Wideband VCO including variable capacitive output coupling varac

Details Wideband VCO including variable capacitive output coupling varac Wideband VCO including variable capacitive output coupling varac

1982-06-28

1984-11-13

Grimm, Siegfried H.

Oscillators

With distributed parameter resonator

Coaxial or shielded line type

331107C, 331177V, 332 30V, H03B 714, H03B 914

Patent

active

044828713

ABSTRACT:
A wideband VCO including a coaxial cavity with a negative impedance semiconductor diode and a tuning varactor mounted in a center conductor thereof. A variable bias circuit connected to the tuning varactor for tuning the VCO through a predetermined range. An output probe including a coupling varactor in contact with the center conductor. The variable bias circuit is coupled to the coupling varactor to alter the output coupling capacity as the frequency of the oscillator changes so that the output power remains substantially constant.

REFERENCES:
patent: 3599118 (1971-08-01), Large
patent: 3665339 (1972-05-01), Liu
patent: 3789322 (1974-01-01), Reynolds

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