Injection locked high frequency oscillator

Details Injection locked high frequency oscillator Injection locked high frequency oscillator

2006-12-05

2006-12-05

Pascal, Robert (Department: 2817)

Oscillators

With distributed parameter resonator

C331S056000, C331S1070DP, C331S1070SL, C331S1070DP, C331S1170FE, C333S219100

Reexamination Certificate

active

07145404

ABSTRACT:
A push-push high frequency oscillator comprises a pair of amplifiers for oscillation, a loop-shaped microstrip line for connecting inputs of the pair of amplifiers to each other and connecting outputs of the pair of amplifiers to each other, a slot line disposed between the inputs and the outputs of the pair of amplifiers for electromagnetically coupling with the microstrip line, a nonlinear circuit for enhancing the level of harmonic components in an applied synchronization signal, a coupler circuit for electromagnetically coupling the output of the nonlinear circuit to the microstrip line, and a filter circuit disposed at the output of the nonlinear circuit. The filter circuit filters harmonic components of the synchronization signal such that the two oscillation systems are injected with the same frequency components as the fundamental wave or frequency components twice as high as the fundamental wave to increase frequency stability.

REFERENCES:
patent: 6703904 (2004-03-01), Aikawa et al.
patent: 2004/0233004 (2004-11-01), Asamura et al.
patent: 2004-096693 (2004-03-01), None

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