：US14876547
申请日：2015-10-06
Applicant: RESONANT INC.
Inventor： Genichi Tsuzuki , Balam A. Willemsen
IPC: H01P1/20 , H03H7/01 , H03H7/075 , H03H7/12 , G06F17/50 , H01P1/203 , H03H3/00 , H03H9/46 , H03H9/54 , H03H9/64 , H03H9/17 , H03H7/54 , H03H9/02
CPC classification number: H03H9/465 , G06F17/5036 , G06F17/5045 , G06F17/5063 , G06F17/5072 , G06F17/5077 , G06F2217/02 , G06F2217/08 , G06F2217/16 , G06F2217/82 , H01P1/20 , H01P1/20336 , H03H3/00 , H03H7/0153 , H03H7/0161 , H03H7/06 , H03H7/075 , H03H7/12 , H03H7/1758 , H03H7/1791 , H03H7/54 , H03H9/171 , H03H9/46 , H03H9/462 , H03H9/542 , H03H9/64 , H03H9/6406 , H03H2007/013 , H03H2009/02204 , H03H2210/012 , H03H2210/025 , H03H2210/033 , Y10T29/49018
Abstract: 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. The method further comprises changing the order in which the resonant elements are disposed along the signal transmission path to create a plurality of filter solutions, computing a performance parameter for each of the filter solutions, comparing the performance parameters to each other, selecting one of the filter solutions based on the comparison of the computed performance parameters, and constructing the RF filter using the selected filter solution.
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Patent Agency Ranking
公开(公告)号：US09038005B2
公开(公告)日：2015-05-19
申请号：US13838943
申请日：2013-03-15
Applicant: RESONANT LLC
Inventor： Patrick J. Turner , Richard N. Silver , Balam Quitze Andres Willemsen Cortes , Kurt F. Raihn , Neal O. Fenzi , Robert B. Hammond
CPC classification number: G06F17/505 , G06F17/5036 , G06F17/5063 , H03H9/46 , H03H9/465 , H03H9/542 , H03H9/6483
Abstract: 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.
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7.发明申请公开(公告)号：US20150048902A1
公开(公告)日：2015-02-19
申请号：US13970120
申请日：2013-08-19
Applicant: HARRIS CORPORATION
Inventor： JOHN E. ROGERS
CPC classification number: H03H3/0072 , B81B7/0006 , H03H3/0073 , H03H7/0115 , H03H9/462 , H03H9/465 , H03H9/505 , H03H9/525 , H03H2007/006 , Y10T29/49016
Abstract: Integrated Microelectromechanical System (“MEMS”) devices and methods for making the same. The integrated MEMS device comprises a substrate (200) with first electronic circuitry (206) formed thereon, as well as a MEMS filter device (100). The MEMS filter device has a transition portion (118) configured to (a) electrically connect the MEMS filter device to second electronic circuitry and (b) suspend the MEMS filter device over the substrate such that a gas gap exists between the substrate and the MEMS filter device. The transition portion comprises a three dimensional hollow ground structure (120) in which an elongate center conductor (122) is suspended. The RF MEMS filter device also comprises at least two adjacent electronic elements (102/110) which are electrically isolated from each other via a ground structure of the transition portion, and placed in close proximity to each other.
Abstract translation: 集成微机电系统（“MEMS”）器件及其制造方法。 集成MEMS装置包括其上形成有第一电子电路（206）的基板（200）以及MEMS滤波器装置（100）。 MEMS滤波器装置具有过渡部分（118），其被配置为（a）将MEMS滤波器装置电连接到第二电子电路，以及（b）将MEMS滤波器装置悬挂在衬底上，使得在衬底和MEMS之间存在气隙 过滤装置 过渡部分包括三维中空接地结构（120），其中细长的中心导体（122）悬挂在其中。 RF MEMS滤波器装置还包括至少两个相邻的电子元件（102/110），它们经由过渡部分的接地结构彼此电隔离并彼此靠近放置。
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公开(公告)号：US08791624B2
公开(公告)日：2014-07-29
申请号：US13237713
申请日：2011-09-20
Applicant: Sophie Ngo , Edgard Jeanne , Daniel Alquier
Inventor： Sophie Ngo , Edgard Jeanne , Daniel Alquier
IPC: H02N1/00
CPC classification number: H03H9/02259 , H03H9/24 , H03H9/465 , H04B11/00
Abstract: An electroacoustic transducer including a first electrode formed on a substrate capable of transmitting ultrasounds, a membrane formed above the first electrode and separated therefrom by a cavity, a second electrode formed on the membrane, a first insulating layer on the second electrode, and a third electrode formed on the first insulating layer.
