JPS5675710A - Frequency converter - Google Patents

Frequency converter

Info

Publication number
JPS5675710A
JPS5675710A JP15339479A JP15339479A JPS5675710A JP S5675710 A JPS5675710 A JP S5675710A JP 15339479 A JP15339479 A JP 15339479A JP 15339479 A JP15339479 A JP 15339479A JP S5675710 A JPS5675710 A JP S5675710A
Authority
JP
Japan
Prior art keywords
diode
band
filter
signal band
impedance viewed
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
JP15339479A
Other languages
Japanese (ja)
Inventor
Junichi Ikeda
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.)
Sumitomo Electric Industries Ltd
Original Assignee
Sumitomo Electric Industries 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 Sumitomo Electric Industries Ltd filed Critical Sumitomo Electric Industries Ltd
Priority to JP15339479A priority Critical patent/JPS5675710A/en
Publication of JPS5675710A publication Critical patent/JPS5675710A/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
    • H03D7/18—Modifications of frequency-changers for eliminating image frequencies

Landscapes

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

Abstract

PURPOSE:To reduce the loss at the input side, by making open the impedance viewed from a mixing diode to the band-pass filter of a local oscillation signal against the reception signal band and making short that against the image frequency signal band. CONSTITUTION:Between a mixing diode 1 and a band-pass filter 2, the length of a transmission line 9, that is, the electric distance between the diode 1 and the filter 2 can be selected so that the impedance viewed from the diode 1 to the filter 2 is in a short circuit at the reception signal band and in an open circuit at the image frequency signal band. Further, between the diode 1 and the band block filter 3, the impedance viewed from the diode 1 to the filter 3 is made to a short circuit at the local oscillation signal band.
JP15339479A 1979-11-27 1979-11-27 Frequency converter Pending JPS5675710A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15339479A JPS5675710A (en) 1979-11-27 1979-11-27 Frequency converter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15339479A JPS5675710A (en) 1979-11-27 1979-11-27 Frequency converter

Publications (1)

Publication Number Publication Date
JPS5675710A true JPS5675710A (en) 1981-06-23

Family

ID=15561526

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15339479A Pending JPS5675710A (en) 1979-11-27 1979-11-27 Frequency converter

Country Status (1)

Country Link
JP (1) JPS5675710A (en)

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