JPH0230612U - - Google Patents
Info
- Publication number
- JPH0230612U JPH0230612U JP10871788U JP10871788U JPH0230612U JP H0230612 U JPH0230612 U JP H0230612U JP 10871788 U JP10871788 U JP 10871788U JP 10871788 U JP10871788 U JP 10871788U JP H0230612 U JPH0230612 U JP H0230612U
- Authority
- JP
- Japan
- Prior art keywords
- antenna
- circuit
- capacitor
- tuning
- wave 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
- 239000003990 capacitor Substances 0.000 claims description 5
- 230000000903 blocking effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Details Of Aerials (AREA)
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
Description
第１図は従来の中波空中線回路の回路図、第２
図ａ，ｂは従来の中波空中線を受信機外部に接続
した場合の回路図、第３図は本考案の実施例によ
る遠隔同調中波空中線の回路図である。
１……ループアンテナ（またはバーアンテナ）
、１′……ループアンテナ（またはバーアンテナ
）一次コイル、１″……ループアンテナ（または
バーアンテナ）二次コイル、２……同調用コンデ
ンサ、３……可変容量ダイオード、４……高周波
阻止用抵抗（または高周波チヨーク）、５……直
流阻止用コンデンサ、６……高周波阻止用抵抗（
または高周波チヨーク）、７……電圧制御用可変
抵抗、８……直流阻止用コンデンサ、９……直流
電源（電池）、１０……給電線、１１……並列共
振回路（同調回路）、１２……同調用可変コンデ
ンサ。
Figure 1 is a circuit diagram of a conventional medium wave antenna circuit, Figure 2 is a circuit diagram of a conventional medium wave antenna circuit.
Figures a and b are circuit diagrams when a conventional medium wave antenna is connected to the outside of the receiver, and Fig. 3 is a circuit diagram of a remotely tuned medium wave antenna according to an embodiment of the present invention. 1...Loop antenna (or bar antenna)
, 1'...Loop antenna (or bar antenna) primary coil, 1''...Loop antenna (or bar antenna) secondary coil, 2...Tuning capacitor, 3...Variable capacitance diode, 4...High frequency blocking Resistor (or high frequency choke), 5...DC blocking capacitor, 6...High frequency blocking resistor (
or high frequency choke), 7... variable resistor for voltage control, 8... capacitor for direct current blocking, 9... direct current power supply (battery), 10... power supply line, 11... parallel resonant circuit (tuned circuit), 12... ...Variable capacitor for tuning.
Claims (1)
に同調用コンデンサとして可変容量ダイオードを
使用し、空中線の同調周波数を給電線に重畳した
直流電圧で制御する方式。 A method in which a variable capacitance diode is used as a tuning capacitor for a medium-wave antenna installed far from the receiver, and the antenna's tuning frequency is controlled by a DC voltage superimposed on the feed line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10871788U JPH0230612U (en) | 1988-08-20 | 1988-08-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10871788U JPH0230612U (en) | 1988-08-20 | 1988-08-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0230612U true JPH0230612U (en) | 1990-02-27 |
Family
ID=31344315
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10871788U Pending JPH0230612U (en) | 1988-08-20 | 1988-08-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0230612U (en) |
-
1988
- 1988-08-20 JP JP10871788U patent/JPH0230612U/ja active Pending
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