JPS58125441U - antenna input circuit - Google Patents
antenna input circuitInfo
- Publication number
- JPS58125441U JPS58125441U JP2337882U JP2337882U JPS58125441U JP S58125441 U JPS58125441 U JP S58125441U JP 2337882 U JP2337882 U JP 2337882U JP 2337882 U JP2337882 U JP 2337882U JP S58125441 U JPS58125441 U JP S58125441U
- Authority
- JP
- Japan
- Prior art keywords
- input circuit
- resonant circuit
- antenna input
- mentioned
- resonates
- 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
- Channel Selection Circuits, Automatic Tuning Circuits (AREA)
- 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) [Summary] 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入力回路の電気品結線図、第２
図は本考案のアンテナ入力回路における一実施例の電気
的結線図、第３図は他の実施例の電気的結線図である。
１・・・、・・・アンテナ、２，６．１８．２０・・・
・・・バンド切換スイッチ、３，８．１０・・・・・・
コイル、４． ・５．９．１１・・・・・
・コンデンサ、７・曲・バリコン、１２．１３・・・・
・・アンテナコイル、１４・・・・・・ＦＭフロントエ
ンド、１６・・・・・・トランジスタ、１７・・・・・
・抵抗。Figure 1 is an electrical component wiring diagram of a conventional antenna input circuit, Figure 2
The figure is an electrical connection diagram of one embodiment of the antenna input circuit of the present invention, and FIG. 3 is an electrical connection diagram of another embodiment. 1...,...antenna, 2,6.18.20...
...Band selection switch, 3,8.10...
Coil, 4.・5.9.11・・・・・・
・Capacitor, 7・Tune ・Variable condenser, 12.13...
...Antenna coil, 14...FM front end, 16...Transistor, 17...
·resistance.
Claims (1)
てＦＭフロントエンドに接続するとともにＦＭ周波数帯
で共振する並列共振回路とコンデンサの直列回路を介し
て短波用アンテナコイルに接続し、上記並列共振回路と
上記コンデンサとの接続点をＦＭ受信時に上記接続点を
アースするスイッチ素子を介してアースするように構成
して成゛るアンテナ入力回路。The antenna is connected to the FM front end via a series resonant circuit that resonates in the FM frequency band, and is connected to the shortwave antenna coil via a parallel resonant circuit that resonates in the FM frequency band and a series circuit of a capacitor, and the above-mentioned parallel resonant circuit and the above-mentioned capacitor are grounded via a switch element which grounds the above-mentioned connection point during FM reception.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2337882U JPS58125441U (en) | 1982-02-19 | 1982-02-19 | antenna input circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2337882U JPS58125441U (en) | 1982-02-19 | 1982-02-19 | antenna input circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58125441U true JPS58125441U (en) | 1983-08-26 |
Family
ID=30035421
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2337882U Pending JPS58125441U (en) | 1982-02-19 | 1982-02-19 | antenna input circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58125441U (en) |
-
1982
- 1982-02-19 JP JP2337882U patent/JPS58125441U/en active Pending
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