RF GTWT Saturating circuit

Details RF GTWT Saturating circuit RF GTWT Saturating circuit

1976-09-28

1978-01-03

Griffin, Robert L.

Amplifiers

Signal feedback

Combined with control of bias voltage of signal amplifier

325187, 330 43, 343 177, H04B 104, H01J 2534

Patent

active

040669653

ABSTRACT:
A circuit to control the RF drive to a gridded traveling wave tube (GTWT) to operate the tube in saturation across the entire RF band and at all PRF's and pulse widths. Control is attained by sensing the GTWT output and using a feedback circuit to vary an input variable attenuator to the GTWT based upon whether the output is increasing or decreasing.

REFERENCES:
patent: 2648007 (1953-08-01), Witkowski
patent: 3038068 (1962-06-01), MacDowell et al.
patent: 3123771 (1964-03-01), Poole
patent: 3320536 (1967-05-01), Lockwood
patent: 3943446 (1976-03-01), Quidort
Transmitter System for Spacecraft Tests, by J. A. Knight, Conference: Meeg on Skynet, London, England, 4/20/70, pp. 178-188.
Traveling-Wave Tubes in Missile-Borne Transmitters, by Dr. Libby, Microwave Journal, vol. 19, No. 1, pp. 49-52, Jan. 1976.

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