Injection-locked voltage controlled oscillators

Details Injection-locked voltage controlled oscillators Injection-locked voltage controlled oscillators

1976-03-22

1977-12-13

Grimm, Siegfried H.

Oscillators

Automatic frequency stabilization using a phase or frequency...

Plural a.f.s. for a single oscillator

331 14, 331 18, H03B 304, H03B 306

Patent

active

040631885

ABSTRACT:
An improved frequency memory system of the type using a voltage controlled oscillator is described. Incoming RF signals are power divided with a first power divided portion applied to a frequency discriminator where a voltage level signal indicative of frequency is derived. This voltage level signal is shaped and applied to the volage controlled oscillator wherein the oscillator is broadly tuned to the incoming frequency. A remaining portion of the power divided signal is applied directly to the RF circuit portion of the VCO oscillator to injection lock the VCO oscillator to the incoming signal.

REFERENCES:
patent: 3074027 (1963-01-01), Rout
patent: 3281710 (1966-10-01), Hoover et al.
patent: 3534284 (1970-10-01), Beurrier

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