CN1604469A - 表面声波器件 - Google Patents
表面声波器件 Download PDFInfo
- Publication number
- CN1604469A CN1604469A CNA2004100834283A CN200410083428A CN1604469A CN 1604469 A CN1604469 A CN 1604469A CN A2004100834283 A CNA2004100834283 A CN A2004100834283A CN 200410083428 A CN200410083428 A CN 200410083428A CN 1604469 A CN1604469 A CN 1604469A
- Authority
- CN
- China
- Prior art keywords
- pattern
- electrode
- acoustic wave
- surface acoustic
- wave device
- 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
Links
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
- H03H9/6489—Compensation of undesirable effects
- H03H9/6493—Side lobe suppression
-
- 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
- H03H9/0023—Balance-unbalance or balance-balance networks
- H03H9/0028—Balance-unbalance or balance-balance networks using surface acoustic wave devices
- H03H9/0033—Balance-unbalance or balance-balance networks using surface acoustic wave devices having one acoustic track only
- H03H9/0042—Balance-unbalance or balance-balance networks using surface acoustic wave devices having one acoustic track only the balanced terminals being on opposite sides of the track
-
- 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
- H03H9/02779—Continuous surface reflective arrays
-
- 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
- H03H9/02—Details
- H03H9/125—Driving means, e.g. electrodes, coils
- H03H9/145—Driving means, e.g. electrodes, coils for networks using surface acoustic waves
- H03H9/14517—Means for weighting
- H03H9/1452—Means for weighting by finger overlap length, apodisation
Abstract
Description
Claims (18)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003343856 | 2003-10-01 | ||
JP2003-343856 | 2003-10-01 | ||
JP2003343856A JP4184220B2 (ja) | 2003-10-01 | 2003-10-01 | 弾性表面波デバイス |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1604469A true CN1604469A (zh) | 2005-04-06 |
CN100426668C CN100426668C (zh) | 2008-10-15 |
Family
ID=34537657
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB2004100834283A Expired - Fee Related CN100426668C (zh) | 2003-10-01 | 2004-10-08 | 表面声波器件 |
Country Status (5)
Country | Link |
---|---|
US (1) | US7462973B2 (zh) |
JP (1) | JP4184220B2 (zh) |
KR (1) | KR100607635B1 (zh) |
CN (1) | CN100426668C (zh) |
SG (1) | SG110212A1 (zh) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102638244A (zh) * | 2011-02-08 | 2012-08-15 | 太阳诱电株式会社 | 声波器件和滤波器 |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9170686B2 (en) * | 2013-01-10 | 2015-10-27 | Elo Touch Solutions, Inc. | Multi-transducer waveguide arrays |
US10833649B2 (en) * | 2016-04-27 | 2020-11-10 | Kyocera Corporation | Acoustic wave element and communication apparatus |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5725714A (en) | 1980-07-23 | 1982-02-10 | Oki Electric Ind Co Ltd | Elastic surface wave converter |
JPS5843608A (ja) | 1981-09-09 | 1983-03-14 | Fujitsu Ltd | 振巾等化器 |
JPS58191513A (ja) | 1982-05-06 | 1983-11-08 | Toshiba Corp | 弾性表面波素子 |
JPS59125113A (ja) | 1983-01-06 | 1984-07-19 | Oki Electric Ind Co Ltd | 表面弾性波変換器 |
CA1254994A (en) * | 1985-03-29 | 1989-05-30 | Mark S. Suthers | Saw devices with reflection-suppressing fingers |
JP2606708B2 (ja) * | 1987-11-17 | 1997-05-07 | 日本無線株式会社 | 弾性表面波フィルタ |
JPH04810A (ja) * | 1990-04-17 | 1992-01-06 | Fujitsu Ltd | 弾性表面波フィルタ |
KR920019067A (ko) * | 1991-03-30 | 1992-10-22 | 황선두 | 탄성표면파 소자의 전극 제작방법 |
JP3139065B2 (ja) * | 1991-08-23 | 2001-02-26 | 日本電気株式会社 | 弾性表面波共振子 |
JPH09130195A (ja) * | 1995-10-26 | 1997-05-16 | Tokimec Inc | 弾性表面波変換器及び弾性表面波反射器 |
JP3266804B2 (ja) | 1996-07-23 | 2002-03-18 | 株式会社日立製作所 | 弾性表面波素子 |
JP3330512B2 (ja) * | 1997-04-17 | 2002-09-30 | 株式会社日立製作所 | 弾性表面波素子 |
US6023122A (en) * | 1999-04-15 | 2000-02-08 | Nortel Networks Corporation | Surface wave devices with tapered transducers |
JP2001267877A (ja) * | 2000-03-21 | 2001-09-28 | Sanyo Electric Co Ltd | 弾性表面波デバイス |
KR100476913B1 (ko) * | 2000-06-27 | 2005-03-17 | 가부시끼가이샤 도시바 | 탄성표면파 소자 |
US6380828B1 (en) * | 2000-07-24 | 2002-04-30 | Nortel Networks Limited | Surface wave devices with static electric field |
US6856214B2 (en) * | 2002-12-10 | 2005-02-15 | Nortel Networks Limited | Surface wave devices with low passband ripple |
-
2003
- 2003-10-01 JP JP2003343856A patent/JP4184220B2/ja not_active Expired - Fee Related
-
2004
- 2004-09-30 KR KR1020040077686A patent/KR100607635B1/ko not_active IP Right Cessation
- 2004-09-30 SG SG200406146A patent/SG110212A1/en unknown
- 2004-10-01 US US10/954,662 patent/US7462973B2/en not_active Expired - Fee Related
- 2004-10-08 CN CNB2004100834283A patent/CN100426668C/zh not_active Expired - Fee Related
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102638244A (zh) * | 2011-02-08 | 2012-08-15 | 太阳诱电株式会社 | 声波器件和滤波器 |
US9013250B2 (en) | 2011-02-08 | 2015-04-21 | Taiyo Yuden Co., Ltd. | Acoustic wave device and filter |
Also Published As
Publication number | Publication date |
---|---|
SG110212A1 (en) | 2005-04-28 |
KR100607635B1 (ko) | 2006-08-02 |
CN100426668C (zh) | 2008-10-15 |
US20050093395A1 (en) | 2005-05-05 |
JP4184220B2 (ja) | 2008-11-19 |
KR20050032476A (ko) | 2005-04-07 |
US7462973B2 (en) | 2008-12-09 |
JP2005110142A (ja) | 2005-04-21 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
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: TAIYO YUDEN CO., LTD. Free format text: FORMER OWNER: FUJITSU MEDIA DEVICES LTD Effective date: 20101201 |
|
C41 | Transfer of patent application or patent right or utility model | ||
COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: KANAGAWA PREFECTURE, JAPAN TO: TOKYO, JAPAN |
|
TR01 | Transfer of patent right |
Effective date of registration: 20101201 Address after: Tokyo, Japan, Japan Patentee after: Taiyo Yuden Co., Ltd. Address before: Kanagawa Patentee before: Fujitsu Media Devices Ltd |
|
C17 | Cessation of patent right | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081015 Termination date: 20111008 |