JPH042103U - - Google Patents
Info
- Publication number
- JPH042103U JPH042103U JP4261690U JP4261690U JPH042103U JP H042103 U JPH042103 U JP H042103U JP 4261690 U JP4261690 U JP 4261690U JP 4261690 U JP4261690 U JP 4261690U JP H042103 U JPH042103 U JP H042103U
- Authority
- JP
- Japan
- Prior art keywords
- metal frame
- helical coil
- filter
- circuit board
- printed circuit
- 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.)
- Granted
Links
- 239000002184 metal Substances 0.000 claims description 7
- 238000010586 diagram Methods 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 1
Landscapes
- Control Of Motors That Do Not Use Commutators (AREA)
Description
第１図から第４図にかけては本考案にかかるヘ
リカルコイルを使用したフイルタの一実施例を説
明するための図であつて、第１図はデユプレクサ
の内部構造を示すその側面図、第２図は第１図に
おけるＡ−Ａ線による矢視図、第３図は第１図に
おけるＢ−Ｂ線による矢視図、第４図はデユプレ
クサの回路図である。また、第５図は従来のデユ
プレクサを説明するための第１図に対応する図で
ある。
１０……金属シヤーシ、２０……プリント基板
、４０……接続端子、５０……開口、Ｌ２……コ
イル（第１のフイルタ回路部品）、Ｃ１……トリ
マコンデンサ（第１のフイルタ回路部品）、Ｌ１
……ヘリカルコイル。
1 to 4 are diagrams for explaining an embodiment of a filter using a helical coil according to the present invention, in which FIG. 1 is a side view showing the internal structure of the duplexer, and FIG. 2 is a side view thereof, and FIG. 1 is a view taken along the line A-A in FIG. 1, FIG. 3 is a view taken along the line B-B in FIG. 1, and FIG. 4 is a circuit diagram of the duplexer. Further, FIG. 5 is a diagram corresponding to FIG. 1 for explaining a conventional duplexer. 10... Metal chassis, 20... Printed circuit board, 40... Connection terminal, 50... Opening, L2... Coil (first filter circuit component), C1... Trimmer capacitor (first filter circuit component), L1
...Helical coil.
Claims (1)
中空支持されたヘリカルコイルとを有し、ヘリカ
ルコイルと金属枠体との間の浮遊容量を利用した
フイルタであつて、 金属枠体の外側に取り付けてあり、第１のフイ
ルタ回路部品を実装してあるプリント基板と、 金属枠体のプリント基板側面上に形成してある
開口と、 第１のフイルタ回路部品とヘリカルコイルとを
接続するためのプリント基板の金属枠体側に立設
した中継端子であつて、先端部が前記開口を介し
て金属枠体の内部に挿入される接続端子とを具備
していることを特徴とするヘリカルコイルを使用
したフイルタ。[Claims for Utility Model Registration] A filter that has a first filter circuit component and a helical coil supported hollow inside a metal frame, and utilizes stray capacitance between the helical coil and the metal frame. a printed circuit board attached to the outside of the metal frame and on which a first filter circuit component is mounted; an opening formed on a side surface of the printed circuit board of the metal frame; and a first filter circuit component. and a connecting terminal, the relay terminal standing upright on the metal frame side of the printed circuit board for connecting the helical coil and the helical coil, the tip of which is inserted into the metal frame through the opening. A filter that uses a helical coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4261690U JPH0644163Y2 (en) | 1990-04-20 | 1990-04-20 | Filter using a helical coil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4261690U JPH0644163Y2 (en) | 1990-04-20 | 1990-04-20 | Filter using a helical coil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH042103U true JPH042103U (en) | 1992-01-09 |
| JPH0644163Y2 JPH0644163Y2 (en) | 1994-11-14 |
Family
ID=31554314
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4261690U Expired - Lifetime JPH0644163Y2 (en) | 1990-04-20 | 1990-04-20 | Filter using a helical coil |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0644163Y2 (en) |
-
1990
- 1990-04-20 JP JP4261690U patent/JPH0644163Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0644163Y2 (en) | 1994-11-14 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |