DE60238373D1 - Akustisches Oberflächenwellenfilter - Google Patents
Akustisches OberflächenwellenfilterInfo
- Publication number
- DE60238373D1 DE60238373D1 DE60238373T DE60238373T DE60238373D1 DE 60238373 D1 DE60238373 D1 DE 60238373D1 DE 60238373 T DE60238373 T DE 60238373T DE 60238373 T DE60238373 T DE 60238373T DE 60238373 D1 DE60238373 D1 DE 60238373D1
- Authority
- DE
- Germany
- Prior art keywords
- wave filter
- surface wave
- acoustic surface
- acoustic
- filter
- 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.)
- Expired - Lifetime
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
- H03H9/46—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
- H03H9/0023—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
- H03H9/0023—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
- H03H9/0038—Balance-unbalance or balance-balance networks using surface acoustic wave devices having one acoustic track only the balanced terminals being on the same side 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
- H03H9/0023—Balance-unbalance or balance-balance networks
- H03H9/0028—Balance-unbalance or balance-balance networks using surface acoustic wave devices
- H03H9/0047—Balance-unbalance or balance-balance networks using surface acoustic wave devices having two acoustic tracks
- H03H9/0066—Balance-unbalance or balance-balance networks using surface acoustic wave devices having two acoustic tracks being electrically parallel
- H03H9/0071—Balance-unbalance or balance-balance networks using surface acoustic wave devices having two acoustic tracks being electrically parallel the balanced terminals being on the same side of the tracks
-
- 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
- H03H9/46—Filters
- H03H9/64—Filters using surface acoustic waves
- H03H9/6423—Means for obtaining a particular transfer characteristic
- H03H9/6433—Coupled resonator filters
- H03H9/6436—Coupled resonator filters having one acoustic track only
Landscapes
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001177329 | 2001-06-12 | ||
| JP2002114934A JP3873802B2 (ja) | 2001-06-12 | 2002-04-17 | 弾性表面波フィルタ |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE60238373D1 true DE60238373D1 (de) | 2011-01-05 |
Family
ID=26616774
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE60238373T Expired - Lifetime DE60238373D1 (de) | 2001-06-12 | 2002-06-12 | Akustisches Oberflächenwellenfilter |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US6700460B2 (de) |
| EP (1) | EP1267489B1 (de) |
| JP (1) | JP3873802B2 (de) |
| KR (1) | KR100475995B1 (de) |
| CN (1) | CN1251406C (de) |
| DE (1) | DE60238373D1 (de) |
| TW (1) | TWI271925B (de) |
Families Citing this family (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003289234A (ja) * | 2002-01-28 | 2003-10-10 | Murata Mfg Co Ltd | 弾性表面波装置、通信装置 |
| JP3985717B2 (ja) * | 2003-04-10 | 2007-10-03 | 株式会社村田製作所 | 弾性表面波装置およびそれを用いた通信装置 |
| US7095295B1 (en) * | 2003-05-21 | 2006-08-22 | Sandia Corporation | Multi-tunable microelectromechanical system (MEMS) resonators |
| JP2005244669A (ja) | 2004-02-26 | 2005-09-08 | Fujitsu Media Device Kk | 弾性表面波装置 |
| DE102004031397A1 (de) * | 2004-06-29 | 2006-01-26 | Epcos Ag | Duplexer |
| JP4504278B2 (ja) * | 2004-08-04 | 2010-07-14 | パナソニック株式会社 | アンテナ共用器、ならびに、それを用いた高周波モジュールおよび通信機器 |
| US7446629B2 (en) | 2004-08-04 | 2008-11-04 | Matsushita Electric Industrial Co., Ltd. | Antenna duplexer, and RF module and communication apparatus using the same |
