JPS5673906A - Microwave oscillator - Google Patents

Microwave oscillator

Info

Publication number
JPS5673906A
JPS5673906A JP15031179A JP15031179A JPS5673906A JP S5673906 A JPS5673906 A JP S5673906A JP 15031179 A JP15031179 A JP 15031179A JP 15031179 A JP15031179 A JP 15031179A JP S5673906 A JPS5673906 A JP S5673906A
Authority
JP
Japan
Prior art keywords
inductance
resistor
circuit
oscillation
commonly
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
JP15031179A
Other languages
Japanese (ja)
Inventor
Nobutoshi Fukuden
Osahisa Furuya
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP15031179A priority Critical patent/JPS5673906A/en
Publication of JPS5673906A publication Critical patent/JPS5673906A/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
    • H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
    • H03B5/08—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance
    • H03B5/12—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device
    • H03B5/1203—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device the amplifier being a single transistor
    • 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
    • H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
    • H03B5/08—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance
    • H03B5/12—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device
    • H03B5/1228—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device the amplifier comprising one or more field effect transistors

Landscapes

  • Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)

Abstract

PURPOSE:To simplify the circuit, by commonly using a feedback circuit and a DC bias circuit, through sufficient small inductance component between the source and ground. CONSTITUTION:For the oscillation in frequency (f), an inductance 13 must be sufficiently smaller from the conditions of resonance. The value of the inductance 13 is taken as a value given as a lead of a resistor 14. That is, when a resistor 14 is <=100OMEGA, the inductance 13 is selected as 0.1-1nH and the impedance consisting of the resistor 14, inductance 13 and capacitor 15 is taken as >=5OMEGA, then a DC bias circuit and a feedback circuit can commonly be used. Thus, the oscillation with a positive feedback can be made.
JP15031179A 1979-11-20 1979-11-20 Microwave oscillator Pending JPS5673906A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15031179A JPS5673906A (en) 1979-11-20 1979-11-20 Microwave oscillator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15031179A JPS5673906A (en) 1979-11-20 1979-11-20 Microwave oscillator

Publications (1)

Publication Number Publication Date
JPS5673906A true JPS5673906A (en) 1981-06-19

Family

ID=15494234

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15031179A Pending JPS5673906A (en) 1979-11-20 1979-11-20 Microwave oscillator

Country Status (1)

Country Link
JP (1) JPS5673906A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59204289A (en) * 1983-05-09 1984-11-19 Toshiba Corp Double terminal negative resistance element
JPS63206009A (en) * 1987-02-20 1988-08-25 Fujitsu General Ltd Voltage controlled oscillation circuit
US4768079A (en) * 1984-08-07 1988-08-30 M/A Com, Inc. Field effect transistor device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59204289A (en) * 1983-05-09 1984-11-19 Toshiba Corp Double terminal negative resistance element
US4768079A (en) * 1984-08-07 1988-08-30 M/A Com, Inc. Field effect transistor device
JPS63206009A (en) * 1987-02-20 1988-08-25 Fujitsu General Ltd Voltage controlled oscillation circuit

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