Low phase noise two port voltage controlled oscillator

Details Low phase noise two port voltage controlled oscillator Low phase noise two port voltage controlled oscillator

1986-01-06

1987-08-04

LaRoche, Eugene R.

Oscillators

Solid state active element oscillator

Transistors

331177V, H03B 512

Patent

active

046849041

ABSTRACT:
A low noise two port voltage controlled oscillator having a coarse tuning circuit serially connected to an inductor to form a resonant circuit. A fine tuning circuit is serially connected between the resonant circuit and the input to the amplifier. A large capacitance series silicon varactor minimizes noise at the frequency of operation while optimizing the coarse tuning range.

REFERENCES:
patent: 4075580 (1978-02-01), Sunkler
patent: 4246550 (1981-01-01), Cohen
patent: 4310809 (1982-01-01), Buck et al.
patent: 4450416 (1984-05-01), Mears
patent: 4481487 (1984-11-01), Brehm et al.
patent: 4484157 (1984-11-01), Helle et al.
patent: 4574256 (1986-03-01), Singh

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