JPS55147837A - Microwave oscillator - Google Patents

Microwave oscillator

Info

Publication number
JPS55147837A
JPS55147837A JP5531379A JP5531379A JPS55147837A JP S55147837 A JPS55147837 A JP S55147837A JP 5531379 A JP5531379 A JP 5531379A JP 5531379 A JP5531379 A JP 5531379A JP S55147837 A JPS55147837 A JP S55147837A
Authority
JP
Japan
Prior art keywords
frequency
input
pll circuit
oscillation
resonator
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
JP5531379A
Other languages
Japanese (ja)
Inventor
Motoi Shiraishi
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.)
Oki Electric Industry Co Ltd
Original Assignee
Oki Electric Industry 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 Oki Electric Industry Co Ltd filed Critical Oki Electric Industry Co Ltd
Priority to JP5531379A priority Critical patent/JPS55147837A/en
Publication of JPS55147837A publication Critical patent/JPS55147837A/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
    • H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
    • H03L7/16—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop
    • H03L7/18—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop
    • H03L7/183—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop a time difference being used for locking the loop, the counter counting between fixed numbers or the frequency divider dividing by a fixed number

Landscapes

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

Abstract

PURPOSE:To make it possible to use a cheap resonator and oscillate stably with a high frequency, by subjecting the oscillation frequency to feedback control by a PLL circuit. CONSTITUTION:The signal oscillated with frequency f1 by oscillation element 13 is stabilized to a certain degree by resonator 12. A part of f1 is input to the second oscillator 17 through line 21 by directional coupler 14, and a frequency is oscillated with f2=f1/N (N is a natural number), and this output is input to PLL circuit 18. This input frequency and the reference frequency of the crystal oscillator in PLL circuit 18 are compared with each other, and the DC voltage of their difference is applied to varactor diode 22 for resonance frequency adjustment through line 20, thus keeping frequency change of oscillation frequency f1 similar to the reference crystal frequency.
JP5531379A 1979-05-08 1979-05-08 Microwave oscillator Pending JPS55147837A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5531379A JPS55147837A (en) 1979-05-08 1979-05-08 Microwave oscillator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5531379A JPS55147837A (en) 1979-05-08 1979-05-08 Microwave oscillator

Publications (1)

Publication Number Publication Date
JPS55147837A true JPS55147837A (en) 1980-11-18

Family

ID=12995061

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5531379A Pending JPS55147837A (en) 1979-05-08 1979-05-08 Microwave oscillator

Country Status (1)

Country Link
JP (1) JPS55147837A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62258504A (en) * 1986-03-14 1987-11-11 バウマー　エレクトリク　アクチエンゲゼルシャフト Microwave oscillator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62258504A (en) * 1986-03-14 1987-11-11 バウマー　エレクトリク　アクチエンゲゼルシャフト Microwave oscillator

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