JPS605628Y2 - ceramic filter - Google Patents
ceramic filterInfo
- Publication number
- JPS605628Y2 JPS605628Y2 JP1510578U JP1510578U JPS605628Y2 JP S605628 Y2 JPS605628 Y2 JP S605628Y2 JP 1510578 U JP1510578 U JP 1510578U JP 1510578 U JP1510578 U JP 1510578U JP S605628 Y2 JPS605628 Y2 JP S605628Y2
- Authority
- JP
- Japan
- Prior art keywords
- ground
- filter
- piezoelectric ceramic
- electrode
- tape
- 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
Description
【考案の詳細な説明】
本考案はエネルギー閉込め型のセラミックフィルタに係
り、高性能で安価なものを提供しようとするものである
。[Detailed Description of the Invention] The present invention relates to an energy trapping type ceramic filter, and aims to provide a high-performance and inexpensive filter.
従来における１ウエハ１エレメントタイプのエネルギー
閉込め型多重モードフィルタを２段構成とする場合には
、強度を増すためプリント基板に貼付けて構成していた
。When a conventional one-wafer, one-element type energy confinement multimode filter has a two-stage configuration, it is attached to a printed circuit board to increase strength.
第１図に示すように圧電磁器板１の片面に結合電極２．
入出力端子３．エネルギー閉込め型多重モードフィルタ
部分４を設けるとともに、圧電磁器板１の他面にエネル
ギー閉込め型多重モードフィルタ部分４に対応する部分
にアース共通電極５とこのアース共通電極５と接続され
るアース端子６を形成腰これを２個プリント基板７上に
配置し、結合電極２どうし、アース端子６どうしを導電
性接着剤８で接続するとともに、プリント基板７のリー
ド端子９と接続される導電部１０に入出力端子３．アー
ス端子６を導電性接着剤８で接続し、全体を樹脂モール
ドして構成されている。As shown in FIG. 1, a coupling electrode 2 is provided on one side of a piezoelectric ceramic plate 1.
Input/output terminal 3. An energy confinement type multi-mode filter section 4 is provided, and a ground common electrode 5 is provided on the other surface of the piezoelectric ceramic plate 1 in a portion corresponding to the energy confinement type multi-mode filter section 4, and a ground connected to the ground common electrode 5. Two terminals 6 are formed on the printed circuit board 7, and the bonding electrodes 2 and the ground terminals 6 are connected with a conductive adhesive 8, and a conductive part is connected to the lead terminal 9 of the printed circuit board 7. 10 input/output terminals 3. The ground terminal 6 is connected with a conductive adhesive 8, and the entire structure is molded with resin.
このような構成では、強度は向上するが、アース共通電
極５の上に空隙を設けることに難があり、プリント基板
７に空隙形成のための凹部を設けることは、プリント基
板７の加工費が高くなるといった欠点があった。Although such a configuration improves the strength, it is difficult to provide a gap above the ground common electrode 5, and providing a recess for forming a gap in the printed circuit board 7 increases the processing cost of the printed circuit board 7. It had the disadvantage of being expensive.
本考案は以上のような従来の欠点を除去するものである
。The present invention eliminates the above-mentioned drawbacks of the prior art.
以下、本考案の実施例を図面第３〜第４図により説明す
る。Embodiments of the present invention will be described below with reference to FIGS. 3 and 4.
圧電磁器板１１の片面には結合電極１２、入出力端子１
３．エネルギー閉込め型の多重モードフィルタ部分１４
が、他面にはアース端子１５とアース共通電極１６が金
属蒸着、メッキなどによって形成されている。A coupling electrode 12 and an input/output terminal 1 are provided on one side of the piezoelectric ceramic plate 11.
3. Energy confinement type multimode filter section 14
However, on the other side, a ground terminal 15 and a ground common electrode 16 are formed by metal vapor deposition, plating, or the like.
