Title :
400 W X-band GaAs MMIC CW amplifier
Author :
Knox, Michael ; Youmans, R. ; Kumar, Manoj ; Forker, L. ; Voigt, Hannes ; Brand, P. ; Marcotte, F. ; Hughes, A.S.
Author_Institution :
Unisys Corp., Great Neck, NY, USA
Abstract :
This paper presents the development of a 400 W CW solid-state amplifier operating over 10.0 to 10.7 GHz band. An output power of 400 W is achieved by combining forty-seven 10 W GaAs MMIC amplifier modules using a 47:1 low-loss waveguide combiner. Other key parameters are the measured AM noise level of -120 dBc/Hz at 1 KHz offset and -137 dBc/Hz at 10 KHz, and FM noise level of -128 dBc/Hz at 1 KHz offset and -142 dBc/Hz at 10 KHz. To the best of the authors´ knowledge, 400 W CW output power at X-band using GaAs MMICs is achieved for the first time.<>
Keywords :
III-V semiconductors; MMIC; MMIC power amplifiers; gallium arsenide; integrated circuit noise; 10.0 to 10.7 GHz; 400 W; AM noise level; FM noise level; GaAs; MMIC CW amplifier; MMIC amplifier modules; X-band; low-loss waveguide combiner; output power; solid-state amplifier; Gallium arsenide; MMICs; Missiles; Noise level; Phased arrays; Power amplifiers; Power generation; Radar tracking; Solid state circuits; Transmitters;
Conference_Titel :
Microwave Symposium Digest, 1995., IEEE MTT-S International
Conference_Location :
Orlando, FL, USA
Print_ISBN :
0-7803-2581-8
DOI :
10.1109/MWSYM.1995.406283
