JPS6219088B2 - - Google Patents
Info
- Publication number
- JPS6219088B2 JPS6219088B2 JP1481979A JP1481979A JPS6219088B2 JP S6219088 B2 JPS6219088 B2 JP S6219088B2 JP 1481979 A JP1481979 A JP 1481979A JP 1481979 A JP1481979 A JP 1481979A JP S6219088 B2 JPS6219088 B2 JP S6219088B2
- Authority
- JP
- Japan
- Prior art keywords
- transducer
- attenuation
- zero
- divided
- source
- 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
Links
- 238000010897 surface acoustic wave method Methods 0.000 claims description 5
- 230000010355 oscillation Effects 0.000 description 15
- 230000006866 deterioration Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
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
- H03H9/02—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
- H03H9/1455—Transducers of particular shape or position constituted of N parallel or series transducers
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 |
---|---|---|---|
JP1481979A JPS55107319A (en) | 1979-02-09 | 1979-02-09 | Surface acoustic wave filter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1481979A JPS55107319A (en) | 1979-02-09 | 1979-02-09 | Surface acoustic wave filter |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55107319A JPS55107319A (en) | 1980-08-18 |
JPS6219088B2 true JPS6219088B2 (US20080094685A1-20080424-C00004.png) | 1987-04-27 |
Family
ID=11871642
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1481979A Granted JPS55107319A (en) | 1979-02-09 | 1979-02-09 | Surface acoustic wave filter |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55107319A (US20080094685A1-20080424-C00004.png) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5585770A (en) * | 1993-06-30 | 1996-12-17 | Motorola, Inc. | Three terminal surface acoustic wave (SAW) device |
US6348845B2 (en) | 1996-05-23 | 2002-02-19 | Matsushita Electric Industrial Co., Ltd. | Surface acoustic wave filter and multistage surface acoustic wave filter |
US6801100B2 (en) | 1996-05-23 | 2004-10-05 | Matsushita Electric Industrial Co., Ltd. | Inter-digital transducer, surface acoustic wave filter and communication apparatus using the same |
EP0921636B1 (en) * | 1996-05-23 | 2007-04-04 | Matsushita Electric Industrial Co., Ltd. | Surface acoustic wave filter and multistage surface acoustic wave filter |
-
1979
- 1979-02-09 JP JP1481979A patent/JPS55107319A/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS55107319A (en) | 1980-08-18 |
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