JPH0377530U - - Google Patents
Info
- Publication number
- JPH0377530U JPH0377530U JP13826989U JP13826989U JPH0377530U JP H0377530 U JPH0377530 U JP H0377530U JP 13826989 U JP13826989 U JP 13826989U JP 13826989 U JP13826989 U JP 13826989U JP H0377530 U JPH0377530 U JP H0377530U
- Authority
- JP
- Japan
- Prior art keywords
- acoustic wave
- surface acoustic
- interdigitated electrodes
- capacitor
- coil
- 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
- 238000010897 surface acoustic wave method Methods 0.000 claims description 3
- 239000003990 capacitor Substances 0.000 claims description 2
- 239000000758 substrate Substances 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
Description
第１図ａ及びｂは本考案の実施例の結線図及び
特性図、第２図ａ及びｂは従来の弾性表面波多重
モードフイルタの結線図及び特性図である。
１１……圧電基板、１２，１５……交叉指状電
極、１３，１４，１６，１７……グレーテイング
反射器、１８，２０……コンデンサ、１９，２１
，３８，３９……コイル、２２……共通バス電極
。
1A and 1B are a wiring diagram and a characteristic diagram of an embodiment of the present invention, and FIGS. 2A and 2B are a wiring diagram and a characteristic diagram of a conventional surface acoustic wave multimode filter. 11... Piezoelectric substrate, 12, 15... Cross-finger electrode, 13, 14, 16, 17... Grating reflector, 18, 20... Capacitor, 19, 21
, 38, 39...coil, 22...common bus electrode.
Claims (1)
振子を弾性表面波の伝搬方向に直角に相隣接する
ように配置し、入力用及び出力用の前記交叉指状
電極の少なくとも一方に並列にコンデンサを接続
し更に直列にコイルを接続して整合回路を形成し
てあることを特徴とする弾性表面波多重モードフ
イルタ。 Resonators configured with interdigitated electrodes on a piezoelectric substrate are arranged adjacent to each other at right angles to the propagation direction of the surface acoustic wave, and are parallel to at least one of the interdigitated electrodes for input and output. A surface acoustic wave multimode filter characterized in that a matching circuit is formed by connecting a capacitor to and further connecting a coil in series.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13826989U JPH0377530U (en) | 1989-11-28 | 1989-11-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13826989U JPH0377530U (en) | 1989-11-28 | 1989-11-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0377530U true JPH0377530U (en) | 1991-08-05 |
Family
ID=31685379
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13826989U Pending JPH0377530U (en) | 1989-11-28 | 1989-11-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0377530U (en) |
-
1989
- 1989-11-28 JP JP13826989U patent/JPH0377530U/ja active Pending