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JPS5765903A - Converting circuit for receiving frequency - Google Patents

Converting circuit for receiving frequency

Info

Publication number
JPS5765903A
JPS5765903A JP14202780A JP14202780A JPS5765903A JP S5765903 A JPS5765903 A JP S5765903A JP 14202780 A JP14202780 A JP 14202780A JP 14202780 A JP14202780 A JP 14202780A JP S5765903 A JPS5765903 A JP S5765903A
Authority
JP
Japan
Prior art keywords
terminal
mixer diode
bias voltage
transistor
choke coil
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
JP14202780A
Other languages
Japanese (ja)
Inventor
Satoru Shinozaki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co Ltd
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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP14202780A priority Critical patent/JPS5765903A/en
Publication of JPS5765903A publication Critical patent/JPS5765903A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
    • H03D7/02—Transference of modulation from one carrier to another, e.g. frequency-changing by means of diodes

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Superheterodyne Receivers (AREA)

Abstract

PURPOSE:To simplify the circuit constitution and to reduce power consumption, by using a DC amplifying transistor for a bias circuit. CONSTITUTION:A receiving signal and a local oscillation signal which are applied to a high frequency input terminal 1 are mixed by a mixer diode 2 and are converted to an intermediate frequency signal through a low-pass filter 3 and are taken out through a coupling capacitor 4 from an intermediate frequency output terminal 5. A choke coil 6 sets the anode terminal of the mixer diode 2 to the ground potential, and a negative bias voltage is supplied to the cathode terminal of the mixer diode 2 by a choke coil 7. The bias voltage applied to the mixer diode 2 is given from the emitter terminal of a transistor 8. A voltage measuring terminal 9 is connected to the collector terminal of the transistor 8, and the bias voltage is controlled by a variable resistor 10.
JP14202780A 1980-10-13 1980-10-13 Converting circuit for receiving frequency Pending JPS5765903A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14202780A JPS5765903A (en) 1980-10-13 1980-10-13 Converting circuit for receiving frequency

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14202780A JPS5765903A (en) 1980-10-13 1980-10-13 Converting circuit for receiving frequency

Publications (1)

Publication Number Publication Date
JPS5765903A true JPS5765903A (en) 1982-04-21

Family

ID=15305658

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14202780A Pending JPS5765903A (en) 1980-10-13 1980-10-13 Converting circuit for receiving frequency

Country Status (1)

Country Link
JP (1) JPS5765903A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0831583A1 (en) * 1996-09-19 1998-03-25 Matsushita Electric Industrial Co., Ltd. Microwave mixing circuit and down-converter using the same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0831583A1 (en) * 1996-09-19 1998-03-25 Matsushita Electric Industrial Co., Ltd. Microwave mixing circuit and down-converter using the same
US5890060A (en) * 1996-09-19 1999-03-30 Matsushita Electric Industrial Co., Ltd. Micro-wave mixing circuit and down-flow converter using the same

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