JPS61131126U - - Google Patents
Info
- Publication number
- JPS61131126U JPS61131126U JP1443085U JP1443085U JPS61131126U JP S61131126 U JPS61131126 U JP S61131126U JP 1443085 U JP1443085 U JP 1443085U JP 1443085 U JP1443085 U JP 1443085U JP S61131126 U JPS61131126 U JP S61131126U
- Authority
- JP
- Japan
- Prior art keywords
- electrode
- external connection
- input
- connection electrode
- output
- 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
- 238000010586 diagram Methods 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 1
Landscapes
- Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
Description
第１図は本考案の実施例にかかるラダー型圧電
フイルタの正面図、第２図は第１図の―に沿
う断面図、第３図は第１図の―に沿う断面図
、第４図は前記実施例にかかる圧電フイルタの等
価回路図、第５図は従来例の２重モードフイルタ
の概略化した側面図、第６図は前記従来例のフイ
ルタの特性を示す図である。
各図中、符号１はラダー型圧電フイルタ、２は
回路基板、３，４，５，６は圧電共振子、７，９
，１１はリード端子、８，１０，１２は入力側、
接地側、出力側の各電極、２６ないし２９および
４０ないし４３は外部接続電極。
Fig. 1 is a front view of a ladder-type piezoelectric filter according to an embodiment of the present invention, Fig. 2 is a cross-sectional view taken along - in Fig. 1, Fig. 3 is a cross-sectional view taken along - in Fig. 1, and Fig. 4 is a cross-sectional view taken along - in Fig. 1. 5 is an equivalent circuit diagram of the piezoelectric filter according to the embodiment, FIG. 5 is a schematic side view of a conventional dual mode filter, and FIG. 6 is a diagram showing characteristics of the conventional filter. In each figure, numeral 1 is a ladder type piezoelectric filter, 2 is a circuit board, 3, 4, 5, 6 are piezoelectric resonators, 7, 9
, 11 are lead terminals, 8, 10, 12 are input side,
Electrodes 26 to 29 and 40 to 43 on the ground side and output side are external connection electrodes.
Claims (1)
面とにそれぞれ搭載されるエネルギー閉じ込め型
厚み振動型の第１、第２直列圧電共振子および第
１、第２並列圧電共振子とを備え、 前記回路基板には、入力側リード端子接続用の
入力側電極と、接地側リード端子接続用の接地側
電極と、出力側リード端子接続用の出力側電極と
、共通電極とが形成され、 前記第１直列圧電共振子の、入力側外部接続電
極は前記入力側電極に、また出力側外部接続電極
は前記共通電極にそれぞれ接続されており、また
前記第２直列圧電共振子の、入力側外部接続電極
は前記共通電極に、また出力側外部接続電極は前
記出力側電極にそれぞれ接続されており、 前記第１、第２並列圧電共振子の、各一方側外
部接続電極は前記共通電極に、また各他方側外部
接続電極は前記接地側電極にそれぞれ接続されて
なるラダー型圧電フイルタ。[Claims for Utility Model Registration] A circuit board, first and second series piezoelectric resonators of energy trap thickness vibration type mounted on one surface and the other surface of the circuit board, respectively, and first and second series piezoelectric resonators. The circuit board includes an input side electrode for connecting an input side lead terminal, a ground side electrode for connecting a ground side lead terminal, and an output side electrode for connecting an output side lead terminal. , a common electrode, and the input-side external connection electrode of the first series piezoelectric resonator is connected to the input-side electrode, and the output-side external connection electrode is connected to the common electrode, and the second The input side external connection electrode of the series piezoelectric resonator is connected to the common electrode, and the output side external connection electrode is connected to the output side electrode, respectively, and one side of each of the first and second parallel piezoelectric resonators A ladder type piezoelectric filter in which an external connection electrode is connected to the common electrode, and each other side external connection electrode is connected to the ground side electrode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1443085U JPS61131126U (en) | 1985-02-04 | 1985-02-04 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1443085U JPS61131126U (en) | 1985-02-04 | 1985-02-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61131126U true JPS61131126U (en) | 1986-08-16 |
Family
ID=30499347
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1443085U Pending JPS61131126U (en) | 1985-02-04 | 1985-02-04 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61131126U (en) |
-
1985
- 1985-02-04 JP JP1443085U patent/JPS61131126U/ja active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS6421525U (en) | ||
| JPS61131126U (en) | ||
| JPS61131125U (en) | ||
| JPS6244592Y2 (en) | ||
| JPS6244587Y2 (en) | ||
| JPS6224982Y2 (en) | ||
| JPS628583Y2 (en) | ||
| JPH0191328U (en) | ||
| JPS63121923U (en) | ||
| JPS61139016U (en) | ||
| JPH0233397Y2 (en) | ||
| JPS61162134U (en) | ||
| JPS605628Y2 (en) | ceramic filter | |
| JPH0431826U (en) | ||
| JPH02106726U (en) | ||
| JPH0441622Y2 (en) | ||
| JPH0382925U (en) | ||
| JPS61195628U (en) | ||
| JPH0177029U (en) | ||
| JPS59172823A (en) | Ladder type piezoelectric filter | |
| JPH0174625U (en) | ||
| JPS59164329U (en) | Chip type piezoelectric filter | |
| JPS6438824U (en) | ||
| JPS62191220U (en) | ||
| JPS6364117U (en) |