Low noise modular parametric amplifier

Details Low noise modular parametric amplifier Low noise modular parametric amplifier

1974-05-31

1976-01-20

Rolinec, R. V.

Amplifiers

Parametric amplifiers

330 49, 330 53, H03F 704

Patent

active

039342085

ABSTRACT:
The low noise parametric amplifier disclosed is a non-cryogenic non-redundant plural stage unit with excess gain such that failure of any one stage results in only minor degradation of signal-to-noise ratio. While the amplifier is of general application, it is specifically intended for use in the receiver of an unattended earth terminal of a satellite communication system. In this environment, reliability is achieved by employing a plurality of cascaded, modular parametric amplifier stages. Each stage includes a varactor diode, a pump circuit with its oscillator, a bias circuit, and temperature stabilizing circuitry employing a Peltier junction. The stages are connected to a multi-port circulator by quick disconnect couplings which permit the modular amplifier stages to be removed and replaced without any interruption in the operation of the amplifier.

REFERENCES:
patent: 3284717 (1966-11-01), Damiano et al.

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