JPS57178404A - Frequency converting circuit - Google Patents

Frequency converting circuit

Info

Publication number
JPS57178404A
JPS57178404A JP6289881A JP6289881A JPS57178404A JP S57178404 A JPS57178404 A JP S57178404A JP 6289881 A JP6289881 A JP 6289881A JP 6289881 A JP6289881 A JP 6289881A JP S57178404 A JPS57178404 A JP S57178404A
Authority
JP
Japan
Prior art keywords
coaxial line
terminal
connection point
frequency
converting circuit
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
Application number
JP6289881A
Other languages
Japanese (ja)
Other versions
JPS6310608B2 (en
Inventor
Yutaka Sasaki
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 JP6289881A priority Critical patent/JPS57178404A/en
Publication of JPS57178404A publication Critical patent/JPS57178404A/en
Publication of JPS6310608B2 publication Critical patent/JPS6310608B2/ja
Granted 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

Landscapes

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

Abstract

PURPOSE:To decrease the number of adjustment stages by simplifying constitution by omitting one filter from a frequency converting circuit. CONSTITUTION:An input signal is supplied to a terminal 18 and then reaches one terminal of a coaxial line 13 through a band-pass filter 12. The output of a local oscillator 11, on the other hand, is supplied to one terminal 20 of a coaxial line 15. The other-end terminals of the coaxial lines 13 and 15 are connected together at a connection point 17 and then connected to a frequency mixer 16. When the side of the filter 12 is viewed from the connection point 17, the length of the coaxial line 13 is so set that its impedance is nearly infinite at a local oscillation frequency. When the side of the local oscillator 11 is viewed from the connection point 17, on the other hand, the length of the coaxial line 15 is so set that its impedance is nearly infinite at an input signal frequency.
JP6289881A 1981-04-24 1981-04-24 Frequency converting circuit Granted JPS57178404A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6289881A JPS57178404A (en) 1981-04-24 1981-04-24 Frequency converting circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6289881A JPS57178404A (en) 1981-04-24 1981-04-24 Frequency converting circuit

Publications (2)

Publication Number Publication Date
JPS57178404A true JPS57178404A (en) 1982-11-02
JPS6310608B2 JPS6310608B2 (en) 1988-03-08

Family

ID=13213521

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6289881A Granted JPS57178404A (en) 1981-04-24 1981-04-24 Frequency converting circuit

Country Status (1)

Country Link
JP (1) JPS57178404A (en)

Also Published As

Publication number Publication date
JPS6310608B2 (en) 1988-03-08

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