Amplifiers – With semiconductor amplifying device – Including plural amplifier channels
Patent
1995-05-15
1996-10-01
Mottola, Steven
Amplifiers
With semiconductor amplifying device
Including plural amplifier channels
330297, 330286, H03F 368, H03F 360
Patent
active
055613977
ABSTRACT:
A solid state amplifier for a microwave transmitter includes a power divider wherein a signal to be amplified is divided into signals of equal signal levels. The equal level signals are respectively coupled to a plurality of amplifiers wherefrom the amplified signals are coupled to a combiner wherein the amplified signals are added and signal sum provided at an output terminal of the combiner. Each of the amplifiers may be comprised of a first stage amplifier, the output signal of which is coupled to a multiplicity of component amplifiers which, in tern, are coupled to a the output terminal of the first stage amplifier via a second power divider wherefrom signals of equal level are provided to the component amplifiers. Bias voltages are provided to the amplifiers via a modularized power supply having some modules with redundant converters.
REFERENCES:
patent: 4926136 (1990-05-01), Olver
patent: 5256987 (1993-10-01), Kibayashi et al.
Rivera, D. J. "An S-Band Solid State Transmitter For Aiport Survellance Radars", IEEE Nat'l Radar Conference, 1993.
Skolnik, M. I. Radar Handbook, 2nd Edition, Chapter 5 McGraw-Hill, New York, 1990.
Knox Michael E.
Kumar Mahesh
Youmans Russel
Levine Seymour
Mottola Steven
Starr Mark T.
Unisys Corporation
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