JPH01212015A - Ｉｄｔ励振縦結合二重モード・フィルタ - Google Patents

Ｉｄｔ励振縦結合二重モード・フィルタ

Info

Publication number
JPH01212015A
JPH01212015A JP26681387A JP26681387A JPH01212015A JP H01212015 A JPH01212015 A JP H01212015A JP 26681387 A JP26681387 A JP 26681387A JP 26681387 A JP26681387 A JP 26681387A JP H01212015 A JPH01212015 A JP H01212015A
Authority
JP
Japan
Prior art keywords
idt
idts
filter
electrode finger
longitudinally coupled
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
Application number
JP26681387A
Other languages
English (en)
Japanese (ja)
Other versions
JPH053169B2 (enrdf_load_stackoverflow
Inventor
Masaki Tanaka
田中　昌喜
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toyo Communication Equipment Co Ltd
Original Assignee
Toyo Communication Equipment Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Toyo Communication Equipment Co Ltd filed Critical Toyo Communication Equipment Co Ltd
Priority to JP26681387A priority Critical patent/JPH01212015A/ja
Publication of JPH01212015A publication Critical patent/JPH01212015A/ja
Publication of JPH053169B2 publication Critical patent/JPH053169B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
JP26681387A 1987-10-22 1987-10-22 Ｉｄｔ励振縦結合二重モード・フィルタ Granted JPH01212015A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP26681387A JPH01212015A (ja) 1987-10-22 1987-10-22 Ｉｄｔ励振縦結合二重モード・フィルタ

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP26681387A JPH01212015A (ja) 1987-10-22 1987-10-22 Ｉｄｔ励振縦結合二重モード・フィルタ

Publications (2)

Publication Number Publication Date
JPH01212015A true JPH01212015A (ja) 1989-08-25
JPH053169B2 JPH053169B2 (enrdf_load_stackoverflow) 1993-01-14

Family

ID=17436028

Family Applications (1)

Application Number Title Priority Date Filing Date
JP26681387A Granted JPH01212015A (ja) 1987-10-22 1987-10-22 Ｉｄｔ励振縦結合二重モード・フィルタ

Country Status (1)

Country Link
JP (1) JPH01212015A (enrdf_load_stackoverflow)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04249907A (ja) * 1990-12-27 1992-09-04 Murata Mfg Co Ltd 弾性表面波フィルタ
JPH04249906A (ja) * 1990-12-27 1992-09-04 Murata Mfg Co Ltd 弾性表面波フィルタ
JPH05251988A (ja) * 1992-03-04 1993-09-28 Toyo Commun Equip Co Ltd 縦結合二重モードリーキーｓａｗフィルタ
JPH05267990A (ja) * 1991-08-21 1993-10-15 Toyo Commun Equip Co Ltd 縦結合二重モ−ドｓａｗフィルタ
WO2000013316A1 (fr) * 1998-08-28 2000-03-09 Seiko Epson Corporation Filtre d'ondes de surface a plusieurs modes longitudinaux
US6317015B1 (en) 1995-10-13 2001-11-13 Fujitsu Limited Surface acoustic wave device using a leaky surface acoustic wave with an optimized cut angle of a piezoelectric substrate
WO2006087875A1 (ja) * 2005-02-16 2006-08-24 Murata Manufacturing Co., Ltd. バランス型弾性波フィルタ装置
JPWO2007148510A1 (ja) * 2006-06-21 2009-11-19 株式会社村田製作所 弾性波フィルタ装置及びデュプレクサ
JP2013517725A (ja) * 2010-01-21 2013-05-16 エプコス アーゲー 阻止域における信号抑圧機能を向上させたｄｍｓフィルタ

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PROC 34TH APN FREG CONTROL SYMPOSIUM USAERADCDM FT MONMOUTH NJ 07703=1980 *
ULTRASONICS SYMPOSIUM=1979 *