| JP4541853B2 (ja) * | 2004-11-25 | 2010-09-08 | 日本電波工業株式会社 | アンテナ分波器およびアンテナ分波器用表面弾性波フィルタ |
| DE102006010752B4 (de) * | 2006-03-08 | 2013-10-31 | Epcos Ag | DMS-Filter mit verschalteten Resonatoren |
| JP4465625B2 (ja) * | 2006-09-29 | 2010-05-19 | Ｔｄｋ株式会社 | 弾性表面波フィルタおよび弾性表面波共振器 |
| JP5135763B2 (ja) * | 2006-11-01 | 2013-02-06 | 株式会社村田製作所 | 弾性表面波フィルタ装置及びデュプレクサ |
| KR101232242B1 (ko) * | 2008-11-04 | 2013-02-12 | 가부시키가이샤 무라타 세이사쿠쇼 | 탄성파 필터장치 및 그것을 포함하는 모듈 |
| CN107871053B (zh) * | 2017-12-15 | 2021-03-30 | 北京航天微电科技有限公司 | 一种声表面波滤波器仿真方法及装置 |
| CN108418566A (zh) * | 2018-03-16 | 2018-08-17 | 无锡市好达电子有限公司 | 一种声表面波滤波器 |
| CN109787580B (zh) * | 2019-01-17 | 2020-12-04 | 成都频岢微电子有限公司 | 一种高品质因素的saw谐振器及其构成的saw滤波器 |
| CN112683975A (zh) * | 2020-12-18 | 2021-04-20 | 天津理工大学 | 叉指型微电极阵列电化学传感器及制备方法与应用、专用测试盒 |
| CN114938217A (zh) * | 2022-05-12 | 2022-08-23 | 安徽安努奇科技有限公司 | 一种声表面波滤波器及多工器 |
| CN115955212B (zh) * | 2023-03-14 | 2023-06-16 | 阿尔伯达(苏州)科技有限公司 | 一种扩大带宽的saw滤波器 |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01314008A (ja) * | 1988-06-13 | 1989-12-19 | Ngk Spark Plug Co Ltd | 梯子型圧電フィルタ |
| JP3160023B2 (ja) | 1991-08-21 | 2001-04-23 | 東洋通信機株式会社 | 縦結合二重モードｓａｗフィルタ |
| JP3189508B2 (ja) | 1993-07-08 | 2001-07-16 | 株式会社村田製作所 | 弾性表面波フィルタ |
| JP3139225B2 (ja) * | 1993-07-08 | 2001-02-26 | 株式会社村田製作所 | 弾性表面波フィルタ |
| JP3424971B2 (ja) * | 1994-01-20 | 2003-07-07 | 松下電器産業株式会社 | 弾性表面波フィルタ |
| WO1997006652A1 (fr) * | 1995-08-03 | 1997-02-20 | Kabushiki Kaisha Seta Giken | Dispositif de chauffage par induction electromagnetique et son fonctionnement |
| JP3243976B2 (ja) | 1995-08-14 | 2002-01-07 | 株式会社村田製作所 | 弾性表面波フィルタ |
| JP3478447B2 (ja) * | 1995-12-01 | 2003-12-15 | キンセキ株式会社 | 弾性表面波装置 |
| JP3839866B2 (ja) * | 1996-04-24 | 2006-11-01 | 株式会社東芝 | 弾性表面波フィルタおよび通過周波数帯域の形成方法 |
| JP3728912B2 (ja) | 1998-02-17 | 2005-12-21 | 株式会社村田製作所 | 弾性表面波フィルタ |
| US6137380A (en) | 1996-08-14 | 2000-10-24 | Murata Manufacturing, Co., Ltd | Surface acoustic wave filter utilizing a particularly placed spurious component of a parallel resonator |
| JPH10261936A (ja) * | 1997-03-19 | 1998-09-29 | Mitsubishi Electric Corp | 弾性表面波フィルタ |
| JP3255128B2 (ja) * | 1998-11-24 | 2002-02-12 | 株式会社村田製作所 | 弾性表面波フィルタ |
| WO2000067374A1 (fr) * | 1999-04-28 | 2000-11-09 | Seiko Epson Corporation | Filtre saw transversal en mode double |
| JP3387469B2 (ja) * | 2000-01-18 | 2003-03-17 | 株式会社村田製作所 | 弾性表面波装置及び弾性表面波フィルタ |
-
2002
- 2002-04-17 JP JP2002114934A patent/JP3873802B2/ja not_active Expired - Fee Related
- 2002-05-31 TW TW091111730A patent/TWI271925B/zh not_active IP Right Cessation
- 2002-06-12 KR KR10-2002-0032803A patent/KR100475995B1/ko active IP Right Grant
- 2002-06-12 US US10/167,853 patent/US6700460B2/en not_active Expired - Lifetime
- 2002-06-12 EP EP02254097A patent/EP1267489B1/de not_active Expired - Lifetime
- 2002-06-12 CN CNB02124359XA patent/CN1251406C/zh not_active Expired - Lifetime
- 2002-06-12 DE DE60238373T patent/DE60238373D1/de not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| EP1267489A2 (de) | 2002-12-18 |
| KR100475995B1 (ko) | 2005-03-10 |
| CN1391343A (zh) | 2003-01-15 |
| US6700460B2 (en) | 2004-03-02 |
| CN1251406C (zh) | 2006-04-12 |
| US20020190816A1 (en) | 2002-12-19 |
| TWI271925B (en) | 2007-01-21 |
| EP1267489A3 (de) | 2009-01-07 |
| JP3873802B2 (ja) | 2007-01-31 |
| EP1267489B1 (de) | 2010-11-24 |
| KR20020094911A (ko) | 2002-12-18 |
| JP2003069385A (ja) | 2003-03-07 |
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