Noise tolerant voltage controlled oscillator

Details Noise tolerant voltage controlled oscillator Noise tolerant voltage controlled oscillator

2007-11-20

2007-11-20

Kinkead, Arnold (Department: 2817)

Oscillators

With frequency adjusting means

With voltage sensitive capacitor

C331S175000, C331S185000, C331S03600C

Reexamination Certificate

active

11420195

ABSTRACT:
A noise tolerant voltage controlled oscillator is described. The voltage controlled oscillator include a varactor element as part of an LC tank circuit. The varactor element is biased by a bias signal and a bias-dependent control signal. The bias-dependent control signal tunes the LC tank circuit. Because the control signal is bias-dependent, noise and other deleterious influences do not cause the varactor element to deviate in capacitance. Instead, the bias-dependent control signal is a tuning signal that is centered around the bias signal, which allows the varactor element to provide a constant capacitance in the event of a varying bias signal.

REFERENCES:
patent: 6724273 (2004-04-01), Jones

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