JPS57131130A - High frequency signal generating device - Google Patents

High frequency signal generating device

Info

Publication number
JPS57131130A
JPS57131130A JP56016459A JP1645981A JPS57131130A JP S57131130 A JPS57131130 A JP S57131130A JP 56016459 A JP56016459 A JP 56016459A JP 1645981 A JP1645981 A JP 1645981A JP S57131130 A JPS57131130 A JP S57131130A
Authority
JP
Japan
Prior art keywords
high frequency
frequency signal
voltage
frequency
difference
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
JP56016459A
Other languages
Japanese (ja)
Inventor
Junichi Shimoda
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 JP56016459A priority Critical patent/JPS57131130A/en
Publication of JPS57131130A publication Critical patent/JPS57131130A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L7/00—Automatic control of frequency or phase; Synchronisation
    • H03L7/02—Automatic control of frequency or phase; Synchronisation using a frequency discriminator comprising a passive frequency-determining element

Landscapes

  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)

Abstract

PURPOSE:To generate a high frequency signal in a stable oscillation frequency, by controlling the oscillation frequency in accordance with a difference between the first value corresponding to a variation portion of the oscillation frequency, and the second value corresponding to frequency required for a load. CONSTITUTION:A high frequency signal generated from a high frequency signal generator 2' is inputted to one input terminal of a mixer 13 through a directional coupler 3'. To the other input terminal of the mixer 13, a prescribed high frequency signal is inputted from a crystal oscillator 14, frequency of its difference is inputted to a frequency-to-voltage converter 15 and is converted to a voltage value. This voltage value is inputted to the first differential amplifier 21, and voltage of a difference between said voltage value and a voltage value corresponding to a difference between the oscillation frequency initialized to the high frequency signal generator 2' and the oscillation frequency of the crystal oscillator 14 is outputted. Furthermore, in the second differential amplifier 26, voltage of a difference between said voltage value and a voltage value corresponding to a normal measuring frequency is outputted, and an output frequency of the high frequency signal generator 2' is controlled by applying said differential voltage to a control part 28.
JP56016459A 1981-02-06 1981-02-06 High frequency signal generating device Pending JPS57131130A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56016459A JPS57131130A (en) 1981-02-06 1981-02-06 High frequency signal generating device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56016459A JPS57131130A (en) 1981-02-06 1981-02-06 High frequency signal generating device

Publications (1)

Publication Number Publication Date
JPS57131130A true JPS57131130A (en) 1982-08-13

Family

ID=11916826

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56016459A Pending JPS57131130A (en) 1981-02-06 1981-02-06 High frequency signal generating device

Country Status (1)

Country Link
JP (1) JPS57131130A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62132426A (en) * 1985-12-04 1987-06-15 Fujitsu Ltd Broad band microwave oscillation circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62132426A (en) * 1985-12-04 1987-06-15 Fujitsu Ltd Broad band microwave oscillation circuit

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