CN1494210A - 表面声波滤波器及具有其的表面声波双工器 - Google Patents
表面声波滤波器及具有其的表面声波双工器 Download PDFInfo
- Publication number
- CN1494210A CN1494210A CNA031264875A CN03126487A CN1494210A CN 1494210 A CN1494210 A CN 1494210A CN A031264875 A CNA031264875 A CN A031264875A CN 03126487 A CN03126487 A CN 03126487A CN 1494210 A CN1494210 A CN 1494210A
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- Prior art keywords
- series arm
- resonator
- acoustic wave
- electrode
- surface acoustic
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- 238000010897 surface acoustic wave method Methods 0.000 title claims abstract description 107
- 239000000758 substrate Substances 0.000 claims abstract description 19
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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 devices; 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 devices; 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
-
- 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)
Abstract
Description
S1 | S2 | S3 | S4 | P1 | P2 | |
静态电容(S1的静态电容为1) | 1 | 1 | 1 | 0.75 | 0.8 | 0.8 |
电极指间距(S1的间距为1:初始值) | 1 | 1 | 1 | 1 | 1.02 | 1.02 |
Claims (23)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2002284867A JP3844725B2 (ja) | 2002-09-30 | 2002-09-30 | 弾性表面波フィルタ、それを有する弾性表面波分波器 |
JP284867/2002 | 2002-09-30 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1494210A true CN1494210A (zh) | 2004-05-05 |
CN100596021C CN100596021C (zh) | 2010-03-24 |
Family
ID=32278303
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN03126487A Expired - Fee Related CN100596021C (zh) | 2002-09-30 | 2003-09-28 | 表面声波滤波器及具有其的表面声波双工器 |
Country Status (4)
Country | Link |
---|---|
US (1) | US6975185B2 (zh) |
JP (1) | JP3844725B2 (zh) |
KR (1) | KR100701564B1 (zh) |
CN (1) | CN100596021C (zh) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104104354A (zh) * | 2013-04-02 | 2014-10-15 | 株式会社村田制作所 | 弹性波谐振装置以及梯子型滤波器 |
CN104467734A (zh) * | 2014-11-07 | 2015-03-25 | 深圳华远微电科技有限公司 | Gps和bds用声表面波滤波器及其小型化封装工艺 |
US9722575B2 (en) | 2013-06-27 | 2017-08-01 | Taiyo Yuden Co., Ltd. | Duplexer |
CN108028642A (zh) * | 2015-09-25 | 2018-05-11 | 追踪有限公司 | 带有抑制的剪切模式的saw滤波器 |
CN108449067A (zh) * | 2017-09-11 | 2018-08-24 | 京信通信技术(广州)有限公司 | 体声波滤波器 |
CN109818595A (zh) * | 2018-12-13 | 2019-05-28 | 天津大学 | 一种带阻滤波器及通信设备 |
CN110995195A (zh) * | 2019-11-15 | 2020-04-10 | 天津大学 | 滤波器 |
CN111327296A (zh) * | 2020-02-27 | 2020-06-23 | 诺思(天津)微***有限责任公司 | 体声波滤波器元件及其形成方法、多工器及通讯设备 |
CN111342791A (zh) * | 2018-12-18 | 2020-06-26 | 天津大学 | 消减谐振器的静态电容的方法及装置 |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005029249A1 (de) * | 2005-06-23 | 2006-12-28 | Epcos Ag | SAW-Struktur mit Stummelfingern |
JP2007074698A (ja) * | 2005-08-08 | 2007-03-22 | Fujitsu Media Device Kk | 分波器及びラダー型フィルタ |
WO2007049699A1 (ja) * | 2005-10-27 | 2007-05-03 | Kyocera Corporation | 分波器とそれを用いた通信装置 |
JP4800026B2 (ja) * | 2005-12-16 | 2011-10-26 | 三星電子株式会社 | 複素係数トランスバーサルフィルタおよび周波数変換器 |
WO2007094368A1 (ja) * | 2006-02-16 | 2007-08-23 | Matsushita Electric Industrial Co., Ltd. | 弾性表面波デバイス、およびこれを用いた弾性表面波フィルタとアンテナ共用器、並びにこれを用いた電子機器 |
CN105391421B (zh) | 2010-11-09 | 2018-04-06 | 天工滤波方案日本有限公司 | 弹性波装置 |
JP5679558B2 (ja) * | 2011-01-19 | 2015-03-04 | 太陽誘電株式会社 | 分波器 |
