JPH032711U - - Google Patents
Info
- Publication number
- JPH032711U JPH032711U JP6090189U JP6090189U JPH032711U JP H032711 U JPH032711 U JP H032711U JP 6090189 U JP6090189 U JP 6090189U JP 6090189 U JP6090189 U JP 6090189U JP H032711 U JPH032711 U JP H032711U
- Authority
- JP
- Japan
- Prior art keywords
- control voltage
- capacitor
- loop antenna
- antenna
- variable tuning
- 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 4
- 239000004020 conductor Substances 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 1
Landscapes
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
Description
第１図は本考案の原理構成を示すブロツク図、
第２図は本考案の一実施例を示す回路図、第３図
は本考案の前提となるループアンテナ同調回路を
示すブロツク図である。
図において、１……ループアンテナ、２……可
変同調コンデンサ、３……伝送線路、５……制御
電圧発生部、１０……導体ループ、２０……可変
容量ダイオード。
Figure 1 is a block diagram showing the principle configuration of the present invention.
FIG. 2 is a circuit diagram showing an embodiment of the present invention, and FIG. 3 is a block diagram showing a loop antenna tuning circuit which is the premise of the present invention. In the figure, 1... loop antenna, 2... variable tuning capacitor, 3... transmission line, 5... control voltage generation section, 10... conductor loop, 20... variable capacitance diode.
Claims (1)
該ループアンテナ１からの受信信号Ｓｒを受信機
Ｒに供給する受信用アンテナにおいて、 前記ループアンテナ１の導体ループ１０に接続
し、かつ、前記受信信号Ｓｒの受信周波数を前記
放送電波の放送周波数に同調させる可変同調コン
デンサ２と、 該可変同調コンデンサ２に前記受信機Ｒ側から
制御電圧Ｖｒを印加する制御電圧発生部５とを備
え、 該制御電圧発生部５からの制御電圧Ｖｒにより
前記可変同調コンデンサ２の容量値を調整するこ
とを特徴とする受信用アンテナ。[Scope of claim for utility model registration] Having a loop antenna 1 for receiving broadcast radio waves,
A receiving antenna that supplies the received signal Sr from the loop antenna 1 to the receiver R is connected to the conductor loop 10 of the loop antenna 1, and sets the reception frequency of the received signal Sr to the broadcast frequency of the broadcast radio wave. A variable tuning capacitor 2 for tuning, and a control voltage generation section 5 for applying a control voltage Vr from the receiver R side to the variable tuning capacitor 2, and the variable tuning is controlled by the control voltage Vr from the control voltage generation section 5. A receiving antenna characterized in that the capacitance value of a capacitor 2 is adjusted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6090189U JPH032711U (en) | 1989-05-29 | 1989-05-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6090189U JPH032711U (en) | 1989-05-29 | 1989-05-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH032711U true JPH032711U (en) | 1991-01-11 |
Family
ID=31588674
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6090189U Pending JPH032711U (en) | 1989-05-29 | 1989-05-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH032711U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013114998A1 (en) * | 2012-01-30 | 2013-08-08 | 株式会社村田製作所 | Antenna device, card-type communications device, and communications terminal device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56122506A (en) * | 1980-03-03 | 1981-09-26 | Pioneer Electronic Corp | Mobile antenna for broadcast receiving |
| JPS62283705A (en) * | 1987-02-06 | 1987-12-09 | Toyota Motor Corp | Antenna system for vehicle |
| JPS633502A (en) * | 1986-06-24 | 1988-01-08 | Matsushita Electric Ind Co Ltd | Antenna input circuit |
-
1989
- 1989-05-29 JP JP6090189U patent/JPH032711U/ja active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56122506A (en) * | 1980-03-03 | 1981-09-26 | Pioneer Electronic Corp | Mobile antenna for broadcast receiving |
| JPS633502A (en) * | 1986-06-24 | 1988-01-08 | Matsushita Electric Ind Co Ltd | Antenna input circuit |
| JPS62283705A (en) * | 1987-02-06 | 1987-12-09 | Toyota Motor Corp | Antenna system for vehicle |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013114998A1 (en) * | 2012-01-30 | 2013-08-08 | 株式会社村田製作所 | Antenna device, card-type communications device, and communications terminal device |
| JPWO2013114998A1 (en) * | 2012-01-30 | 2015-05-11 | 株式会社村田製作所 | ANTENNA DEVICE, CARD-TYPE COMMUNICATION DEVICE, AND COMMUNICATION TERMINAL DEVICE |
| US9269038B2 (en) | 2012-01-30 | 2016-02-23 | Murata Manufacturing Co., Ltd. | Antenna device, card-type communication device, and communication terminal apparatus |
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