Tunable UHF oscillator with harmonic limitation

Details Tunable UHF oscillator with harmonic limitation Tunable UHF oscillator with harmonic limitation

1978-03-08

1979-03-27

Kominski, John

Oscillators

Solid state active element oscillator

Transistors

331177V, H03B 512

Patent

active

041468503

ABSTRACT:
In a tunable UHF transistor oscillator with a frequency determining resonating LC circuit reduction of the harmonic to fundamental ratio is obtained through the use of an output circuit consisting of an output resistor connected in parallel with a resistor voltage divider a part of which is used as a damping resistor for a second controllable tuned circuit comprising an inductor with a larger inductance than that of the frequency determining circuit and the same capacitance and a non linear circuit between the control voltage source and the adjustable capacitor of said second circuit. The output is taken across the second tuned circuit. Coupling between the transistor and the frequency determining circuit is low.

REFERENCES:
patent: 3103637 (1963-09-01), Pan

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