JPS6170448U - - Google Patents
Info
- Publication number
- JPS6170448U JPS6170448U JP15387284U JP15387284U JPS6170448U JP S6170448 U JPS6170448 U JP S6170448U JP 15387284 U JP15387284 U JP 15387284U JP 15387284 U JP15387284 U JP 15387284U JP S6170448 U JPS6170448 U JP S6170448U
- Authority
- JP
- Japan
- Prior art keywords
- input
- input coil
- coil
- response
- antenna
- 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
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
Description
第１図は本考案の一実施例を示す図、第２図は
他の実施例を示す図、第３図は従来例を示す図で
ある。
１……ループアンテナ、２，４，２′，４′…
…入力コイル、６……可変容量ダイオード、１１
′，１５，１８……スイツチングトランジスタ。
FIG. 1 is a diagram showing one embodiment of the present invention, FIG. 2 is a diagram showing another embodiment, and FIG. 3 is a diagram showing a conventional example. 1...Loop antenna, 2, 4, 2', 4'...
...Input coil, 6...Variable capacitance diode, 11
', 15, 18...Switching transistor.
Claims (1)
一端が接続された第１入力コイルと、前記ループ
アンテナの他端が接続された第２入力コイルと、
前記第１及び第２入力コイル間に接続された同調
用の可変容量素子と、バンド切換に応答して前記
第１入力コイルを選択的に短絡すると共に前記可
変容量素子の一端を選択的に接地する第１スイツ
チ手段と、バンド切換に応答して前記第２入力コ
イルの入力側若しくは出力側を選択的に接地する
第２スイツチ手段とを備えたことを特徴とする受
信機のアンテナ入力回路。 (2) 第１入力コイルが長波用入力コイル、第２
入力コイルが中波用入力コイルである実用新案登
録請求の範囲第(1)項記載の受信機のアンテナ入
力回路。[Claims for Utility Model Registration] (1) A loop antenna, a first input coil to which one end of the loop antenna is connected, and a second input coil to which the other end of the loop antenna is connected;
A tuning variable capacitance element connected between the first and second input coils, and selectively shorting the first input coil in response to band switching and selectively grounding one end of the variable capacitance element. 1. An antenna input circuit for a receiver, comprising: first switch means for grounding the input side or output side of the second input coil in response to band switching; and second switch means for selectively grounding the input side or the output side of the second input coil in response to band switching. (2) The first input coil is a long wave input coil, the second
An antenna input circuit for a receiver according to claim (1), wherein the input coil is a medium wave input coil.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15387284U JPS6170448U (en) | 1984-10-11 | 1984-10-11 | |
| CN85107775.7A CN1004783B (en) | 1984-10-05 | 1985-10-05 | Antenna input circuit for receiver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15387284U JPS6170448U (en) | 1984-10-11 | 1984-10-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6170448U true JPS6170448U (en) | 1986-05-14 |
Family
ID=30711885
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15387284U Pending JPS6170448U (en) | 1984-10-05 | 1984-10-11 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6170448U (en) |
-
1984
- 1984-10-11 JP JP15387284U patent/JPS6170448U/ja active Pending
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