System and method for wideband, continuous tuning of an oscillat

Details System and method for wideband, continuous tuning of an oscillat System and method for wideband, continuous tuning of an oscillat

1985-03-11

1987-01-13

Grimm, Siegfried H.

Oscillators

Automatic frequency stabilization using a phase or frequency...

Afc with logic elements

331 16, 331 36C, 331177V, H03L 702

Patent

active

046367470

ABSTRACT:
A system and method for continuous tuning of a YIG oscillator over its entire operating range by control of a resolver in a feedback loop around the oscillator. The resolver and a delay line form a phase shift network the output of which is compared in phase with the output of the oscillator, which is also coupled to the input of the resolver, and the phase-difference signal resulting from the phase comparison is coupled to an integrator connected in turn to the tuning signal input of the oscillator. Repetitive operation of the resolver over its operating range enables continuous tuning of the oscillator over its entire operating range.

REFERENCES:
patent: 3614649 (1971-10-01), Gerig
patent: 3855548 (1974-12-01), Nandi et al.
patent: 3936765 (1976-02-01), Lewis et al.
patent: 4070635 (1978-01-01), Healey, III
patent: 4078210 (1978-03-01), Lewis
patent: 4336505 (1982-06-01), Meyer
patent: 4358741 (1982-11-01), Nardin
patent: 4463321 (1984-07-01), Horner

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