Voltage controlled oscillator and sensitivity adjustment

Details Voltage controlled oscillator and sensitivity adjustment Voltage controlled oscillator and sensitivity adjustment

1997-07-28

1998-12-22

Mis, David

Oscillators

With frequency adjusting means

With voltage sensitive capacitor

331 96, 331117D, 331175, H03B 518

Patent

active

058523880

ABSTRACT:
A voltage controlled oscillator including a resonator which generates an oscillation signal, a frequency of which is in response to a control signal, and an amplifier which amplifies the oscillation signal. Also included is a frequency adjusting mechanism, as well as a voltage control sensitivity mechanism. In one example, the resonator includes an input terminal to which the control signal is applied, a variable capacitance diode and a main inductor. The oscillation frequency adjusting mechanism includes a first variable capacitor, arranged in parallel with the main inductor of the resonator. In addition, the voltage control sensitivity adjusting mechanism includes a second variable capacitor arranged between the input terminal and the amplifying mechanism, and also arranged between a hot terminal of the variable capacitance diode and a hot terminal of the main inductor.

REFERENCES:
patent: 4375621 (1983-03-01), Schneiter et al.
patent: 4450416 (1984-05-01), Mears
patent: 4990866 (1991-02-01), Martheli
patent: 5083098 (1992-01-01), Alidio et al.
patent: 5532651 (1996-07-01), Jager et al.

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