このような圧電磁器板１１を２個並べて配置し、この片
面には、フィルタ部分１４に対応する部分に凹部１７を
形成したテープ１８を貼付け、他面にもアース共通電極
１６に対応する部分に凹部１７を形成したテープ１８を
貼付けて２個の圧電磁器板１どうじを結合し、両圧電磁
器板１の結合電極１２どうじと、アース端子１５どうじ
を導電性接着剤１９で接続し、入出力端子１３、アース
端子１５にリード端子２０を半田あるいは導電性接着剤
で接続し、全体を樹脂モールドして外装を形成してセラ
ミックフィルタを構成している。Two such piezoelectric ceramic plates 11 are arranged side by side, and a tape 18 with a concave portion 17 formed in a portion corresponding to the filter portion 14 is attached to one side of the plate, and a tape 18 with a concave portion 17 formed in a portion corresponding to the ground common electrode 16 is attached to the other side. The two piezoelectric ceramic plates 1 are joined together by pasting the tape 18 with the recess 17 formed thereon, and the coupling electrode 12 of both piezoelectric ceramic plates 1 and the ground terminal 15 are connected with a conductive adhesive 19, and the input/output is connected. Lead terminals 20 are connected to terminals 13 and ground terminals 15 by solder or conductive adhesive, and the entire structure is molded with resin to form an exterior, thereby constructing a ceramic filter.
以上のように本考案のセラミックフィルタは構成される
ため、プリント基板を不要とすることができ、しかも、
プリント基板を用いた場合と同等あるいはそれ以上の強
度を両面に貼付けるテープによって得ることができ、十
分な特性を確保するためフィルタ部分やアース共通電極
部に空隙を設けることも、テープに凹部を設けるだけで
よく、簡単に形成でき、コストの点でも著しく有利とな
り、プリント基板を不必要とすることができるため、小
形化を計ることができるなどの利点をもち、実用的価値
の犬なるものである。Since the ceramic filter of the present invention is constructed as described above, a printed circuit board can be eliminated, and
It is possible to obtain strength equal to or greater than when using a printed circuit board by attaching a tape to both sides.In order to ensure sufficient characteristics, gaps can be provided in the filter part and the ground common electrode part, or recesses can be made in the tape. It only needs to be installed, can be easily formed, has a significant cost advantage, eliminates the need for a printed circuit board, and can be made smaller, making it a dog of practical value. It is.
第１図は従来のセラミックフィルタの外装を除いた状態
の正面図、第２図は同フィルタに用いる圧電磁器板の背
面図、第３図は本考案のセラミックフィルタの一実施例
を示す外装を除いた状態の正面図、第４図は同背面図で
ある。
１１・・・・・・圧電磁器板、１２・・・・・・結合電
極、１３・・・・・・入出力端子、１４・・・・・・フ
ィルタ部分、１５・・・・・・アース端子、１６・・・
・・・アース共通電極、１７・・・・・・凹部、１８・
・・・・・テープ。Fig. 1 is a front view of a conventional ceramic filter with the exterior removed, Fig. 2 is a rear view of a piezoelectric ceramic plate used in the filter, and Fig. 3 is an exterior of an embodiment of the ceramic filter of the present invention. FIG. 4 is a front view of the removed state, and FIG. 4 is a rear view of the same. 11... Piezoelectric ceramic plate, 12... Coupling electrode, 13... Input/output terminal, 14... Filter part, 15... Earth Terminal, 16...
...Earth common electrode, 17...Recess, 18.
·····tape.
Claims (1)
モードフィルタ部分を設け、他面アース端子とアース共
通電極を設けた圧電磁器板を２個用い、結合電極どうし
、アース端子どうしを導電性接着剤で結合腰かつ上記多
重モードフィルタ部分に対応する部分とアース共通電極
に対応する部分に凹部を設けたテープを上記２個の圧電
磁器板に貼付けて構成したセラミックフィルタ。Using two piezoelectric ceramic plates with a coupling electrode, an input/output terminal, and an energy confinement multimode filter part on one side, and a ground terminal and a common ground electrode on the other, the coupling electrodes and the ground terminals are electrically bonded together. A ceramic filter is constructed by attaching a tape to the two piezoelectric ceramic plates, which is bonded together with an adhesive and has concave portions in a portion corresponding to the multimode filter portion and a portion corresponding to the ground common electrode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1510578U JPS605628Y2 (en) | 1978-02-08 | 1978-02-08 | ceramic filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1510578U JPS605628Y2 (en) | 1978-02-08 | 1978-02-08 | ceramic filter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS54118045U JPS54118045U (en) | 1979-08-18 |
| JPS605628Y2 true JPS605628Y2 (en) | 1985-02-21 |
Family
ID=28836221
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1510578U Expired JPS605628Y2 (en) | 1978-02-08 | 1978-02-08 | ceramic filter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS605628Y2 (en) |
-
1978
- 1978-02-08 JP JP1510578U patent/JPS605628Y2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS54118045U (en) | 1979-08-18 |
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