Title :
An X-band 2 kW CW GaAs FET power amplifier for continuous wave illuminator application
Author :
Ashoka, H. ; Ness, J. ; Robinson, A. ; Gourlay, M. ; Logan, J. ; Woodhead, P. ; Reuther, D.
Author_Institution :
MITEC Ltd., Brisbane, Qld., Australia
Abstract :
The development of a solid state power amplifier (SSPA) for a continuous wave illuminator (CWI) application at X-band is described. The amplifier produces 2 kW of CW output power at 1 dB gain compression over a 2.5 percent bandwidth with a DC-RF efficiency better than 15 percent. Low-loss power combining is implemented using a hybrid serial and corporate combiner structure in waveguide medium. The SSPA has been designed to operate in environmental conditions specified for naval military vessels.
Keywords :
III-V semiconductors; gallium arsenide; microwave power amplifiers; military equipment; power combiners; 15 percent; 2 kW; CW illuminator application; CW output power; GaAs; GaAs FET power amplifier; SSPA; X-band; continuous wave illuminator; low-loss power combining; naval military vessels; solid state power amplifier; FETs; Gallium arsenide; Klystrons; Monitoring; Performance analysis; Power amplifiers; Power generation; Radio frequency; Radiofrequency amplifiers; Solid state circuits;
Conference_Titel :
Microwave Symposium Digest, 1998 IEEE MTT-S International
Conference_Location :
Baltimore, MD, USA
Print_ISBN :
0-7803-4471-5
DOI :
10.1109/MWSYM.1998.705196
