JPH02137122U - - Google Patents
Info
- Publication number
- JPH02137122U JPH02137122U JP4531689U JP4531689U JPH02137122U JP H02137122 U JPH02137122 U JP H02137122U JP 4531689 U JP4531689 U JP 4531689U JP 4531689 U JP4531689 U JP 4531689U JP H02137122 U JPH02137122 U JP H02137122U
- Authority
- JP
- Japan
- Prior art keywords
- piezoelectric part
- notch
- ceramic filter
- utility
- scope
- 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
- 239000000919 ceramic Substances 0.000 claims description 6
- 239000000758 substrate Substances 0.000 claims description 2
- 239000003990 capacitor Substances 0.000 description 1
Landscapes
- Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
Description
第１図は本考案の一実施例のセラミツク・フイ
ルタの表面の平面図、第２図は第１図のセラミツ
ク・フイルタの裏面の平面図、第３図は第１図の
等価回路、第４図、第５図はそれぞれ従来のセラ
ミツク・フイルタの表面、裏面を示す平面図であ
る。
１１……振動子、１２，１２′，１２″，２２
，２２′，２２″……コンデンサ、１３，２３…
…セラミツク基板、１４……切り込み、２１……
電極。
FIG. 1 is a plan view of the front surface of a ceramic filter according to an embodiment of the present invention, FIG. 2 is a plan view of the back surface of the ceramic filter of FIG. 1, FIG. 3 is an equivalent circuit of FIG. 1, and FIG. 5 are plan views showing the front and back surfaces of a conventional ceramic filter, respectively. 11... Vibrator, 12, 12', 12'', 22
, 22', 22''... Capacitor, 13, 23...
... Ceramic substrate, 14 ... Notch, 21 ...
electrode.
Claims (1)
記圧電性を有しない部分とを、機械的に分離する
切り込みを設け、前記圧電性を有する部分が自由
に振動しうるようになしたことを特徴とするセラ
ミツク・フイルタ。 A notch is provided to mechanically separate the piezoelectric part and the non-piezoelectric part of the ceramic substrate, so that the piezoelectric part can freely vibrate. Ceramic filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4531689U JPH02137122U (en) | 1989-04-17 | 1989-04-17 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4531689U JPH02137122U (en) | 1989-04-17 | 1989-04-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02137122U true JPH02137122U (en) | 1990-11-15 |
Family
ID=31559380
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4531689U Pending JPH02137122U (en) | 1989-04-17 | 1989-04-17 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02137122U (en) |
-
1989
- 1989-04-17 JP JP4531689U patent/JPH02137122U/ja active Pending