JP7714113B2 - 弾性波素子、モジュール及び通信装置 - Google Patents

弾性波素子、モジュール及び通信装置

Info

Publication number
JP7714113B2
JP7714113B2 JP2024504711A JP2024504711A JP7714113B2 JP 7714113 B2 JP7714113 B2 JP 7714113B2 JP 2024504711 A JP2024504711 A JP 2024504711A JP 2024504711 A JP2024504711 A JP 2024504711A JP 7714113 B2 JP7714113 B2 JP 7714113B2
Authority
JP
Japan
Prior art keywords
piezoelectric layer
wave element
velocity
electrode fingers
acoustic velocity
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.)
Active
Application number
JP2024504711A
Other languages
English (en)
Japanese (ja)
Other versions
JPWO2023167221A5 (https=
JPWO2023167221A1 (https=
Inventor
富夫 金澤
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 JPWO2023167221A1 publication Critical patent/JPWO2023167221A1/ja
Publication of JPWO2023167221A5 publication Critical patent/JPWO2023167221A5/ja
Application granted granted Critical
Publication of JP7714113B2 publication Critical patent/JP7714113B2/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
    • H03H9/02535—Details of surface acoustic wave devices
    • H03H9/02543—Characteristics of substrate, e.g. cutting angles
    • H03H9/02559—Characteristics of substrate, e.g. cutting angles of lithium niobate or lithium-tantalate substrates
    • 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
    • H03H9/02866—Means for compensation or elimination of undesirable effects of bulk wave excitation and 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
    • H03H9/02535—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
    • H03H9/25—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

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
JP2024504711A 2022-03-02 2023-03-01 弾性波素子、モジュール及び通信装置 Active JP7714113B2 (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2022031421 2022-03-02
JP2022031421 2022-03-02
PCT/JP2023/007485 WO2023167221A1 (ja) 2022-03-02 2023-03-01 複合基板、弾性波素子、モジュール及び通信装置

Publications (3)

Publication Number Publication Date
JPWO2023167221A1 JPWO2023167221A1 (https=) 2023-09-07
JPWO2023167221A5 JPWO2023167221A5 (https=) 2024-11-07
JP7714113B2 true JP7714113B2 (ja) 2025-07-28

Family

ID=87883902

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2024504711A Active JP7714113B2 (ja) 2022-03-02 2023-03-01 弾性波素子、モジュール及び通信装置

Country Status (4)

Country Link
US (1) US20250183869A1 (https=)
JP (1) JP7714113B2 (https=)
CN (1) CN118901205A (https=)
WO (1) WO2023167221A1 (https=)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20230396233A1 (en) * 2022-05-30 2023-12-07 Skyworks Solutions, Inc. Surface acoustic wave devices having reduced size

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013518455A (ja) 2010-01-25 2013-05-20 エプコス アーゲー 横方向放射損失を低減させ，横方向モードの抑制により性能を高めた電気音響変換器
JP2015222886A (ja) 2014-05-23 2015-12-10 太陽誘電株式会社 弾性波デバイス
JP2016119569A (ja) 2014-12-19 2016-06-30 太陽誘電株式会社 弾性波デバイス
JP2019080093A (ja) 2017-10-20 2019-05-23 株式会社村田製作所 弾性波装置
WO2020045442A1 (ja) 2018-08-30 2020-03-05 株式会社村田製作所 弾性波装置及びラダー型フィルタ

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013518455A (ja) 2010-01-25 2013-05-20 エプコス アーゲー 横方向放射損失を低減させ，横方向モードの抑制により性能を高めた電気音響変換器
JP2015222886A (ja) 2014-05-23 2015-12-10 太陽誘電株式会社 弾性波デバイス
JP2016119569A (ja) 2014-12-19 2016-06-30 太陽誘電株式会社 弾性波デバイス
JP2019080093A (ja) 2017-10-20 2019-05-23 株式会社村田製作所 弾性波装置
WO2020045442A1 (ja) 2018-08-30 2020-03-05 株式会社村田製作所 弾性波装置及びラダー型フィルタ

Also Published As

Publication number Publication date
WO2023167221A1 (ja) 2023-09-07
CN118901205A (zh) 2024-11-05
JPWO2023167221A1 (https=) 2023-09-07
US20250183869A1 (en) 2025-06-05

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