JPS6115828U - surface acoustic wave filter - Google Patents
surface acoustic wave filterInfo
- Publication number
- JPS6115828U JPS6115828U JP9969584U JP9969584U JPS6115828U JP S6115828 U JPS6115828 U JP S6115828U JP 9969584 U JP9969584 U JP 9969584U JP 9969584 U JP9969584 U JP 9969584U JP S6115828 U JPS6115828 U JP S6115828U
- Authority
- JP
- Japan
- Prior art keywords
- surface acoustic
- acoustic wave
- electrodes
- wave filter
- transducer
- 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
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【図面の簡単な説明】
第１図は本考−案の一実施例を示す構成図、第２図は本
考案の他の実施例を示す構成図、第３図は従来の弾性表
面波フィルタを示す構成図である。
１１，２１，３１・・・電気入力（出力）端子、１２，
２２，３２・・・電気出力（入力）端子、１３，１４，
２３， ２４， ３３・・・電気入力（出力）弾性表
面波変換器、１５，２５，３４・・・電気出力（入力）
弾性表面波変換器、１６．２６・・・弾性表面波反射器
、１７，１８，１９，２７，２Ｂ，２９．３５・・・弾
性表面波。[Brief Description of the Drawings] Fig. 1 is a block diagram showing one embodiment of the present invention, Fig. 2 is a block diagram showing another embodiment of the present invention, and Fig. 3 is a conventional surface acoustic wave filter. FIG. 11, 21, 31... Electrical input (output) terminal, 12,
22, 32... electrical output (input) terminal, 13, 14,
23, 24, 33... Electrical input (output) surface acoustic wave transducer, 15, 25, 34... Electrical output (input)
Surface acoustic wave converter, 16.26... Surface acoustic wave reflector, 17, 18, 19, 27, 2B, 29.35... Surface acoustic wave.
Claims (1)
変換する複数の電極本数を有する弾性表面波変換器と、
弾性表面波を反射させる複数の電極本数を有する弾性表
面波反射器とを圧電基板上に設けた弾性表面波フィルタ
において、最外側にある前記弾性表面波変換器の電極本
数をその他の弾性表面波変換器の電極本数より少なくし
、少な′くとした電極木数分を前記弾性表面波反射面の
電極本数に加算したことを特徴とする弾性表面波フィル
タ。A surface acoustic wave transducer having a plurality of electrodes that converts an electrical signal into a surface acoustic wave and a surface acoustic wave into an electrical signal;
In a surface acoustic wave filter in which a surface acoustic wave reflector having a plurality of electrodes for reflecting surface acoustic waves is provided on a piezoelectric substrate, the number of electrodes of the outermost surface acoustic wave transducer is set to a surface acoustic wave reflector having a plurality of electrodes for reflecting surface acoustic waves. A surface acoustic wave filter characterized in that the number of electrodes is smaller than that of a transducer, and the reduced number of electrodes is added to the number of electrodes of the surface acoustic wave reflecting surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9969584U JPS6115828U (en) | 1984-07-03 | 1984-07-03 | surface acoustic wave filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9969584U JPS6115828U (en) | 1984-07-03 | 1984-07-03 | surface acoustic wave filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6115828U true JPS6115828U (en) | 1986-01-29 |
Family
ID=30659186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9969584U Pending JPS6115828U (en) | 1984-07-03 | 1984-07-03 | surface acoustic wave filter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6115828U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58154917A (en) * | 1982-03-10 | 1983-09-14 | Hitachi Ltd | Band pass filter of surface acoustic wave |
-
1984
- 1984-07-03 JP JP9969584U patent/JPS6115828U/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58154917A (en) * | 1982-03-10 | 1983-09-14 | Hitachi Ltd | Band pass filter of surface acoustic wave |
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