JPS6072046U - antenna circuit - Google Patents
antenna circuitInfo
- Publication number
- JPS6072046U JPS6072046U JP16241483U JP16241483U JPS6072046U JP S6072046 U JPS6072046 U JP S6072046U JP 16241483 U JP16241483 U JP 16241483U JP 16241483 U JP16241483 U JP 16241483U JP S6072046 U JPS6072046 U JP S6072046U
- Authority
- JP
- Japan
- Prior art keywords
- band
- terminal
- matching coil
- short wave
- receiving 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.)
- Pending
Links
Landscapes
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は従来のアンテナ回路の一例の回路図、第２図は
本考案になるアンテナ回路の回路図である。
ｌａ、ｌｂ・・・ロッドアンテナ、２・・・マツチング
コイル、３・・・スイッチ、４・・・バンドパスフィル
タ、５・・・コンデンサ、６・・・ＳＷ （短波）用ア
ンテナコイル、７．８・・・パターン、９・・・トラン
ジスタ、１０・・・抵抗器、１１・・・スイッチ。FIG. 1 is a circuit diagram of an example of a conventional antenna circuit, and FIG. 2 is a circuit diagram of an antenna circuit according to the present invention. la, lb...Rod antenna, 2...Matching coil, 3...Switch, 4...Band pass filter, 5...Capacitor, 6...SW (short wave) antenna coil, 7 .8...Pattern, 9...Transistor, 10...Resistor, 11...Switch.
Claims (1)
バンド受信の際に共用する多バンド受信機の一構成要素
であって、−次側端子が前記ロッドアンテナに接続され
一次側中点端子が結合コンデンサを介してＳＷ（短波）
バンド受信回路部に接続され二次側端子がＦＭバンド受
信回路部に接続されているマツチングコイルと、前記マ
ツチングコイルの一次側中点端子と接地点との間に介挿
され直流電流によって制御される電子スイッチとからな
り、ＦＭバンド受信の際に前記マツチングコイルの一次
側中点端子が接地され、ＳＷ （短波）バンド受信の際
に前記マツチングコイルの−′次側中点端子が接地され
ないように前記電子スイッチを受信機のバンド切換に連
動させて選択切換するように構成したアンテナ回路。Use the rod antenna for FM band reception and SW (short wave)
It is a component of a multi-band receiver that is shared during band reception, and the negative side terminal is connected to the rod antenna, and the primary side midpoint terminal is connected to the SW (short wave) through a coupling capacitor.
A matching coil that is connected to the band receiving circuit and whose secondary terminal is connected to the FM band receiving circuit, and a matching coil that is inserted between the primary midpoint terminal of the matching coil and the ground point, and is connected to the FM band receiving circuit by direct current. The primary center point terminal of the matching coil is grounded during FM band reception, and the -' secondary center point terminal of the matching coil is grounded during SW (short wave) band reception. An antenna circuit configured to selectively switch the electronic switch in conjunction with band switching of a receiver so that the antenna circuit is not grounded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16241483U JPS6072046U (en) | 1983-10-20 | 1983-10-20 | antenna circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16241483U JPS6072046U (en) | 1983-10-20 | 1983-10-20 | antenna circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6072046U true JPS6072046U (en) | 1985-05-21 |
Family
ID=30356661
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16241483U Pending JPS6072046U (en) | 1983-10-20 | 1983-10-20 | antenna circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6072046U (en) |
-
1983
- 1983-10-20 JP JP16241483U patent/JPS6072046U/en active Pending
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