JPS5683103A - Frequency discriminating circuit - Google Patents

Frequency discriminating circuit

Info

Publication number
JPS5683103A
JPS5683103A JP16008579A JP16008579A JPS5683103A JP S5683103 A JPS5683103 A JP S5683103A JP 16008579 A JP16008579 A JP 16008579A JP 16008579 A JP16008579 A JP 16008579A JP S5683103 A JPS5683103 A JP S5683103A
Authority
JP
Japan
Prior art keywords
resonator
lines
signal
line
coupling 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
JP16008579A
Other languages
Japanese (ja)
Other versions
JPS6156888B2 (en
Inventor
Takashi Otobe
Yasutoshi Komatsu
Yoshikazu Murakami
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.)
Sony Corp
Original Assignee
Sony Corp
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 Sony Corp filed Critical Sony Corp
Priority to JP16008579A priority Critical patent/JPS5683103A/en
Publication of JPS5683103A publication Critical patent/JPS5683103A/en
Publication of JPS6156888B2 publication Critical patent/JPS6156888B2/ja
Granted 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
    • H03D9/02—Demodulation using distributed inductance and capacitance, e.g. in feeder lines
    • H03D9/04—Demodulation using distributed inductance and capacitance, e.g. in feeder lines for angle-modulated oscillations

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)

Abstract

PURPOSE:To make the oscillation frequency stable at all times, by performing phase detection for the signal through a coupling circuit between a resonator and a line, with the signal through the coupling circuit between the resonator and the line and picking up the phase difference of both the signals as the frequency discriminating output. CONSTITUTION:To the coupling section between lines 12, 14 and a dielectric resonator 13 for microstrip lines 12 and 14, end opposite to an oscillator FET1 is short-circuited with lines 15a, 15b. Further, a the extension of the lines 12, 14 is made wider to form a 90 deg. hybrid coupler 15. Further, the end of extension of the lines 12, 14 of the coupler is grounded via diodes 16, 17 of opposite polarity. That is, a phase detector 20 is constituted with the coupler 15 and the diodes 16, 17, and a signal through the coupling circuit with the resonator 13 and the line 12 is phase-detected with the signal through the coupling circuit between the resonator 13 and the line 14, and the phase difference between both the signals is picked up as a frequency discriminating output VD. Thus, the oscillated frequency can always be stabilized.
JP16008579A 1979-12-10 1979-12-10 Frequency discriminating circuit Granted JPS5683103A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16008579A JPS5683103A (en) 1979-12-10 1979-12-10 Frequency discriminating circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16008579A JPS5683103A (en) 1979-12-10 1979-12-10 Frequency discriminating circuit

Publications (2)

Publication Number Publication Date
JPS5683103A true JPS5683103A (en) 1981-07-07
JPS6156888B2 JPS6156888B2 (en) 1986-12-04

Family

ID=15707534

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16008579A Granted JPS5683103A (en) 1979-12-10 1979-12-10 Frequency discriminating circuit

Country Status (1)

Country Link
JP (1) JPS5683103A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0091201A1 (en) * 1982-04-01 1983-10-12 British Telecommunications Microwave discriminator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0091201A1 (en) * 1982-04-01 1983-10-12 British Telecommunications Microwave discriminator

Also Published As

Publication number Publication date
JPS6156888B2 (en) 1986-12-04

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