Voltage control oscillator variable capacitance diode biasing ci

Details Voltage control oscillator variable capacitance diode biasing ci Voltage control oscillator variable capacitance diode biasing ci

1995-03-15

1996-09-24

Mis, David

Oscillators

With frequency adjusting means

With voltage sensitive capacitor

331 36C, 331185, H03B 500

Patent

active

055594794

ABSTRACT:
A voltage control oscillator which has an oscillator circuit comprising at least an inductive resonator, active element, and variable capacitance diode and externally applies a direct current control voltage to the variable capacitance diode through a bias circuit to change an oscillation frequency by altering a capacitance value of the variable capacitance diode with variations of the direct current voltage, comprising bias circuit is a low-pass filter comprising a resistor and a capacitor and the oscillation frequency is set higher than a cut-off frequency of the low-pass filter.

REFERENCES:
patent: 3723906 (1973-03-01), Pederson
patent: 4055822 (1977-10-01), Rinderle
patent: 4064467 (1977-12-01), Kupfer
patent: 4160964 (1979-07-01), Ishikawa et al.
patent: 4550293 (1985-10-01), Driscoll
patent: 4660002 (1987-04-01), Iijima et al.
patent: 4748425 (1988-05-01), Heck

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