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04249906A (ja) * 1990-12-27 1992-09-04 Murata Mfg Co Ltd 弾性表面波フィルタ
JPH04249907A (ja) * 1990-12-27 1992-09-04 Murata Mfg Co Ltd 弾性表面波フィルタ
JPH05267990A (ja) * 1991-08-21 1993-10-15 Toyo Commun Equip Co Ltd 縦結合二重モ−ドｓａｗフィルタ
JPH05251988A (ja) * 1992-03-04 1993-09-28 Toyo Commun Equip Co Ltd 縦結合二重モードリーキーｓａｗフィルタ
US6317015B1 (en) 1995-10-13 2001-11-13 Fujitsu Limited Surface acoustic wave device using a leaky surface acoustic wave with an optimized cut angle of a piezoelectric substrate
US6335667B1 (en) 1998-08-28 2002-01-01 Seiko Epson Corporation Multi-longitudinal mode coupled saw filter
WO2000013316A1 (fr) * 1998-08-28 2000-03-09 Seiko Epson Corporation Filtre d'ondes de surface a plusieurs modes longitudinaux
WO2006087875A1 (ja) * 2005-02-16 2006-08-24 Murata Manufacturing Co., Ltd. バランス型弾性波フィルタ装置
US7330089B2 (en) 2005-02-16 2008-02-12 Murata Manufacturing Co., Ltd. Balanced acoustic wave filter device
JPWO2006087875A1 (ja) * 2005-02-16 2008-07-03 株式会社村田製作所 バランス型弾性波フィルタ装置
JPWO2007148510A1 (ja) * 2006-06-21 2009-11-19 株式会社村田製作所 弾性波フィルタ装置及びデュプレクサ
JP4735717B2 (ja) * 2006-06-21 2011-07-27 株式会社村田製作所 弾性波フィルタ装置及びデュプレクサ
JP2013517725A (ja) * 2010-01-21 2013-05-16 エプコス アーゲー 阻止域における信号抑圧機能を向上させたｄｍｓフィルタ
US9178490B2 (en) 2010-01-21 2015-11-03 Epcos Ag DMS filter having improved signal suppression in the stop band

Also Published As

Publication number Publication date
JPH053169B2 (enrdf_load_stackoverflow) 1993-01-14

Similar Documents

Publication Publication Date Title
US7135805B2 (en) Surface acoustic wave transducer
JPH06260876A (ja) 弾性表面波フィルタ
JPH07307640A (ja) 弾性表面波デバイス
JP4100249B2 (ja) 弾性表面波装置、通信機
EP0734120A1 (en) Surface acoustic wave resonator filter
JPH01212015A (ja) Ｉｄｔ励振縦結合二重モード・フィルタ
CN118764007B (zh) 一种弹性波谐振器及弹性波滤波器装置
JPH0351330B2 (enrdf_load_stackoverflow)
KR20200126420A (ko) Saw 필터 장치의 소스 억제를 위한 변환기 구조물
EP0869608B1 (en) Surface acoustic wave device
JP3476151B2 (ja) 縦型３重モードｓａｗフィルタ
JPH0766668A (ja) 弾性表面波装置
EP1480338B1 (en) Surface acoustic wave device
JP3107392B2 (ja) 縦結合二重モードリーキーｓａｗフィルタ
JPH04373304A (ja) 弾性表面波フィルタ
US20030011279A1 (en) Transversally coupled resonator filter
JP2000349590A (ja) 弾性表面波フィルタ
JPH08204502A (ja) 縦型複合４重モードｓａｗフィルタ
JPH05129884A (ja) 多段接続多重モードフイルタ
JP3291860B2 (ja) 縦型二重モード弾性表面波フィルタ
JP2004260402A (ja) 弾性表面波装置およびそれを有する通信装置
JPH077370A (ja) 多段接続弾性表面波多重モードフィルタ
WO1998027647A1 (en) Surface wave device filters using resonant single phase unidirectional transducers
JPH05267976A (ja) 弾性表面波素子
JPH1065491A (ja) Ｉｄｔ励振二重モードフィルタ