Abstract translation: 一种电声换能器，包括形成在能够传输超声波的基板上的第一电极，形成在第一电极上方并通过空腔分离的膜，形成在膜上的第二电极，第二电极上的第一绝缘层，以及第三电极 电极，形成在第一绝缘层上。
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公开(公告)号：US08701065B1
公开(公告)日：2014-04-15
申请号：US13939065
申请日：2013-07-10
Applicant: Resonant LLC
Inventor： Richard N. Silver , Kurt F. Raihn , Neal O. Fenzi , Robert B. Hammond
CPC classification number: H03H9/64 , G06F17/5063 , H03H9/25 , H03H9/462 , H03H9/465 , H03H9/542 , H03H9/568 , H03H9/605 , H03H9/6483 , H03H2260/00
Abstract: A method of designing an acoustic microwave filter comprises selecting a filter section based on frequency response requirements. The filter section includes an input, an output, and a plurality of circuit elements. The circuit elements have at least in-line acoustic resonators or in-shunt acoustic resonators. The method further comprises selecting a value for each circuit element, selecting a number of filter sections, and cascading the selected number of filter sections to create a cascaded filter circuit design, such that at least one pair of immediately adjacent filter sections are connected to each other via their inputs or their outputs. The method further comprises adding parasitic effects to the cascaded 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.
Abstract translation: 设计声波微波滤波器的方法包括：基于频率响应要求选择滤波器部分。 滤波器部分包括输入，输出和多个电路元件。 电路元件至少具有在线声谐振器或分流声谐振器。 该方法还包括为每个电路元件选择一个值，选择多个滤波器部分，以及级联所选数量的滤波器部分以创建级联滤波器电路设计，使得至少一对直接相邻的滤波器部分连接到每个 其他通过其输入或其输出。 该方法还包括向级联滤波器电路设计增加寄生效应以创建预优化滤波器电路设计，优化预优化滤波器电路设计以创建最终滤波器电路设计，以及基于最终滤波器构建声波微波滤波器 电路设计。
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10.发明授权公开(公告)号：US08106723B2
公开(公告)日：2012-01-31
申请号：US12486662
申请日：2009-06-17
Applicant: Toru Watanabe
Inventor： Toru Watanabe
CPC classification number: H03H9/02409 , H03H9/2426 , H03H9/2463 , H03H9/465 , H03H9/467 , H03H2009/02511
Abstract: A resonant circuit includes a substrate; a MEMS resonator including a fixed electrode and a movable electrode formed above the substrate and having a first terminal and a second terminal, the movable electrode having a movable portion opposing at least a part of the fixed electrode; a first input-output terminal connected to the first terminal connected to one of the fixed electrode and the movable electrode of the MEMS resonator; a second input-output terminal connected to the second terminal connected to an other one of the fixed electrode and the movable electrode of the MEMS resonator; a voltage applying unit supplying a potential to at least the first terminal to apply a bias voltage between the first and the second terminals; and a variable capacitance connected between the first terminal and the first input-output terminal to allow a capacitance value to be changed by a change in a potential difference between opposite ends of the variable capacitance.
Abstract translation: 谐振电路包括基板; MEMS谐振器，包括固定电极和可动电极，其形成在所述基板上并具有第一端子和第二端子，所述可动电极具有与所述固定电极的至少一部分相对的可动部分; 连接到连接到MEMS谐振器的固定电极和可移动电极之一的第一端子的第一输入 - 输出端子; 连接到与MEMS谐振器的固定电极和可动电极中的另一个连接的第二端子的第二输入 - 输出端子; 电压施加单元，向至少所述第一端子提供电位，以在所述第一端子和所述第二端子之间施加偏置电压; 以及连接在第一端子和第一输入 - 输出端子之间的可变电容器，以通过可变电容的相对端之间的电位差的变化来改变电容值。
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