JPH0210643U - - Google Patents
Info
- Publication number
- JPH0210643U JPH0210643U JP8806988U JP8806988U JPH0210643U JP H0210643 U JPH0210643 U JP H0210643U JP 8806988 U JP8806988 U JP 8806988U JP 8806988 U JP8806988 U JP 8806988U JP H0210643 U JPH0210643 U JP H0210643U
- Authority
- JP
- Japan
- Prior art keywords
- antenna
- circuit
- band
- short
- side winding
- 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
- 230000008878 coupling Effects 0.000 claims description 6
- 238000010168 coupling process Methods 0.000 claims description 6
- 238000005859 coupling reaction Methods 0.000 claims description 6
- 238000004804 winding Methods 0.000 claims 6
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Channel Selection Circuits, Automatic Tuning Circuits (AREA)
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
Description
図は本考案の一実施例を示す回路図である。
１……ループアンテナ、２……中波バンド用ア
ンテナ結合コイル、５……第１短波バンド用アン
テナ結合コイル、１３……バツフア回路、１６…
…チヨークコイル、Ａ……第２短波バンド用アン
テナ結合コイル。
The figure is a circuit diagram showing an embodiment of the present invention. DESCRIPTION OF SYMBOLS 1... Loop antenna, 2... Medium wave band antenna coupling coil, 5... First short wave band antenna coupling coil, 13... Buffer circuit, 16...
...Chiyoke coil, A...Antenna coupling coil for second short wave band.
Claims (1)
続され且つアンテナ側巻線と同調側巻線とを各々
有し、アンテナ側巻線が互いに直列に接続された
中波バンド用及び第１短波バンド用アンテナ結合
コイルと、第２短波バンド用アンテナ同調回路と
、高周波増幅回路の信号入力側と基準電位点側と
の間に前記アンテナ同調回路の出力側巻線と共に
直列に接続されるチヨークコイルと、前記アンテ
ナ結合コイルからの出力が供給され、出力端が前
記出力側巻線とチヨークコイルの接続点に接続さ
れたバツフア回路と、バンド切換に応じて前記ア
ンテナ結合コイル及びアンテナ同調回路を選択的
に短絡するスイツチング回路とを具備したことを
特徴とする多バンド受信機。 (2) 出力側巻線とチヨークコイルの接続点に高
周波信号を短絡する短絡回路を設け、第２短波バ
ンド受信時、短絡回路にてバツフア回路の出力を
短絡するようにしたことを特徴とする請求項１記
載の多バンド受信機。[Claims for Utility Model Registration] (1) A medium wave antenna which has a loop antenna, an antenna side winding and a tuning side winding connected to the loop antenna, and where the antenna side windings are connected in series with each other. The antenna coupling coil for the band and the first shortwave band, the antenna tuning circuit for the second shortwave band, and the output side winding of the antenna tuning circuit are connected in series between the signal input side of the high frequency amplifier circuit and the reference potential point side. a buffer circuit to which the output from the antenna coupling coil is supplied and whose output end is connected to a connection point between the output side winding and the Chiyork coil; and a buffer circuit connected to the antenna coupling coil and the antenna in response to band switching A multiband receiver comprising a switching circuit that selectively shorts a tuning circuit. (2) A claim characterized in that a short-circuit circuit for short-circuiting a high-frequency signal is provided at the connection point between the output side winding and the chiyoke coil, and when the second short-wave band is received, the short-circuit circuit short-circuits the output of the buffer circuit. The multi-band receiver according to item 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8806988U JPH0628841Y2 (en) | 1988-07-01 | 1988-07-01 | Multi band receiver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8806988U JPH0628841Y2 (en) | 1988-07-01 | 1988-07-01 | Multi band receiver |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0210643U true JPH0210643U (en) | 1990-01-23 |
| JPH0628841Y2 JPH0628841Y2 (en) | 1994-08-03 |
Family
ID=31312652
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8806988U Expired - Lifetime JPH0628841Y2 (en) | 1988-07-01 | 1988-07-01 | Multi band receiver |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0628841Y2 (en) |
-
1988
- 1988-07-01 JP JP8806988U patent/JPH0628841Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0628841Y2 (en) | 1994-08-03 |
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