JPH0165516U - - Google Patents
Info
- Publication number
- JPH0165516U JPH0165516U JP1987160114U JP16011487U JPH0165516U JP H0165516 U JPH0165516 U JP H0165516U JP 1987160114 U JP1987160114 U JP 1987160114U JP 16011487 U JP16011487 U JP 16011487U JP H0165516 U JPH0165516 U JP H0165516U
- Authority
- JP
- Japan
- Prior art keywords
- transducer
- output transducer
- acoustic wave
- surface acoustic
- wave filter
- 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 4
- 239000000758 substrate Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
Description
第１図は本考案の弾性表面波フイルタの一実施
例の電極パターン図、第２図はその入出力トラン
スジユーサと弾性表面波との位置関係の説明図、
第３図は本考案の他の実施例の電極パターン図、
第４図はこの実施例に関する第２図と同様の図で
ある。
２……入力トランスジユーサ、３……出力トラ
ンスジユーサ、Ｃ……電極ピツチ。
FIG. 1 is an electrode pattern diagram of an embodiment of the surface acoustic wave filter of the present invention, and FIG. 2 is an explanatory diagram of the positional relationship between the input/output transducer and the surface acoustic wave.
FIG. 3 is an electrode pattern diagram of another embodiment of the present invention;
FIG. 4 is a diagram similar to FIG. 2 regarding this embodiment. 2...Input transducer, 3...Output transducer, C...Electrode pitch.
Claims (1)
もつアポダイズド型入力トランスジユーサと正規
型の出力トランスジユーサとが並設された弾性表
面波フイルタに於いて、前記入力トランスジユー
サの最後端から前記出力トランスジユーサの最前
端までの距離を上記電極ピツチの自然数倍になる
ように選定したことを特徴とする弾性表面波フイ
ルタ。 In a surface acoustic wave filter in which an apodized input transducer and a regular output transducer having the same electrode pitch in the direction of the propagation axis of the piezoelectric substrate are arranged side by side, the rearmost end of the input transducer 1. A surface acoustic wave filter, wherein the distance from the front end of the output transducer to the front end of the output transducer is selected to be a natural number multiple of the electrode pitch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987160114U JPH0165516U (en) | 1987-10-20 | 1987-10-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987160114U JPH0165516U (en) | 1987-10-20 | 1987-10-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0165516U true JPH0165516U (en) | 1989-04-26 |
Family
ID=31441895
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987160114U Pending JPH0165516U (en) | 1987-10-20 | 1987-10-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0165516U (en) |
-
1987
- 1987-10-20 JP JP1987160114U patent/JPH0165516U/ja active Pending
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