CN1830143A - 表面声波滤波器 - Google Patents
表面声波滤波器 Download PDFInfo
- Publication number
- CN1830143A CN1830143A CNA2004800216602A CN200480021660A CN1830143A CN 1830143 A CN1830143 A CN 1830143A CN A2004800216602 A CNA2004800216602 A CN A2004800216602A CN 200480021660 A CN200480021660 A CN 200480021660A CN 1830143 A CN1830143 A CN 1830143A
- Authority
- CN
- China
- Prior art keywords
- electrode
- acoustic wave
- surface acoustic
- propagation path
- wave propagation
- 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.)
- Granted
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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
- H03H9/46—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 devices; 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
- H03H9/0274—Intra-transducers grating lines
-
- 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
- H03H9/02—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
- H03H9/14588—Horizontally-split transducers
Landscapes
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
Abstract
Description
Claims (9)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP282590/2003 | 2003-07-30 | ||
JP2003282590 | 2003-07-30 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1830143A true CN1830143A (zh) | 2006-09-06 |
CN100511999C CN100511999C (zh) | 2009-07-08 |
Family
ID=34113779
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB2004800216602A Active CN100511999C (zh) | 2003-07-30 | 2004-07-28 | 表面声波滤波器 |
Country Status (5)
Country | Link |
---|---|
US (1) | US7482895B2 (zh) |
JP (1) | JP4544157B2 (zh) |
KR (1) | KR101044971B1 (zh) |
CN (1) | CN100511999C (zh) |
WO (1) | WO2005013481A1 (zh) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103152010A (zh) * | 2013-03-14 | 2013-06-12 | 北京中讯四方科技股份有限公司 | 一种基于镂空反射电极结构的声表面波滤波器 |
CN107624221A (zh) * | 2015-05-08 | 2018-01-23 | 追踪有限公司 | 级联谐振器 |
CN109643989A (zh) * | 2016-09-02 | 2019-04-16 | 株式会社村田制作所 | 弹性波滤波器装置、高频前端电路以及通信装置 |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10304470B4 (de) * | 2003-02-04 | 2013-09-05 | Epcos Ag | Mit akustischen Oberflächenwellen arbeitendes elektronisches Bauelement |
JP4694868B2 (ja) * | 2005-03-22 | 2011-06-08 | 京セラキンセキ株式会社 | 弾性表面波フィルタ |
US7619347B1 (en) | 2005-05-24 | 2009-11-17 | Rf Micro Devices, Inc. | Layer acoustic wave device and method of making the same |
US7408286B1 (en) | 2007-01-17 | 2008-08-05 | Rf Micro Devices, Inc. | Piezoelectric substrate for a saw device |
US8490260B1 (en) | 2007-01-17 | 2013-07-23 | Rf Micro Devices, Inc. | Method of manufacturing SAW device substrates |
JP2009088999A (ja) | 2007-09-28 | 2009-04-23 | Nippon Dempa Kogyo Co Ltd | 弾性波フィルタ |
US20090231060A1 (en) * | 2008-03-11 | 2009-09-17 | Rf Monolithics, Inc. | Ladder resonator filter and related system |
CN103314529A (zh) * | 2011-01-24 | 2013-09-18 | 埃普科斯股份有限公司 | 表面声波滤波器 |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2709713B2 (ja) * | 1988-03-17 | 1998-02-04 | 東洋通信機株式会社 | 共振子フィルタ |
JP2800905B2 (ja) | 1991-10-28 | 1998-09-21 | 富士通株式会社 | 弾性表面波フィルタ |
US5486800A (en) * | 1994-09-29 | 1996-01-23 | Motorola, Inc. | Surface acoustic wave device |
GB2296614B (en) * | 1994-12-23 | 1999-09-15 | Advanced Saw Prod Sa | Saw filter |
JPH08265099A (ja) | 1995-03-20 | 1996-10-11 | Oki Electric Ind Co Ltd | 共振器型弾性表面波フィルタ |
US5635883A (en) * | 1995-08-28 | 1997-06-03 | Motorola, Inc. | Acoustic wave filter with filter-shaping element and method |
