Injection mode steering oscillator

Details Injection mode steering oscillator Injection mode steering oscillator

2005-12-20

2005-12-20

Mis, David (Department: 2817)

Oscillators

With synchronizing, triggering or pulsing circuits

Triggering or pulsing

C331S055000, C331S158000, C331S172000

Reexamination Certificate

active

06977557

ABSTRACT:
A means is provided to establish oscillations on a particular mode or resonance of a quartz crystal in a crystal oscillator and to discriminate against other modes. This is done by injecting a signal close in frequency to the desired mode until oscillation have been established and saturation of the active element has occurred. The limiting process then discriminates against the unwanted modes and holds the oscillation on the desired mode.

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Cunningham, W.J.,Introduction To Nonlinear Analysis, McGraw-Hill Book Company, New York, 1958, pp 213-220.
Kurokawa, K., “Injection Locking of Microwave Solid-State Oscillator,”, Proc. of the IEEE, v61, Oct. 10, 1973, pp 1385-1410.
Berenguer, J. et al., “Improvement of the Pull-In Range and Acquisition Time of a Microwave P.P.L. System By Injection Locking the V.C.O.,”, Proc. of the 41stAnnual Frequency Control Symposium, Philadelphia, pp 524-526.

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