JPS5647116A - Surface elastic wave device - Google Patents
Surface elastic wave deviceInfo
- Publication number
- JPS5647116A JPS5647116A JP12334379A JP12334379A JPS5647116A JP S5647116 A JPS5647116 A JP S5647116A JP 12334379 A JP12334379 A JP 12334379A JP 12334379 A JP12334379 A JP 12334379A JP S5647116 A JPS5647116 A JP S5647116A
- Authority
- JP
- Japan
- Prior art keywords
- elastic wave
- surface elastic
- transducer
- wave device
- input
- 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.)
- Pending
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
- H03H9/02—Details
- H03H9/125—Driving means, e.g. electrodes, coils
- H03H9/145—Driving means, e.g. electrodes, coils for networks using surface acoustic waves
- H03H9/14597—Matching SAW transducers to external electrical circuits
Landscapes
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12334379A JPS5647116A (en) | 1979-09-25 | 1979-09-25 | Surface elastic wave device |
US06/188,226 US4295108A (en) | 1979-09-25 | 1980-09-17 | Filter circuit employing surface acoustic wave device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12334379A JPS5647116A (en) | 1979-09-25 | 1979-09-25 | Surface elastic wave device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5647116A true JPS5647116A (en) | 1981-04-28 |
Family
ID=14858207
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12334379A Pending JPS5647116A (en) | 1979-09-25 | 1979-09-25 | Surface elastic wave device |
Country Status (2)
Country | Link |
---|---|
US (1) | US4295108A (ja) |
JP (1) | JPS5647116A (ja) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01170211A (ja) * | 1987-12-25 | 1989-07-05 | Mitsubishi Electric Corp | 周波数弁別装置 |
JPH01290308A (ja) * | 1988-05-17 | 1989-11-22 | Mitsubishi Electric Corp | フィルタバンク |
WO2000030253A1 (en) * | 1998-11-18 | 2000-05-25 | Cts Corporation | Notch filter incorporating saw devices and a delay line |
US6424238B1 (en) * | 2001-01-08 | 2002-07-23 | Motorola, Inc. | Acoustic wave filter and method of forming the same |
JP2008005277A (ja) * | 2006-06-23 | 2008-01-10 | Kyocera Kinseki Corp | ローパスフィルタ |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0127738B1 (de) * | 1983-05-17 | 1987-09-09 | Contraves Ag | Visier in Periskopbauart |
JPH0426211A (ja) * | 1990-05-21 | 1992-01-29 | Murata Mfg Co Ltd | 表面波装置 |
FI88565C (fi) * | 1990-07-06 | 1993-05-25 | Lk Products Oy | Foerfarande foer att foerbaettra spaerrdaempning av ett radiofrekvensfilter |
USRE40036E1 (en) | 1991-10-28 | 2008-01-29 | Fujitsu Limited | Surface acoustic wave filter |
JP2800905B2 (ja) | 1991-10-28 | 1998-09-21 | 富士通株式会社 | 弾性表面波フィルタ |
US5499002A (en) * | 1994-04-28 | 1996-03-12 | Kinsman; Robert G. | Resonator filter utilizing cascaded impedance inverters |
US6472959B1 (en) | 1999-03-11 | 2002-10-29 | Nortel Networks Limited | Longitudinally coupled double mode resonator filters using shallow bulk acoustic waves |
US6809611B2 (en) * | 2001-10-01 | 2004-10-26 | Matsushita Electric Industrial Co., Ltd. | Composite filter, antenna duplexer, and communication apparatus |
JP4056798B2 (ja) * | 2002-06-06 | 2008-03-05 | 沖電気工業株式会社 | 弾性表面波フィルタ |
CN117375573B (zh) * | 2023-12-07 | 2024-04-12 | 华南理工大学 | 无反射声波滤波器单元、无反射声波滤波器及制作方法 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2610183A1 (de) * | 1975-03-12 | 1976-09-23 | Murata Manufacturing Co | Wellenfilter mit akustischer oberflaechenleitung |
-
1979
- 1979-09-25 JP JP12334379A patent/JPS5647116A/ja active Pending
-
1980
- 1980-09-17 US US06/188,226 patent/US4295108A/en not_active Expired - Lifetime
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01170211A (ja) * | 1987-12-25 | 1989-07-05 | Mitsubishi Electric Corp | 周波数弁別装置 |
JPH01290308A (ja) * | 1988-05-17 | 1989-11-22 | Mitsubishi Electric Corp | フィルタバンク |
WO2000030253A1 (en) * | 1998-11-18 | 2000-05-25 | Cts Corporation | Notch filter incorporating saw devices and a delay line |
US6201457B1 (en) * | 1998-11-18 | 2001-03-13 | Cts Corporation | Notch filter incorporating saw devices and a delay line |
US6424238B1 (en) * | 2001-01-08 | 2002-07-23 | Motorola, Inc. | Acoustic wave filter and method of forming the same |
JP2008005277A (ja) * | 2006-06-23 | 2008-01-10 | Kyocera Kinseki Corp | ローパスフィルタ |
Also Published As
Publication number | Publication date |
---|---|
US4295108A (en) | 1981-10-13 |
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