JPS59166523U - Radio receiver band switching device - Google Patents
Radio receiver band switching deviceInfo
- Publication number
- JPS59166523U JPS59166523U JP5979583U JP5979583U JPS59166523U JP S59166523 U JPS59166523 U JP S59166523U JP 5979583 U JP5979583 U JP 5979583U JP 5979583 U JP5979583 U JP 5979583U JP S59166523 U JPS59166523 U JP S59166523U
- Authority
- JP
- Japan
- Prior art keywords
- tuning
- switching device
- radio receiver
- coils
- band switching
- 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
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図は従来の高周波同調回路の回路図、第２図はこの
考案の実施例を示す同回路図である。
１・・・アンテナ回路、２・・・インピーダンス変換素
子、６． ７． ８・・・同調コイル、９・・・第１ス
イツチ、１０・・・同調用可変コンデンサ、１１・・・
第２スイツチ。FIG. 1 is a circuit diagram of a conventional high frequency tuning circuit, and FIG. 2 is a circuit diagram showing an embodiment of this invention. 1... Antenna circuit, 2... Impedance conversion element, 6. 7. 8... Tuning coil, 9... First switch, 10... Tuning variable capacitor, 11...
Second switch.
Claims (1)
最低周波数帯の同調コイルの２次側端部を電源に接続し
、アンテナ回路にはインピーダンス変換素子を接続する
と共に、該インピーダンス変換素子の出力側を最高周波
数帯の同調コイルの２次側端部を接続し、同調用可変コ
ンデンサが第１スイツチを介して前記各同調コイルの１
次側に切換可能に接続され、かつ前記各同調コイルの２
゛ 次側における他の同調コイルとの接続点を第２ス
インチを介してコンデンサにより接地したことを特徴と
するラジオ受信機のバンド切換装置。Connect multiple tuned coils in series in order of secondary side frequency,
The secondary end of the tuning coil in the lowest frequency band is connected to a power source, an impedance conversion element is connected to the antenna circuit, and the output side of the impedance conversion element is connected to the secondary end of the tuning coil in the highest frequency band. are connected, and the tuning variable capacitor is connected to one of the tuning coils through the first switch.
switchably connected to the next side, and two of said tuning coils.
゛ A band switching device for a radio receiver, characterized in that a connection point with another tuning coil on the next side is grounded by a capacitor via a second switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5979583U JPS59166523U (en) | 1983-04-21 | 1983-04-21 | Radio receiver band switching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5979583U JPS59166523U (en) | 1983-04-21 | 1983-04-21 | Radio receiver band switching device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59166523U true JPS59166523U (en) | 1984-11-08 |
| JPH0113462Y2 JPH0113462Y2 (en) | 1989-04-20 |
Family
ID=30190043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5979583U Granted JPS59166523U (en) | 1983-04-21 | 1983-04-21 | Radio receiver band switching device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59166523U (en) |
-
1983
- 1983-04-21 JP JP5979583U patent/JPS59166523U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0113462Y2 (en) | 1989-04-20 |
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