CN117813764A - 弹性波装置、滤波器、分波器以及通信装置 - Google Patents

弹性波装置、滤波器、分波器以及通信装置 Download PDF

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Publication number
CN117813764A
CN117813764A CN202280047826.6A CN202280047826A CN117813764A CN 117813764 A CN117813764 A CN 117813764A CN 202280047826 A CN202280047826 A CN 202280047826A CN 117813764 A CN117813764 A CN 117813764A
Authority
CN
China
Prior art keywords
electrode
elastic wave
region
bus bar
connection portions
Prior art date
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.)
Pending
Application number
CN202280047826.6A
Other languages
English (en)
Chinese (zh)
Inventor
金泽富夫
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kyocera Corp
Original Assignee
Kyocera Corp
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 by Kyocera Corp filed Critical Kyocera Corp
Publication of CN117813764A publication Critical patent/CN117813764A/zh
Pending legal-status Critical Current

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
    • H03H9/25—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
    • H03H9/02543—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
    • H03H9/02992—Details of bus bars, contact pads or other electrical connections for finger electrodes
    • 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
    • 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
    • H03H9/1457—Transducers having different finger widths
    • 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
    • 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
    • H03H9/70—Multiple-port networks for connecting several sources or loads, working on different frequencies or frequency bands, to a common load or source
    • H03H9/72—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
    • H03H9/70—Multiple-port networks for connecting several sources or loads, working on different frequencies or frequency bands, to a common load or source
    • H03H9/72—Networks using surface acoustic waves
    • H03H9/725—Duplexers

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
CN202280047826.6A 2021-07-16 2022-07-08 弹性波装置、滤波器、分波器以及通信装置 Pending CN117813764A (zh)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2021117708 2021-07-16
JP2021-117708 2021-07-16
PCT/JP2022/027079 WO2023286704A1 (ja) 2021-07-16 2022-07-08 弾性波装置、フィルタ、分波器及び通信装置

Publications (1)

Publication Number Publication Date
CN117813764A true CN117813764A (zh) 2024-04-02

Family

ID=84919398

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202280047826.6A Pending CN117813764A (zh) 2021-07-16 2022-07-08 弹性波装置、滤波器、分波器以及通信装置

Country Status (4)

Country Link
US (1) US20240339986A1 (https=)
JP (1) JP7682274B2 (https=)
CN (1) CN117813764A (https=)
WO (1) WO2023286704A1 (https=)

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5654114A (en) * 1979-10-11 1981-05-14 Nec Corp Reed screen shape converter of elastic surface wave
JPH10173467A (ja) * 1996-12-13 1998-06-26 Toyo Commun Equip Co Ltd トランスバーサル型ｓａｗフィルタ
JPH11261370A (ja) * 1998-03-11 1999-09-24 Nec Corp 弾性表面波デバイス
JP4345768B2 (ja) * 2006-04-05 2009-10-14 株式会社村田製作所 表面波装置
JP2015056746A (ja) * 2013-09-11 2015-03-23 株式会社村田製作所 弾性波装置
CN107615654B (zh) * 2015-06-24 2020-08-21 株式会社村田制作所 滤波器装置
CN110892640B (zh) * 2017-07-20 2021-02-19 株式会社村田制作所 多工器、高频前端电路以及通信装置
DE102018131952A1 (de) * 2018-12-12 2020-06-18 RF360 Europe GmbH Elektroakustischer Resonator mit unterdrückter Anregungtransversaler Spaltmoden und verringerten transversalen Moden

Also Published As

Publication number Publication date
US20240339986A1 (en) 2024-10-10
WO2023286704A1 (ja) 2023-01-19
JP7682274B2 (ja) 2025-05-23
JPWO2023286704A1 (https=) 2023-01-19

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