JPS5731206A - Voltage control oscillator - Google Patents

Voltage control oscillator

Info

Publication number
JPS5731206A
JPS5731206A JP10576880A JP10576880A JPS5731206A JP S5731206 A JPS5731206 A JP S5731206A JP 10576880 A JP10576880 A JP 10576880A JP 10576880 A JP10576880 A JP 10576880A JP S5731206 A JPS5731206 A JP S5731206A
Authority
JP
Japan
Prior art keywords
line
point
capacitor
wavelength
oscillation
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
JP10576880A
Other languages
Japanese (ja)
Inventor
Ikuro Ichitsubo
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP10576880A priority Critical patent/JPS5731206A/en
Publication of JPS5731206A publication Critical patent/JPS5731206A/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
    • H03B5/18—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising distributed inductance and capacitance
    • H03B5/1841—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising distributed inductance and capacitance the frequency-determining element being a strip line resonator

Landscapes

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

Abstract

PURPOSE:To reduce the undesired oscillation and at the same time to increase Q, by securing a capacity connection for a varactor diode controlled by the control voltage at an end of a distribution constant line which is longer than 1/4 wavelength and shorter than 1/2 wavelength. CONSTITUTION:An oscillator consisting of the negative resistance is connected to a line 71 via a capacitor 76. The point (e) on the line 71 is turned equivalently into an RF short-circuit face, and a circuit positioned toward the capacitor 76 more than the point (e) functions as series resonance circuit having a line shorter than 1/4 wavelength. Then the capacity of a varactor diode 73 is varied with the control voltage VC, and accordingly the position of the point (e) is shifted. As a result, the length of line is varied to change the frequency of oscillation. The impedance of the point (d) of connection is low with no reduction of Q, and the capacitor 76 is provided at the opposite side to the diode 73. Thus the undesired oscillation can be reduced with a low frequency.
JP10576880A 1980-07-31 1980-07-31 Voltage control oscillator Pending JPS5731206A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10576880A JPS5731206A (en) 1980-07-31 1980-07-31 Voltage control oscillator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10576880A JPS5731206A (en) 1980-07-31 1980-07-31 Voltage control oscillator

Publications (1)

Publication Number Publication Date
JPS5731206A true JPS5731206A (en) 1982-02-19

Family

ID=14416350

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10576880A Pending JPS5731206A (en) 1980-07-31 1980-07-31 Voltage control oscillator

Country Status (1)

Country Link
JP (1) JPS5731206A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59134904A (en) * 1983-01-24 1984-08-02 Nec Corp Voltage controlled oscillator
EP1369989A1 (en) * 2002-05-28 2003-12-10 Murata Manufacturing Co., Ltd. Voltage-controlled oscillator, high-frequency module, and communication apparatus

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59134904A (en) * 1983-01-24 1984-08-02 Nec Corp Voltage controlled oscillator
EP1369989A1 (en) * 2002-05-28 2003-12-10 Murata Manufacturing Co., Ltd. Voltage-controlled oscillator, high-frequency module, and communication apparatus
US6836191B2 (en) 2002-05-28 2004-12-28 Murata Manufacturing Co., Ltd. Voltage-controlled oscillator having a transmission line between a resonator and a variable capacitance diode, high-frequency module including the same, and communication apparatus including the same

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