High speed voltage tunable frequency filter or frequency generat

Details High speed voltage tunable frequency filter or frequency generat High speed voltage tunable frequency filter or frequency generat

1983-08-22

1986-04-15

LaRoche, Eugene

Oscillators

With synchronizing, triggering or pulsing circuits

331177R, H03B 2102

Patent

active

045830606

ABSTRACT:
A frequency generator or filter which includes a signal source of simultaneous multiple frequencies, a voltage controlled oscillator (VCO), a circulator coupled between the signal source and frequency terminal of the VCO and a source of control voltage signals coupled to the control voltage terminal of the VCO. A control voltage corresponding to a desired one of the frequencies produced by the signal source is applied to the VCO causing it to produce a frequency approximating the desired frequency. Then the signal from the frequency source injection locks the VCO to exactly the desired frequency.

REFERENCES:
patent: 3626315 (1971-12-01), Stirling
patent: 4063188 (1977-12-01), Mawhinney
patent: 4357580 (1982-11-01), Mawhinney
patent: 4365211 (1982-12-01), Lee

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