JP7630624B2 - 弾性波装置、フィルタ、分波器及び通信装置 - Google Patents

弾性波装置、フィルタ、分波器及び通信装置 Download PDF

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Publication number
JP7630624B2
JP7630624B2 JP2023534772A JP2023534772A JP7630624B2 JP 7630624 B2 JP7630624 B2 JP 7630624B2 JP 2023534772 A JP2023534772 A JP 2023534772A JP 2023534772 A JP2023534772 A JP 2023534772A JP 7630624 B2 JP7630624 B2 JP 7630624B2
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electrode fingers
electrode
width
filter
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JP2023534772A
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Japanese (ja)
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JPWO2023286705A5 (https=
JPWO2023286705A1 (https=
Inventor
富夫 金澤
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Kyocera Corp
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Kyocera Corp
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Publication of JPWO2023286705A1 publication Critical patent/JPWO2023286705A1/ja
Publication of JPWO2023286705A5 publication Critical patent/JPWO2023286705A5/ja
Priority to JP2024225553A priority Critical patent/JP2025038204A/ja
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    • 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
    • H03H9/02818—Means for compensation or elimination of undesirable effects
    • 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
    • H03H9/25—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
    • H03H9/46—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

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  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
JP2023534772A 2021-07-14 2022-07-08 弾性波装置、フィルタ、分波器及び通信装置 Active JP7630624B2 (ja)

Priority Applications (1)

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JP2024225553A JP2025038204A (ja) 2021-07-14 2024-12-20 弾性波装置、フィルタ、分波器及び通信装置

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2021116224 2021-07-14
JP2021116224 2021-07-14
PCT/JP2022/027084 WO2023286705A1 (ja) 2021-07-14 2022-07-08 弾性波装置、フィルタ、分波器及び通信装置

Related Child Applications (1)

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JP2024225553A Division JP2025038204A (ja) 2021-07-14 2024-12-20 弾性波装置、フィルタ、分波器及び通信装置

Publications (3)

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JPWO2023286705A1 JPWO2023286705A1 (https=) 2023-01-19
JPWO2023286705A5 JPWO2023286705A5 (https=) 2024-04-04
JP7630624B2 true JP7630624B2 (ja) 2025-02-17

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JP2023534772A Active JP7630624B2 (ja) 2021-07-14 2022-07-08 弾性波装置、フィルタ、分波器及び通信装置
JP2024225553A Pending JP2025038204A (ja) 2021-07-14 2024-12-20 弾性波装置、フィルタ、分波器及び通信装置

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JP2024225553A Pending JP2025038204A (ja) 2021-07-14 2024-12-20 弾性波装置、フィルタ、分波器及び通信装置

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US (1) US12542530B2 (https=)
JP (2) JP7630624B2 (https=)
CN (1) CN117795852A (https=)
WO (1) WO2023286705A1 (https=)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPWO2024190677A1 (https=) * 2023-03-15 2024-09-19

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011101350A (ja) 2009-09-22 2011-05-19 Triquint Semiconductor Inc ピストンモード音響波装置と高結合係数を提供する方法
WO2018003338A1 (ja) 2016-06-27 2018-01-04 株式会社村田製作所 弾性波フィルタ装置
JP2019080093A (ja) 2017-10-20 2019-05-23 株式会社村田製作所 弾性波装置
CN110572136A (zh) 2019-09-09 2019-12-13 杭州左蓝微电子技术有限公司 一种叉指换能器

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010005596B4 (de) * 2010-01-25 2015-11-05 Epcos Ag Elektroakustischer Wandler mit verringerten Verlusten durch transversale Emission und verbesserter Performance durch Unterdrückung transversaler Moden
CN107615654B (zh) * 2015-06-24 2020-08-21 株式会社村田制作所 滤波器装置
WO2018216548A1 (ja) * 2017-05-22 2018-11-29 株式会社村田製作所 弾性波装置
WO2019003909A1 (ja) * 2017-06-26 2019-01-03 株式会社村田製作所 弾性波装置及び複合フィルタ装置
JP6888691B2 (ja) 2017-12-19 2021-06-16 株式会社村田製作所 弾性波装置
CN111758219B (zh) * 2018-03-14 2024-07-30 株式会社村田制作所 弹性波装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011101350A (ja) 2009-09-22 2011-05-19 Triquint Semiconductor Inc ピストンモード音響波装置と高結合係数を提供する方法
WO2018003338A1 (ja) 2016-06-27 2018-01-04 株式会社村田製作所 弾性波フィルタ装置
JP2019080093A (ja) 2017-10-20 2019-05-23 株式会社村田製作所 弾性波装置
CN110572136A (zh) 2019-09-09 2019-12-13 杭州左蓝微电子技术有限公司 一种叉指换能器

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Publication number Publication date
WO2023286705A1 (ja) 2023-01-19
CN117795852A (zh) 2024-03-29
US12542530B2 (en) 2026-02-03
JPWO2023286705A1 (https=) 2023-01-19
JP2025038204A (ja) 2025-03-18
US20240322785A1 (en) 2024-09-26

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