Amplifiers – Hum or noise or distortion bucking introduced into signal...
Patent
1996-08-01
1998-04-07
Mottola, Steven
Amplifiers
Hum or noise or distortion bucking introduced into signal...
330124R, H03F 132
Patent
active
057368988
ABSTRACT:
A process for linearizing the gain and phase-frequency characteristics of traveling-wave tubes and transistor amplifiers at different power levels is suggested, wherein the signal is divided between two branches and again united into the output signal, and in which the signal is divided between partial networks with compressing gain behavior, which are placed between two 3-dB couplers, and gain compression or gain expansion of the partial signals (E or K) is generated at two gates (KOMP, EXP) by the reflection behavior, which is different corresponding to the signal level, and the level of the nonlinear, gain-expanded partial signal (E) is raised by a linear amplifier (E2), and the additionally amplified, gain-expanded signal (E2) and the gain-compressed signal (K) are then united into the output signal with an adding network.
REFERENCES:
patent: 4878030 (1989-10-01), Vincze
patent: 5291148 (1994-03-01), Reisner et al.
J. Maynard, et al. May 1994 Fully MMIC Ku-Band and C-Band CAMP/Linearizers for TWTAs Proceedings of the SPACE TWTAs 1994 Workshop ESA WPP-072.
A. J. Khilla May 1994 Linearization of Power Amplifiers for Satellite Application Proceedings of the SPACE TWTAs 1994 Workshop ESA WPP-072.
A. Berman et al., 1992, Linearized Microwave Amplifiers, 14th International Communications Satellite Systems Conference, Washington, DC, AIAA-92-1864-CP.
G. Satoh, Oct. 1979 (1981), Linearizer for High-Power Traveling Wave Tube Amplifier, Electronics and Communications in Japan, vol. 62, p. 72.80.
S. S. Moochalla, et al., 1992, A Integrated Ku-Ban Linearizer Driver Amplifier for TWTA's with High Grain and Wide Bandwidth, 14th International Communications Satellite Systems Conference, Washington, Dc, AIAA-92-1825-CP.
Eggers Gerhard
Kohl Rudolf
Daimler-Benz Aerospace AG
Mottola Steven
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