JPS5726904A - Signal generator - Google Patents

Signal generator

Info

Publication number
JPS5726904A
JPS5726904A JP10201480A JP10201480A JPS5726904A JP S5726904 A JPS5726904 A JP S5726904A JP 10201480 A JP10201480 A JP 10201480A JP 10201480 A JP10201480 A JP 10201480A JP S5726904 A JPS5726904 A JP S5726904A
Authority
JP
Japan
Prior art keywords
frequency
output
signal generator
interval
controlled oscillator
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
JP10201480A
Other languages
Japanese (ja)
Inventor
Takenori Kurihara
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.)
Advantest Corp
Original Assignee
Advantest Corp
Takeda Riken Industries 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 Advantest Corp, Takeda Riken Industries Co Ltd filed Critical Advantest Corp
Priority to JP10201480A priority Critical patent/JPS5726904A/en
Publication of JPS5726904A publication Critical patent/JPS5726904A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B21/00—Generation of oscillations by combining unmodulated signals of different frequencies
    • H03B21/01—Generation of oscillations by combining unmodulated signals of different frequencies by beating unmodulated signals of different frequencies
    • H03B21/02—Generation of oscillations by combining unmodulated signals of different frequencies by beating unmodulated signals of different frequencies by plural beating, i.e. for frequency synthesis ; Beating in combination with multiplication or division of frequency

Landscapes

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

Abstract

PURPOSE:To change a high frequency in a small frequency interval, by providing three variable frequency signal generators which make frequency-convert the output of a voltage controlled oscillator sequentially and decrease the frequency. CONSTITUTION:The output from a voltage controlled oscillator 11 is frequency- converted with the output of the 1st variable frequency signal generator 21 in which the frequency is changed in a comparatively large interval. The output reduced for the frequency at the 1st frequency converter 19 is frequency-converted with the output of the 2nd variable frequency signal generator 23 in which the frequency can be changed in smaller interval then that of the 1st generator. The output of the 2nd frequency converter 22 is compared 24 for the phase with the output of the 3rd variable frequency signal generator 25 having a further smaller frequency interval. The output of the phase comparator 24 is added with a DC output from a frequency setter 27 at an adder 26 and the result is applied to the voltage controlled oscillator as a control signal.
JP10201480A 1980-07-24 1980-07-24 Signal generator Pending JPS5726904A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10201480A JPS5726904A (en) 1980-07-24 1980-07-24 Signal generator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10201480A JPS5726904A (en) 1980-07-24 1980-07-24 Signal generator

Publications (1)

Publication Number Publication Date
JPS5726904A true JPS5726904A (en) 1982-02-13

Family

ID=14315897

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10201480A Pending JPS5726904A (en) 1980-07-24 1980-07-24 Signal generator

Country Status (1)

Country Link
JP (1) JPS5726904A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59131184A (en) * 1982-09-20 1984-07-27 レイセオン　カンパニ− Radar-transmitter

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59131184A (en) * 1982-09-20 1984-07-27 レイセオン　カンパニ− Radar-transmitter

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