JPWO2021153734A1 - - Google Patents

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Publication number
JPWO2021153734A1
JPWO2021153734A1 JP2021574152A JP2021574152A JPWO2021153734A1 JP WO2021153734 A1 JPWO2021153734 A1 JP WO2021153734A1 JP 2021574152 A JP2021574152 A JP 2021574152A JP 2021574152 A JP2021574152 A JP 2021574152A JP WO2021153734 A1 JPWO2021153734 A1 JP WO2021153734A1
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JP
Japan
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Application number
JP2021574152A
Other languages
Japanese (ja)
Other versions
JPWO2021153734A5 (https=
JP7414080B2 (ja
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Publication of JPWO2021153734A1 publication Critical patent/JPWO2021153734A1/ja
Publication of JPWO2021153734A5 publication Critical patent/JPWO2021153734A5/ja
Application granted granted Critical
Publication of JP7414080B2 publication Critical patent/JP7414080B2/ja
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators
    • H03H9/02—Details
    • H03H9/125—Driving means, e.g. electrodes, coils
    • H03H9/145—Driving means, e.g. electrodes, coils for networks using surface acoustic waves
    • H03H9/14538—Formation
    • H03H9/14541—Multilayer finger or busbar electrode
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators
    • H03H9/46—Filters
    • H03H9/64—Filters using surface acoustic waves
    • H03H9/6423—Means for obtaining a particular transfer characteristic
    • H03H9/6433—Coupled resonator filters
    • H03H9/6483—Ladder SAW filters
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators
    • H03H9/02—Details
    • H03H9/02535—Details of surface acoustic wave devices
    • H03H9/02543—Characteristics of substrate, e.g. cutting angles
    • H03H9/02574—Characteristics of substrate, e.g. cutting angles of combined substrates, multilayered substrates, piezoelectrical layers on not-piezoelectrical substrate
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators
    • H03H9/02—Details
    • H03H9/02535—Details of surface acoustic wave devices
    • H03H9/02637—Details concerning reflective or coupling arrays
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators
    • H03H9/02—Details
    • H03H9/02535—Details of surface acoustic wave devices
    • H03H9/02818—Means for compensation or elimination of undesirable effects
    • H03H9/02842—Means for compensation or elimination of undesirable effects of reflections
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators
    • H03H9/02—Details
    • H03H9/125—Driving means, e.g. electrodes, coils
    • H03H9/145—Driving means, e.g. electrodes, coils for networks using surface acoustic waves
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators
    • H03H9/02—Details
    • H03H9/125—Driving means, e.g. electrodes, coils
    • H03H9/145—Driving means, e.g. electrodes, coils for networks using surface acoustic waves
    • H03H9/14544—Transducers of particular shape or position
    • H03H9/14547—Fan shaped; Tilted; Shifted; Slanted; Tapered; Arched; Stepped finger transducers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators
    • H03H9/02—Details
    • H03H9/125—Driving means, e.g. electrodes, coils
    • H03H9/145—Driving means, e.g. electrodes, coils for networks using surface acoustic waves
    • H03H9/14544—Transducers of particular shape or position
    • H03H9/14594—Plan-rotated or plan-tilted transducers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators
    • H03H9/25—Constructional features of resonators using surface acoustic waves
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators
    • H03H9/02—Details
    • H03H9/02535—Details of surface acoustic wave devices
    • H03H9/02637—Details concerning reflective or coupling arrays
    • H03H9/02685—Grating lines having particular arrangements
    • H03H9/02771—Reflector banks

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
JP2021574152A 2020-01-31 2021-01-29 弾性波デバイスおよびそれを備えたラダー型フィルタ Active JP7414080B2 (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2020015068 2020-01-31
JP2020015068 2020-01-31
PCT/JP2021/003249 WO2021153734A1 (ja) 2020-01-31 2021-01-29 弾性波デバイスおよびそれを備えたラダー型フィルタ

Publications (3)

Publication Number Publication Date
JPWO2021153734A1 true JPWO2021153734A1 (https=) 2021-08-05
JPWO2021153734A5 JPWO2021153734A5 (https=) 2022-09-06
JP7414080B2 JP7414080B2 (ja) 2024-01-16

Family

ID=77078230

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2021574152A Active JP7414080B2 (ja) 2020-01-31 2021-01-29 弾性波デバイスおよびそれを備えたラダー型フィルタ

Country Status (5)

