JPS60112132U - receiving device - Google Patents

receiving device

Info

Publication number
JPS60112132U
JPS60112132U JP20357483U JP20357483U JPS60112132U JP S60112132 U JPS60112132 U JP S60112132U JP 20357483 U JP20357483 U JP 20357483U JP 20357483 U JP20357483 U JP 20357483U JP S60112132 U JPS60112132 U JP S60112132U
Authority
JP
Japan
Prior art keywords
diode
agc voltage
circuit
receiving device
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
Application number
JP20357483U
Other languages
Japanese (ja)
Inventor
矢神　平八郎
Original Assignee
パイオニア株式会社
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by パイオニア株式会社 filed Critical パイオニア株式会社
Priority to JP20357483U priority Critical patent/JPS60112132U/en
Publication of JPS60112132U publication Critical patent/JPS60112132U/en
Pending legal-status Critical Current

Links

Landscapes

  • Control Of Amplification And Gain Control (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)

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

【図面の簡単な説明】[Brief explanation of drawings]

第１図及び第２図は従来例を示す回路図、並びに第３図
は本考案の実施例を示す回路図である。 １・・・・・・アンテナ、３・・・・・・アンテナ同調
回路、１０・・・・・・ＰＩＮダイオード、１１・・・
・・・抵抗、１３・・・・・・可変容量ダイオード。1 and 2 are circuit diagrams showing a conventional example, and FIG. 3 is a circuit diagram showing an embodiment of the present invention. 1...Antenna, 3...Antenna tuning circuit, 10...PIN diode, 11...
...Resistor, 13...Variable capacitance diode.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] ＡＧＣ電圧により制御されるＰＩＮダイオードを用いた
減衰回路をアンテナ入力段に設けて該アンテナ入力段で
利得制御を行うようにした受信装置において、アンテナ
同調回路の前段に該回路と直列に可変容量ダイオードを
挿入し、該可変容量ダイオードに前記減衰回路のＰＩＮ
ダイオードを制御するＡＧＣ電圧を加えるようになし、
ＡＧＣ電圧による該可変容量ダイオードの容量変化によ
り、ＡＧＣ電圧によるＰＩＮダイオードの制御によって
生じるアンテナ回路のインピーダンス変化を補正するよ
うにしたことを特徴とする受信装置。In a receiving device in which an attenuation circuit using a PIN diode controlled by an AGC voltage is provided at an antenna input stage to perform gain control at the antenna input stage, a variable capacitance diode is installed in series with the circuit before the antenna tuning circuit. and connect the PIN of the attenuation circuit to the variable capacitance diode.
Add AGC voltage to control the diode,
1. A receiving device characterized in that an impedance change in an antenna circuit caused by controlling a PIN diode using an AGC voltage is corrected by a capacitance change of the variable capacitance diode caused by an AGC voltage.
JP20357483U 1983-12-29 1983-12-29 receiving device Pending JPS60112132U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP20357483U JPS60112132U (en) 1983-12-29 1983-12-29 receiving device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP20357483U JPS60112132U (en) 1983-12-29 1983-12-29 receiving device

Publications (1)

Publication Number Publication Date
JPS60112132U true JPS60112132U (en) 1985-07-30

Family

ID=30765980

Family Applications (1)

Application Number Title Priority Date Filing Date
JP20357483U Pending JPS60112132U (en) 1983-12-29 1983-12-29 receiving device

Country Status (1)

Country Link
JP (1) JPS60112132U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008035419A (en) * 2006-07-31 2008-02-14 Mitsumi Electric Co Ltd Fm amplifier for car radio and fm receiver having it
WO2009084098A1 (en) * 2007-12-27 2009-07-09 Mitsumi Electric Co., Ltd. Fm amplifier for car radio and fm receiver with the same
JP2010074395A (en) * 2008-09-17 2010-04-02 Sharp Corp Tuner module for receiving tv broadcast, and tv broadcast receiver with the same

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008035419A (en) * 2006-07-31 2008-02-14 Mitsumi Electric Co Ltd Fm amplifier for car radio and fm receiver having it
WO2009084098A1 (en) * 2007-12-27 2009-07-09 Mitsumi Electric Co., Ltd. Fm amplifier for car radio and fm receiver with the same
JP2010074395A (en) * 2008-09-17 2010-04-02 Sharp Corp Tuner module for receiving tv broadcast, and tv broadcast receiver with the same

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