US5638036A (en) * | 1995-09-11 | 1997-06-10 | Motorola, Inc. | Acoustic wave ladder filter with unequal series and shunt transducer periodicities and method of making |
DE19638455A1 (de) * | 1996-09-19 | 1998-04-02 | Siemens Matsushita Components | Twin-Dualmode-Filter |
JP4031096B2 (ja) | 1997-01-16 | 2008-01-09 | 株式会社東芝 | 弾性表面波フィルタ及び弾性表面波フィルタの構成方法 |
JPH1117494A (ja) * | 1997-06-20 | 1999-01-22 | Toyo Commun Equip Co Ltd | 多重モードsawフィルタ |
JP3171144B2 (ja) * | 1997-07-07 | 2001-05-28 | 株式会社村田製作所 | 表面波装置 |
JP3382920B2 (ja) | 2000-06-30 | 2003-03-04 | 沖電気工業株式会社 | 共振器型弾性表面波フィルタ |
FR2821997B1 (fr) * | 2001-03-06 | 2003-05-30 | Thomson Csf | Filtre a ondes acoustiques de surface |
JP3873807B2 (ja) * | 2001-06-22 | 2007-01-31 | 株式会社村田製作所 | 弾性表面波装置、通信装置 |
JP2003174350A (ja) | 2001-12-06 | 2003-06-20 | Mitsubishi Electric Corp | 縦結合型弾性表面波フィルタ |
DE10213277A1 (de) * | 2002-03-25 | 2003-10-16 | Epcos Ag | Multiport-Resonatorfilter |
JP2003163575A (ja) * | 2002-09-13 | 2003-06-06 | Murata Mfg Co Ltd | 複合sawフィルタ及びsawフィルタ |
US7112912B2 (en) * | 2004-03-16 | 2006-09-26 | Tdk Corporation | Surface acoustic wave device and branching filter |
-
2004
- 2004-07-28 KR KR1020067001958A patent/KR101044971B1/ko active IP Right Grant
- 2004-07-28 US US10/563,281 patent/US7482895B2/en active Active
- 2004-07-28 CN CNB2004800216602A patent/CN100511999C/zh active Active
- 2004-07-28 WO PCT/JP2004/011116 patent/WO2005013481A1/ja active Application Filing
- 2004-07-28 JP JP2005512557A patent/JP4544157B2/ja active Active
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103152010A (zh) * | 2013-03-14 | 2013-06-12 | 北京中讯四方科技股份有限公司 | 一种基于镂空反射电极结构的声表面波滤波器 |
CN103152010B (zh) * | 2013-03-14 | 2016-03-02 | 北京中讯四方科技股份有限公司 | 一种基于镂空反射电极结构的声表面波滤波器 |
CN107624221A (zh) * | 2015-05-08 | 2018-01-23 | 追踪有限公司 | 级联谐振器 |
CN107624221B (zh) * | 2015-05-08 | 2021-06-18 | 追踪有限公司 | 级联谐振器 |
CN109643989A (zh) * | 2016-09-02 | 2019-04-16 | 株式会社村田制作所 | 弹性波滤波器装置、高频前端电路以及通信装置 |
CN109643989B (zh) * | 2016-09-02 | 2023-03-21 | 株式会社村田制作所 | 弹性波滤波器装置、高频前端电路以及通信装置 |
Also Published As
Publication number | Publication date |
---|---|
JP4544157B2 (ja) | 2010-09-15 |
WO2005013481A1 (ja) | 2005-02-10 |
CN100511999C (zh) | 2009-07-08 |
JPWO2005013481A1 (ja) | 2006-09-28 |
US7482895B2 (en) | 2009-01-27 |
KR20060041296A (ko) | 2006-05-11 |
KR101044971B1 (ko) | 2011-06-29 |
US20070109075A1 (en) | 2007-05-17 |
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Legal Events
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C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
ASS | Succession or assignment of patent right |
Owner name: SKYWORKS PANASONIC FILTRATE SOLUTIONS JAPAN CO., L Free format text: FORMER OWNER: MATSUSHITA ELECTRIC INDUSTRIAL CO, LTD. Effective date: 20150202 |
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C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20150202 Address after: Osaka Japan Patentee after: PANASONIC CORPORATION Address before: Osaka Japan Patentee before: Matsushita Electric Industrial Co., Ltd. |
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C56 | Change in the name or address of the patentee | ||
CP01 | Change in the name or title of a patent holder |
Address after: Osaka Japan Patentee after: Japan Industrial Co., Ltd. Address before: Osaka Japan Patentee before: PANASONIC CORPORATION |