JPS607562Y2 - ceramic filter - Google Patents
ceramic filterInfo
- Publication number
- JPS607562Y2 JPS607562Y2 JP15579778U JP15579778U JPS607562Y2 JP S607562 Y2 JPS607562 Y2 JP S607562Y2 JP 15579778 U JP15579778 U JP 15579778U JP 15579778 U JP15579778 U JP 15579778U JP S607562 Y2 JPS607562 Y2 JP S607562Y2
- Authority
- JP
- Japan
- Prior art keywords
- ceramic filter
- walled
- piezoelectric resonators
- thick
- thin
- 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.)
- Expired
Links
Landscapes
- Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
Description
【考案の詳細な説明】
本考案は圧電共振子をワイヤマウント支持してなるセラ
ミックフィルタに関するものである。[Detailed Description of the Invention] The present invention relates to a ceramic filter in which a piezoelectric resonator is supported by a wire mount.
従来のセラミックフィルタを図によって説明すると、第
１図はその一例の平面図である。To explain a conventional ceramic filter using figures, FIG. 1 is a plan view of an example thereof.
図において１は厚肉圧電共振子、２は薄肉圧電共振子で
これら圧電共振子１，２の振動中心にはワイヤ３の一端
がマウントされている。In the figure, 1 is a thick-walled piezoelectric resonator, 2 is a thin-walled piezoelectric resonator, and one end of a wire 3 is mounted at the center of vibration of these piezoelectric resonators 1 and 2.
ワイヤ３の他端は支持ピン４の一端に半田付けされ、支
持ピン４の他端は基台５に固着されている。The other end of the wire 3 is soldered to one end of a support pin 4, and the other end of the support pin 4 is fixed to a base 5.
圧電共振子１，２は厚肉圧電共振子１を直線に配列し、
薄肉圧電共振子２をその配列の所定位置に配列するよう
に配置されている。The piezoelectric resonators 1 and 2 are thick-walled piezoelectric resonators 1 arranged in a straight line,
The thin piezoelectric resonators 2 are arranged at predetermined positions in the array.
そしてこのセラミックフィルタに所望の特性を付加する
ため薄肉圧電共振子２のワイヤ３の一端を接地している
。In order to add desired characteristics to this ceramic filter, one end of the wire 3 of the thin piezoelectric resonator 2 is grounded.
しかしながら、このような従来のセラミックフィルタに
よれば厚肉圧電共振子１を直線に配列するため、セラミ
ックフィルタ全体が大きくなり、小型化の要請に逆行し
ていた。However, in such a conventional ceramic filter, the thick-walled piezoelectric resonators 1 are arranged in a straight line, which increases the size of the entire ceramic filter, which goes against the demand for miniaturization.
圧電共振子１，２の大きさは中心周波数によっである大
きさに限定されており、またワイヤ３の長さも作業性お
よびワイヤ共振の間 があるため、ある長さに限定され
ている。The size of the piezoelectric resonators 1 and 2 is limited to a certain size depending on the center frequency, and the length of the wire 3 is also limited to a certain length due to workability and wire resonance.
したがって従来の配列であれば圧電共振子１，２の大き
さ、ワイヤ３の長さによってセラミックフィルタの大き
さが決定され小形化には限度があった。Therefore, in the conventional arrangement, the size of the ceramic filter is determined by the size of the piezoelectric resonators 1 and 2 and the length of the wire 3, and there is a limit to miniaturization.
また薄肉圧電共振子２の個数に対応して接地箇所が必要
であり、作業性、信頼性の面でも問題があった。Furthermore, grounding points are required in proportion to the number of thin-walled piezoelectric resonators 2, which poses problems in terms of workability and reliability.
本考案はかかる欠点を除去るために、厚肉圧電共振子群
をコ字形に配列したものであり、以下図によって説明す
る。In order to eliminate this drawback, the present invention has a group of thick-walled piezoelectric resonators arranged in a U-shape, and will be explained below with reference to the drawings.
第２図は本考案の一実施例を示すセラミックフィルタの
平面図である。FIG. 2 is a plan view of a ceramic filter showing an embodiment of the present invention.
