JPS56162509A - Mixer circuit - Google Patents

Mixer circuit

Info

Publication number
JPS56162509A
JPS56162509A JP6698080A JP6698080A JPS56162509A JP S56162509 A JPS56162509 A JP S56162509A JP 6698080 A JP6698080 A JP 6698080A JP 6698080 A JP6698080 A JP 6698080A JP S56162509 A JPS56162509 A JP S56162509A
Authority
JP
Japan
Prior art keywords
circuit
diodes
local oscillation
oscillation frequency
lambda
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
JP6698080A
Other languages
Japanese (ja)
Inventor
Hiroyuki Inukai
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.)
Fujitsu General Ltd
Gen Co Ltd
Original Assignee
Fujitsu General Ltd
Gen 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 Fujitsu General Ltd, Gen Co Ltd filed Critical Fujitsu General Ltd
Priority to JP6698080A priority Critical patent/JPS56162509A/en
Publication of JPS56162509A publication Critical patent/JPS56162509A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D9/00—Demodulation or transference of modulation of modulated electromagnetic waves
    • H03D9/06—Transference of modulation using distributed inductance and capacitance
    • H03D9/0608—Transference of modulation using distributed inductance and capacitance by means of diodes

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Superheterodyne Receivers (AREA)

Abstract

PURPOSE:To reduce the leakage of the 2nd local oscillation frequency by converting the intermediate frequency component of a CATV converter into a balanced signal, by applying it to the 2nd mixer circuit, and by connecting a lambda/2 circuit, which tunes to the 2nd local oscillation frequency, to the output of said mixer circuit. CONSTITUTION:An intermediate frequency output fi amplified by an intermediate frequency amplifying circuit 1 is converted by IF coils 10 and 11 into a balanced signal, which is applied to mixer diodes 12 and 13 with the opposite phase. The 2nd local oscillation frequency component f , on the other hand, is picked up by coils 24 and 25 and applied to the diodes 12 and 13 with the same phase. Since the diodes 12 and 13 are connected to both terminals of lambda/2 circuit 14 resonating at the 2nd local oscillation frequency, the diodes generate an out-of-phase voltage (f -fi) and the frequency component f is canceled by the lambda/2 circuit, thus reducing the leakage to an output signal.
JP6698080A 1980-05-20 1980-05-20 Mixer circuit Pending JPS56162509A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6698080A JPS56162509A (en) 1980-05-20 1980-05-20 Mixer circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6698080A JPS56162509A (en) 1980-05-20 1980-05-20 Mixer circuit

Publications (1)

Publication Number Publication Date
JPS56162509A true JPS56162509A (en) 1981-12-14

Family

ID=13331669

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6698080A Pending JPS56162509A (en) 1980-05-20 1980-05-20 Mixer circuit

Country Status (1)

Country Link
JP (1) JPS56162509A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS562618B2 (en) * 1974-04-02 1981-01-21

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS562618B2 (en) * 1974-04-02 1981-01-21

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