Oscillating circuit for suppressing second harmonic wave

Details Oscillating circuit for suppressing second harmonic wave Oscillating circuit for suppressing second harmonic wave

2008-05-06

2008-05-06

Chang, Joseph (Department: 2817)

Oscillators

L-c type oscillators

C331S1170FE

Reexamination Certificate

active

07369007

ABSTRACT:
An oscillating circuit includes an oscillating transistor in which the collector or the base is grounded in a high-frequency manner, and a bias resistor connects the emitter of the oscillating transistor to a ground in a direct-current manner. In the oscillating circuit, a resonance unit, having maximum impedance at the oscillation frequency, is interposed between the bias resistor and the ground. Thus, an oscillation signal is obtained from the connection point between the bias resistor and the resonance unit.

REFERENCES:
patent: 5576667 (1996-11-01), Goma
patent: 5856763 (1999-01-01), Reeser et al.
patent: 6326854 (2001-12-01), Nicholls et al.
patent: 6456169 (2002-09-01), Oshita et al.
patent: 2002/0158695 (2002-10-01), Lazarescu
patent: 08-148933 (1996-06-01), None

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