JPS6412710A - Surface acoustic wave element - Google Patents
Surface acoustic wave elementInfo
- Publication number
- JPS6412710A JPS6412710A JP16933887A JP16933887A JPS6412710A JP S6412710 A JPS6412710 A JP S6412710A JP 16933887 A JP16933887 A JP 16933887A JP 16933887 A JP16933887 A JP 16933887A JP S6412710 A JPS6412710 A JP S6412710A
- Authority
- JP
- Japan
- Prior art keywords
- electrode group
- acoustic wave
- surface acoustic
- electrodes
- wave element
- 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
Landscapes
- Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
Abstract
PURPOSE:To obtain a surface acoustic wave element with high excitation efficiency, by setting the thickness of a transparent piezoelectric film arranged at least on either side in an upper or a lower electrode group for exciting a surface acoustic wave inversely proportinal to a central frequency, and making it thin gradually advancing in a side direction. CONSTITUTION:The electrode group 3 is arranged obliquely so that plural electrodes 31, 32, and 33 whose exciting central frequencies are set differently from each other gradually can satisfy a Bragg condition, thereby, the electrode group 3 can be made into a wide band area. The piezoelectric film 1 arranged on the electrode group 3 is set so that the maximum SAW excitation efficiency in each central frequency of its lower electrodes 31, 32, and 33 can be maximized, and the piezoelectric films 11, 12, and 13 arranged on the electrodes 31, 32, and 33 sequentially are formed so as to be thinned in order.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16933887A JPS6412710A (en) | 1987-07-07 | 1987-07-07 | Surface acoustic wave element |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16933887A JPS6412710A (en) | 1987-07-07 | 1987-07-07 | Surface acoustic wave element |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6412710A true JPS6412710A (en) | 1989-01-17 |
Family
ID=15884706
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16933887A Pending JPS6412710A (en) | 1987-07-07 | 1987-07-07 | Surface acoustic wave element |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6412710A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2005003847A1 (en) * | 2003-07-07 | 2005-01-13 | Murata Manufacturing Co., Ltd. | Acoustooptic filter |
JP2005267621A (en) * | 2004-02-16 | 2005-09-29 | Fuji Xerox Co Ltd | Radio response device and radio response communication system |
-
1987
- 1987-07-07 JP JP16933887A patent/JPS6412710A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2005003847A1 (en) * | 2003-07-07 | 2005-01-13 | Murata Manufacturing Co., Ltd. | Acoustooptic filter |
JP2005267621A (en) * | 2004-02-16 | 2005-09-29 | Fuji Xerox Co Ltd | Radio response device and radio response communication system |
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