図において６は厚肉圧電共振子、７は薄肉圧電共振子で
第１図と同様にこれら圧電共振子６，７の振動中心には
ワイヤ８の一端がマウントされ、ワイヤ８の他端は支持
ピン９の一端に半田付けされ、支持ピン９の他端は基板
１０に固着されている。In the figure, 6 is a thick-walled piezoelectric resonator, 7 is a thin-walled piezoelectric resonator, and as in FIG. One end of the pin 9 is soldered, and the other end of the support pin 9 is fixed to the substrate 10.
本実施例においては圧電共振子６，７は厚肉圧電共振子
６をコ字形に配列し、薄肉圧電共振子７をそのコ字形角
部の外側および内側の中央近傍に配列するように配置さ
れている。In this embodiment, the piezoelectric resonators 6 and 7 are arranged such that the thick-walled piezoelectric resonators 6 are arranged in a U-shape, and the thin-walled piezoelectric resonators 7 are arranged near the center of the outside and inside corners of the U-shape. ing.
そして第１図と同様に、このセラミックフィルタに所望
の特性を付加するため、図のように接地している。Similarly to FIG. 1, in order to add desired characteristics to this ceramic filter, it is grounded as shown.
以上のように本考案によれば厚肉圧電共振子群をコ字形
に配列することにより、従来に比しセラミックフィルタ
の小形化を実現することができる。As described above, according to the present invention, by arranging the thick-walled piezoelectric resonators in a U-shape, it is possible to realize a smaller ceramic filter than in the past.
圧電共振子６，７の大きさ、およびワイヤ８の長さは従
来と同様に限定されているが、本考案の圧電共振子６，
７の配列によってで無駄なスペースを省くことができた
。Although the sizes of the piezoelectric resonators 6 and 7 and the length of the wire 8 are limited as in the conventional case, the piezoelectric resonators 6 and 7 of the present invention
By arranging 7, we were able to eliminate wasted space.
その結果、従来のセラミックフィルタに比較して極めて
小型のフィルタの実現が可能となった、また薄肉圧電共
振子のワイヤの一端を接地する場合、本考案では接地箇
所を共有する部分があるため、従来に比し接地箇所が少
なくてすみ、作業性、信頼性等の点でも極めて有利であ
る。As a result, it has become possible to create a filter that is extremely compact compared to conventional ceramic filters.Also, when one end of the wire of a thin-walled piezoelectric resonator is grounded, in this invention there is a common grounding point, so It requires fewer grounding points than the conventional method, and is extremely advantageous in terms of workability, reliability, etc.
第１図は従来のセラミックフィルタの平面図、第２図は
本考案の一実施例を示すセラミックフィルタの平面図で
ある。
図において１，６は厚肉圧電共振子、２，７は薄肉圧電
共振子、３，８はワイヤ、４，９は支持ピン、５，１０
は基台である。FIG. 1 is a plan view of a conventional ceramic filter, and FIG. 2 is a plan view of a ceramic filter showing an embodiment of the present invention. In the figure, 1 and 6 are thick-walled piezoelectric resonators, 2 and 7 are thin-walled piezoelectric resonators, 3 and 8 are wires, 4 and 9 are support pins, and 5 and 10 are
is the base.
Claims (1)
振子の前記ワイヤを支持ピン間で支持してなるセラミッ
クフィルタにおいて、前記厚肉圧電共振子をコ字形に配
列腰前記薄肉圧電共振子をのコ字の角部外側および内側
中央近傍に配列したことを特徴とするセラミックフィル
タ。In a ceramic filter in which the wires of a thick-walled piezoelectric resonator and a thin-walled piezoelectric resonator mounted with wires are supported between support pins, the thick-walled piezoelectric resonators are arranged in a U-shape, and the thin-walled piezoelectric resonators are arranged in a U-shape. 1. A ceramic filter characterized by being arranged near the outer corner of the letter and the inner center of the letter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15579778U JPS607562Y2 (en) | 1978-11-13 | 1978-11-13 | ceramic filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15579778U JPS607562Y2 (en) | 1978-11-13 | 1978-11-13 | ceramic filter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5572334U JPS5572334U (en) | 1980-05-19 |
| JPS607562Y2 true JPS607562Y2 (en) | 1985-03-14 |
Family
ID=29145161
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15579778U Expired JPS607562Y2 (en) | 1978-11-13 | 1978-11-13 | ceramic filter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS607562Y2 (en) |
-
1978
- 1978-11-13 JP JP15579778U patent/JPS607562Y2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5572334U (en) | 1980-05-19 |
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