JPS555573A - Surface acoustic wave filter - Google Patents
Surface acoustic wave filterInfo
- Publication number
- JPS555573A JPS555573A JP7931878A JP7931878A JPS555573A JP S555573 A JPS555573 A JP S555573A JP 7931878 A JP7931878 A JP 7931878A JP 7931878 A JP7931878 A JP 7931878A JP S555573 A JPS555573 A JP S555573A
- Authority
- JP
- Japan
- Prior art keywords
- terminals
- transducers
- center
- acoustic wave
- surface acoustic
- 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
- H03H9/05—Holders; Supports
- H03H9/0538—Constructional combinations of supports or holders with electromechanical or other electronic elements
- H03H9/0542—Constructional combinations of supports or holders with electromechanical or other electronic elements consisting of a lateral arrangement
-
- 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
- H03H9/02818—Means for compensation or elimination of undesirable effects
- H03H9/02874—Means for compensation or elimination of undesirable effects of direct coupling between input and output transducers
-
- 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 (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7931878A JPS555573A (en) | 1978-06-29 | 1978-06-29 | Surface acoustic wave filter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7931878A JPS555573A (en) | 1978-06-29 | 1978-06-29 | Surface acoustic wave filter |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS555573A true JPS555573A (en) | 1980-01-16 |
Family
ID=13686512
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7931878A Pending JPS555573A (en) | 1978-06-29 | 1978-06-29 | Surface acoustic wave filter |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS555573A (ja) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60186109A (ja) * | 1984-03-06 | 1985-09-21 | Toshiba Corp | 弾性表面波共振子 |
JPS60246115A (ja) * | 1984-05-21 | 1985-12-05 | Murata Mfg Co Ltd | 表面波フイルタ |
JPS6145620A (ja) * | 1984-08-09 | 1986-03-05 | Mitsubishi Electric Corp | 遅延線 |
JPS6397920U (ja) * | 1986-12-15 | 1988-06-24 | ||
JP2003507917A (ja) * | 1999-08-16 | 2003-02-25 | エプコス アクチエンゲゼルシャフト | 改善された平衡性および場合によっては向上された阻止域抑圧を有するデュアルモード表面波フィルタ |
US6781478B2 (en) | 2000-06-26 | 2004-08-24 | Murata Manufacturing Co., Ltd. | Longitudinally coupled resonator type surface acoustic wave filter and communication apparatus incorporating the same |
US6815868B2 (en) | 2001-04-09 | 2004-11-09 | Murata Manufacturing Co., Ltd. | Surface acoustic wave apparatus and communication unit |
JPWO2008038498A1 (ja) * | 2006-09-28 | 2010-01-28 | 株式会社村田製作所 | バランス型弾性波フィルタ装置 |
-
1978
- 1978-06-29 JP JP7931878A patent/JPS555573A/ja active Pending
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60186109A (ja) * | 1984-03-06 | 1985-09-21 | Toshiba Corp | 弾性表面波共振子 |
JPS60246115A (ja) * | 1984-05-21 | 1985-12-05 | Murata Mfg Co Ltd | 表面波フイルタ |
JPS6145620A (ja) * | 1984-08-09 | 1986-03-05 | Mitsubishi Electric Corp | 遅延線 |
JPS6397920U (ja) * | 1986-12-15 | 1988-06-24 | ||
JP2003507917A (ja) * | 1999-08-16 | 2003-02-25 | エプコス アクチエンゲゼルシャフト | 改善された平衡性および場合によっては向上された阻止域抑圧を有するデュアルモード表面波フィルタ |
JP4739624B2 (ja) * | 1999-08-16 | 2011-08-03 | エプコス アクチエンゲゼルシャフト | 改善された平衡性および場合によっては向上された阻止域抑圧を有するデュアルモード表面波フィルタ |
US6781478B2 (en) | 2000-06-26 | 2004-08-24 | Murata Manufacturing Co., Ltd. | Longitudinally coupled resonator type surface acoustic wave filter and communication apparatus incorporating the same |
US7034639B2 (en) | 2000-06-26 | 2006-04-25 | Murata Manufacturing Co., Ltd. | Longitudinally coupled resonator type surface acoustic wave filter and communication apparatus incorporating the same |
US6815868B2 (en) | 2001-04-09 | 2004-11-09 | Murata Manufacturing Co., Ltd. | Surface acoustic wave apparatus and communication unit |
JPWO2008038498A1 (ja) * | 2006-09-28 | 2010-01-28 | 株式会社村田製作所 | バランス型弾性波フィルタ装置 |
JP4873010B2 (ja) * | 2006-09-28 | 2012-02-08 | 株式会社村田製作所 | バランス型弾性波フィルタ装置 |
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SMITH | Acoustic signal processing devices(surface wave transducer study)[Final Report, 1 May 1973- 30 Nov. 1974] |