Angle servo preamplifier

Details Angle servo preamplifier Angle servo preamplifier

1978-06-08

1979-12-11

Tubbesing, T. H.

Communications: radio wave antennas

Antennas

Balanced doublet - centerfed

G01S 314

Patent

active

041785940

ABSTRACT:
An angle servo preamplifier for use in the tracking antenna servo drive sem of a precision tracking radar system. The angle servo preamplifier processes tracking error signals indicative of tracking antenna pointing errors with respect to a target. The preamplifier is comprised of an input differential amplifier stage, a phase control stage, a sample and hold stage and a power amplifier stage. In addition, interfacing circuitry is included for coupling the preamplifier to the azimuth/secant correction system of the tracking radar system. The sample and hold stage includes "deglitching" circuitry for suppressing sampling/switching transients. And, to accommodate a bipolar tracking error signal while utilizing a single voltage supply, the power amplifier stage performs d.c. level translation.

REFERENCES:
patent: 3137848 (1964-06-01), May
patent: 3206753 (1965-09-01), McCoy
patent: 3239836 (1966-03-01), Chubb et al.
patent: 3365715 (1968-01-01), Stoney
patent: 3728723 (1973-04-01), Gellekink
patent: 3934250 (1976-01-01), Martin, Jr.

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