WO2012176455A1 (ja) | 2011-06-23 | 2012-12-27 | パナソニック株式会社 | ラダー型弾性波フィルタ及びこれを用いたアンテナ共用器 |
JP5816592B2 (ja) * | 2012-05-14 | 2015-11-18 | 株式会社村田製作所 | チューナブルフィルタ |
JP6344161B2 (ja) | 2014-09-03 | 2018-06-20 | 株式会社村田製作所 | ラダー型フィルタ及びデュプレクサ |
WO2018147135A1 (ja) * | 2017-02-07 | 2018-08-16 | 株式会社村田製作所 | 高周波フィルタ、高周波フロントエンド回路及び通信装置 |
KR102429897B1 (ko) * | 2017-12-12 | 2022-08-05 | 가부시키가이샤 무라타 세이사쿠쇼 | 멀티플렉서, 고주파 프론트엔드 회로 및 통신 장치 |
CN111480295B (zh) * | 2017-12-13 | 2023-09-01 | 株式会社村田制作所 | 滤波器装置以及多工器 |
JP7352855B2 (ja) | 2019-08-21 | 2023-09-29 | 株式会社村田製作所 | 分波器 |
CN112073017A (zh) * | 2020-07-29 | 2020-12-11 | 中北大学 | 一种具有温度补偿特性的高性能声表面波滤波器及制作方法 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5313177A (en) * | 1992-04-06 | 1994-05-17 | Motorola, Inc. | Method and apparatus for an acoustic wave filter |
JP3241293B2 (ja) | 1997-04-25 | 2001-12-25 | 富士通株式会社 | 弾性表面波素子およびこれを用いた分波器 |
JP3576367B2 (ja) * | 1998-01-30 | 2004-10-13 | 沖電気工業株式会社 | 弾性表面波フィルタ |
JP3792409B2 (ja) | 1998-10-05 | 2006-07-05 | 京セラ株式会社 | 弾性表面波フィルタ |
US6201457B1 (en) * | 1998-11-18 | 2001-03-13 | Cts Corporation | Notch filter incorporating saw devices and a delay line |
DE10010089A1 (de) * | 2000-03-02 | 2001-09-06 | Epcos Ag | Oberflächenwellenwandler mit optimierter Reflexion |
JP3963253B2 (ja) * | 2001-12-14 | 2007-08-22 | 富士通メディアデバイス株式会社 | 弾性表面波素子及びこれを用いた分波器 |
JP3846409B2 (ja) * | 2002-02-15 | 2006-11-15 | 株式会社村田製作所 | 弾性表面波装置、通信装置 |
-
2002
- 2002-09-30 JP JP2002284867A patent/JP3844725B2/ja not_active Expired - Lifetime
-
2003
- 2003-09-28 CN CN03126487A patent/CN100596021C/zh not_active Expired - Fee Related
- 2003-09-29 KR KR1020030067368A patent/KR100701564B1/ko active IP Right Grant
- 2003-09-29 US US10/671,783 patent/US6975185B2/en not_active Expired - Lifetime
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104104354A (zh) * | 2013-04-02 | 2014-10-15 | 株式会社村田制作所 | 弹性波谐振装置以及梯子型滤波器 |
US9722575B2 (en) | 2013-06-27 | 2017-08-01 | Taiyo Yuden Co., Ltd. | Duplexer |
CN104467734A (zh) * | 2014-11-07 | 2015-03-25 | 深圳华远微电科技有限公司 | Gps和bds用声表面波滤波器及其小型化封装工艺 |
CN104467734B (zh) * | 2014-11-07 | 2017-10-20 | 深圳华远微电科技有限公司 | Gps和bds用声表面波滤波器及其小型化封装工艺 |
CN108028642A (zh) * | 2015-09-25 | 2018-05-11 | 追踪有限公司 | 带有抑制的剪切模式的saw滤波器 |
CN108449067B (zh) * | 2017-09-11 | 2021-03-02 | 京信通信技术(广州)有限公司 | 体声波滤波器 |
CN108449067A (zh) * | 2017-09-11 | 2018-08-24 | 京信通信技术(广州)有限公司 | 体声波滤波器 |
CN109818595A (zh) * | 2018-12-13 | 2019-05-28 | 天津大学 | 一种带阻滤波器及通信设备 |
CN111342791A (zh) * | 2018-12-18 | 2020-06-26 | 天津大学 | 消减谐振器的静态电容的方法及装置 |
CN111342791B (zh) * | 2018-12-18 | 2023-12-15 | 天津大学 | 消减谐振器的静态电容的方法及装置 |
CN110995195A (zh) * | 2019-11-15 | 2020-04-10 | 天津大学 | 滤波器 |
CN110995195B (zh) * | 2019-11-15 | 2023-12-15 | 天津大学 | 滤波器 |
CN111327296A (zh) * | 2020-02-27 | 2020-06-23 | 诺思(天津)微***有限责任公司 | 体声波滤波器元件及其形成方法、多工器及通讯设备 |
CN111327296B (zh) * | 2020-02-27 | 2020-12-22 | 诺思(天津)微***有限责任公司 | 体声波滤波器元件及其形成方法、多工器及通讯设备 |
Also Published As
Publication number | Publication date |
---|---|
KR20040028583A (ko) | 2004-04-03 |
JP3844725B2 (ja) | 2006-11-15 |
CN100596021C (zh) | 2010-03-24 |
US20040095206A1 (en) | 2004-05-20 |
JP2004120685A (ja) | 2004-04-15 |
US6975185B2 (en) | 2005-12-13 |
KR100701564B1 (ko) | 2007-03-30 |
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