JPH02831U - - Google Patents
Info
- Publication number
- JPH02831U JPH02831U JP7866888U JP7866888U JPH02831U JP H02831 U JPH02831 U JP H02831U JP 7866888 U JP7866888 U JP 7866888U JP 7866888 U JP7866888 U JP 7866888U JP H02831 U JPH02831 U JP H02831U
- Authority
- JP
- Japan
- Prior art keywords
- terminal
- electrode
- capacitor connection
- piezoelectric ceramic
- ground
- 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
- 239000003990 capacitor Substances 0.000 claims description 8
- 239000000919 ceramic Substances 0.000 claims description 6
- 239000002131 composite material Substances 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 1
Landscapes
- Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
Description
第１図は本考案にかかる実施例を示す概略斜視
図、第２図は等価回路図、第３図は従来例を示す
概略斜視図、第４図は等価回路図である。
１２…第１フイルタ素子、１３…第２フイルタ
素子、１５…入力端子電極、１６…入力端子、１
７…出力端子電極、１８…出力端子、３０…圧電
基板（圧電性セラミツク板）、３２…コンデンサ
接続電極、３３…コンデンサ接続端子、３４…ア
ース端子電極、３５…アース端子、３６…外部コ
ンデンサ。
FIG. 1 is a schematic perspective view showing an embodiment of the present invention, FIG. 2 is an equivalent circuit diagram, FIG. 3 is a schematic perspective view showing a conventional example, and FIG. 4 is an equivalent circuit diagram. 12...First filter element, 13...Second filter element, 15...Input terminal electrode, 16...Input terminal, 1
7... Output terminal electrode, 18... Output terminal, 30... Piezoelectric substrate (piezoelectric ceramic board), 32... Capacitor connection electrode, 33... Capacitor connection terminal, 34... Earth terminal electrode, 35... Earth terminal, 36... External capacitor.
Claims (1)
ー閉じ込めモードによる厚み振動形３端子フイル
タが２個以上形成された複合型セラミツクフイル
タにおいて、前記圧電性セラミツク板上に入力端
子電極、出力端子電極、アース端子電極が形成さ
れ、これら各電極に入力端子、出力端子、アース
端子が接続される一方、複数個の前記３端子フイ
ルタ間を接続する接続電極の一端にコンデンサ接
続電極が形成され、該コンデンサ接続電極に外部
コンデンサに接続されるコンデンサ接続端子が接
続され、前記アース端子電極と前記コンデンサ接
続電極とが圧電性セラミツク板を挟んで対向位置
には位置していない構成を特徴とする複合型セラ
ミツクフイルタ。 In a composite ceramic filter in which two or more thickness vibrating 3-terminal filters in an energy trapping mode are formed on the surface of one piezoelectric ceramic plate, an input terminal electrode, an output terminal electrode, and a ground are formed on the piezoelectric ceramic plate. Terminal electrodes are formed, and an input terminal, an output terminal, and a ground terminal are connected to each of these electrodes, while a capacitor connection electrode is formed at one end of the connection electrode that connects the plurality of three-terminal filters, and the capacitor connection A composite ceramic filter characterized in that a capacitor connection terminal connected to an external capacitor is connected to the electrode, and the ground terminal electrode and the capacitor connection electrode are not located at opposing positions with a piezoelectric ceramic plate in between. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7866888U JPH02831U (en) | 1988-06-14 | 1988-06-14 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7866888U JPH02831U (en) | 1988-06-14 | 1988-06-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02831U true JPH02831U (en) | 1990-01-05 |
Family
ID=31303577
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7866888U Pending JPH02831U (en) | 1988-06-14 | 1988-06-14 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02831U (en) |
-
1988
- 1988-06-14 JP JP7866888U patent/JPH02831U/ja active Pending
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