JPWO2021177108A1 - - Google Patents

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Publication number
JPWO2021177108A1
JPWO2021177108A1 JP2022505142A JP2022505142A JPWO2021177108A1 JP WO2021177108 A1 JPWO2021177108 A1 JP WO2021177108A1 JP 2022505142 A JP2022505142 A JP 2022505142A JP 2022505142 A JP2022505142 A JP 2022505142A JP WO2021177108 A1 JPWO2021177108 A1 JP WO2021177108A1
Authority
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.)
Granted
Application number
JP2022505142A
Other versions
JP7401649B2 (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
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Publication of JPWO2021177108A1 publication Critical patent/JPWO2021177108A1/ja
Application granted granted Critical
Publication of JP7401649B2 publication Critical patent/JP7401649B2/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 devices; 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
    • H03H9/14576—Transducers whereby only the last fingers have different characteristics with respect to the other fingers, e.g. different shape, thickness or material, split finger
    • H03H9/14582—Transducers whereby only the last fingers have different characteristics with respect to the other fingers, e.g. different shape, thickness or material, split finger the last fingers having a different pitch
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic devices; 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 devices; 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 devices; 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 devices; 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

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
JP2022505142A 2020-03-06 2021-02-24 弾性波共振子、弾性波フィルタ、分波器、通信装置 Active JP7401649B2 (ja)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
JP2020039361 2020-03-06
JP2020039361 2020-03-06
JP2020110832 2020-06-26
JP2020110832 2020-06-26
PCT/JP2021/006850 WO2021177108A1 (ja) 2020-03-06 2021-02-24 弾性波共振子、弾性波フィルタ、分波器、通信装置

Publications (2)

Publication Number Publication Date
JPWO2021177108A1 true JPWO2021177108A1 (ja) 2021-09-10
JP7401649B2 JP7401649B2 (ja) 2023-12-19

Family

ID=77613016

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2022505142A Active JP7401649B2 (ja) 2020-03-06 2021-02-24 弾性波共振子、弾性波フィルタ、分波器、通信装置

Country Status (4)

Country Link
US (1) US20230223925A1 (ja)
JP (1) JP7401649B2 (ja)
CN (1) CN115398801A (ja)
WO (1) WO2021177108A1 (ja)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023068206A1 (ja) * 2021-10-22 2023-04-27 株式会社村田製作所 マルチプレクサ
WO2023136294A1 (ja) * 2022-01-14 2023-07-20 株式会社村田製作所 弾性波装置
WO2024024778A1 (ja) * 2022-07-29 2024-02-01 京セラ株式会社 弾性波共振子、弾性波フィルタおよび通信装置
CN116633307B (zh) * 2023-05-23 2024-09-10 无锡市好达电子股份有限公司 弹性波装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63135010A (ja) * 1986-11-26 1988-06-07 Alps Electric Co Ltd 弾性表面波共振子
US8294330B1 (en) * 2009-03-31 2012-10-23 Triquint Semiconductor, Inc. High coupling, low loss saw filter and associated method
WO2016121818A1 (ja) * 2015-01-27 2016-08-04 京セラ株式会社 フィルタ，分波器および通信装置
JP2018137517A (ja) * 2017-02-20 2018-08-30 京セラ株式会社 弾性表面波共振子、分波器および通信装置
WO2019111664A1 (ja) * 2017-12-08 2019-06-13 株式会社村田製作所 弾性波装置

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5239741B2 (ja) * 2008-10-24 2013-07-17 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弾性表面波モジュール装置
CN108496308B (zh) * 2016-01-29 2021-11-16 京瓷株式会社 弹性波谐振器、弹性波滤波器、分波器及通信装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63135010A (ja) * 1986-11-26 1988-06-07 Alps Electric Co Ltd 弾性表面波共振子
US8294330B1 (en) * 2009-03-31 2012-10-23 Triquint Semiconductor, Inc. High coupling, low loss saw filter and associated method
WO2016121818A1 (ja) * 2015-01-27 2016-08-04 京セラ株式会社 フィルタ，分波器および通信装置
JP2018137517A (ja) * 2017-02-20 2018-08-30 京セラ株式会社 弾性表面波共振子、分波器および通信装置
WO2019111664A1 (ja) * 2017-12-08 2019-06-13 株式会社村田製作所 弾性波装置

Also Published As

Publication number Publication date
WO2021177108A1 (ja) 2021-09-10
US20230223925A1 (en) 2023-07-13
JP7401649B2 (ja) 2023-12-19
CN115398801A (zh) 2022-11-25

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