JP7414080B2 - 弾性波デバイスおよびそれを備えたラダー型フィルタ - Google Patents
弾性波デバイスおよびそれを備えたラダー型フィルタ Download PDFInfo
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- JP7414080B2 JP7414080B2 JP2021574152A JP2021574152A JP7414080B2 JP 7414080 B2 JP7414080 B2 JP 7414080B2 JP 2021574152 A JP2021574152 A JP 2021574152A JP 2021574152 A JP2021574152 A JP 2021574152A JP 7414080 B2 JP7414080 B2 JP 7414080B2
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- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
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- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
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- GQYHUHYESMUTHG-UHFFFAOYSA-N lithium niobate Chemical compound [Li+].[O-][Nb](=O)=O GQYHUHYESMUTHG-UHFFFAOYSA-N 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
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- 238000000034 method Methods 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229910000484 niobium oxide Inorganic materials 0.000 description 1
- URLJKFSTXLNXLG-UHFFFAOYSA-N niobium(5+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Nb+5].[Nb+5] URLJKFSTXLNXLG-UHFFFAOYSA-N 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
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Images
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
- H03H9/46—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
- H03H9/125—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
- H03H9/02—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)
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 JPWO2021153734A1 (https=) | 2021-08-05 |
| JPWO2021153734A5 JPWO2021153734A5 (https=) | 2022-09-06 |
| JP7414080B2 true 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)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023137769A1 (zh) * | 2022-01-24 | 2023-07-27 | 华为技术有限公司 | 一种声学滤波器及电子设备 |
| 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 |
| CN119602738B (zh) * | 2024-10-28 | 2025-12-05 | 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 |
| CN121308715A (zh) * | 2025-01-08 | 2026-01-09 | 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 (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 (9)
| 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 |
| 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 |
-
2021
- 2021-01-29 JP JP2021574152A patent/JP7414080B2/ja active Active
- 2021-01-29 KR KR1020227022834A patent/KR102754581B1/ko active Active
- 2021-01-29 CN CN202180010904.0A patent/CN115004547A/zh active Pending
- 2021-01-29 WO PCT/JP2021/003249 patent/WO2021153734A1/ja not_active Ceased
-
2022
- 2022-07-21 US US17/869,808 patent/US12255635B2/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| KR20220112806A (ko) | 2022-08-11 |
| KR102754581B1 (ko) | 2025-01-14 |
| US12255635B2 (en) | 2025-03-18 |
| US20220352874A1 (en) | 2022-11-03 |
| CN115004547A (zh) | 2022-09-02 |
| JPWO2021153734A1 (https=) | 2021-08-05 |
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