Country Link
US (1) US12255635B2 (https=)
JP (1) JP7414080B2 (https=)
KR (1) KR102754581B1 (https=)
CN (1) CN115004547A (https=)
WO (1) WO2021153734A1 (https=)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4459867A4 (en) * 2022-01-24 2025-08-06 Huawei Tech Co Ltd ACOUSTIC FILTER AND ELECTRONIC DEVICE
WO2023190654A1 (ja) * 2022-03-29 2023-10-05 株式会社村田製作所 弾性波装置
CN115694405B (zh) * 2022-11-16 2024-10-11 华中科技大学 一种产生挠曲电的结构和方法
US20240364305A1 (en) * 2023-04-06 2024-10-31 Skyworks Solutions, Inc. Acoustic wave device with interdigital transducer electrodes having two bus bars
KR102844660B1 (ko) * 2023-07-25 2025-08-11 (주)와이솔 질량 부가막이 전극 상에 형성된 표면 탄성파 필터
CN121441252A (zh) * 2024-10-28 2026-01-30 锐石创芯(重庆)微电子有限公司 声表面波器件及射频前端模组
CN119628599B (zh) * 2025-01-08 2025-12-16 锐石创芯(重庆)微电子有限公司 滤波器、射频前端模组和电子设备

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03283710A (ja) * 1990-03-30 1991-12-13 Toshiba Corp 弾性表面波共振子
JP2000224003A (ja) * 1999-02-03 2000-08-11 Toyo Commun Equip Co Ltd 縦結合二重モードｓａｗフィルタ
JP2007060331A (ja) * 2005-08-25 2007-03-08 Seiko Epson Corp Ｓａｗ共振子
JP2009273120A (ja) * 2008-04-11 2009-11-19 Nippon Dempa Kogyo Co Ltd デュプレクサ
JP2010193135A (ja) * 2009-02-18 2010-09-02 Epson Toyocom Corp Ｓａｗデバイス
JP2010263296A (ja) * 2009-04-30 2010-11-18 Murata Mfg Co Ltd 弾性境界波装置
WO2014199683A1 (ja) * 2013-06-13 2014-12-18 株式会社村田製作所 弾性表面波フィルタ、弾性表面波フィルタ装置およびデュプレクサ

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10303691A (ja) 1997-04-25 1998-11-13 Kyocera Corp 弾性表面波装置
JP2002176335A (ja) 2000-09-29 2002-06-21 Kyocera Corp 弾性表面波装置
JP5810113B2 (ja) * 2013-02-19 2015-11-11 スカイワークス・パナソニック フィルターソリューションズ ジャパン株式会社 弾性波共振器とこれを用いた弾性波フィルタおよびアンテナ共用器
JP2015029358A (ja) * 2014-10-29 2015-02-12 セイコーエプソン株式会社 弾性表面波共振子、弾性表面波発振器および電子機器
JP6750528B2 (ja) * 2016-04-21 2020-09-02 株式会社村田製作所 弾性波フィルタ装置
WO2018061878A1 (ja) * 2016-09-29 2018-04-05 株式会社村田製作所 弾性波装置、高周波フロントエンド回路および通信装置
WO2018168836A1 (ja) * 2017-03-15 2018-09-20 株式会社村田製作所 弾性波素子、弾性波フィルタ装置およびマルチプレクサ
JP2021132361A (ja) * 2020-02-21 2021-09-09 株式会社村田製作所 弾性波装置

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03283710A (ja) * 1990-03-30 1991-12-13 Toshiba Corp 弾性表面波共振子
JP2000224003A (ja) * 1999-02-03 2000-08-11 Toyo Commun Equip Co Ltd 縦結合二重モードｓａｗフィルタ
JP2007060331A (ja) * 2005-08-25 2007-03-08 Seiko Epson Corp Ｓａｗ共振子
JP2009273120A (ja) * 2008-04-11 2009-11-19 Nippon Dempa Kogyo Co Ltd デュプレクサ
JP2010193135A (ja) * 2009-02-18 2010-09-02 Epson Toyocom Corp Ｓａｗデバイス
JP2010263296A (ja) * 2009-04-30 2010-11-18 Murata Mfg Co Ltd 弾性境界波装置
WO2014199683A1 (ja) * 2013-06-13 2014-12-18 株式会社村田製作所 弾性表面波フィルタ、弾性表面波フィルタ装置およびデュプレクサ

Also Published As

Publication number Publication date
WO2021153734A1 (ja) 2021-08-05
CN115004547A (zh) 2022-09-02
JP7414080B2 (ja) 2024-01-16
KR20220112806A (ko) 2022-08-11
US20220352874A1 (en) 2022-11-03
KR102754581B1 (ko) 2025-01-14
US12255635B2 (en) 2025-03-18

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