Title :
L-band 300-Watt solid state pulse power amplifiers for SAR
Author_Institution :
Inst. of Electron., Acad. Sinica, Beijing, China
Abstract :
To meet the special requirement of SAR, a solid state power amplifier, with an integral heat-sink requiring forced air cooling, has been developed. The amplifier delivers 300 Watts of pulsed power output into 1.5:1 load VSWR with 36 dB minimum gain at 28 volt, and provides about eight percent bandwidth (1 dB) while maintaining an efficiency of approximately thirty percent. High reliability, simplicity and model repeatability are featured in this amplifier design. It has an integrated and compact structure. This paper describes the design and development of the amplifier and presents some of important performance data, including some test data
Keywords :
UHF integrated circuits; UHF power amplifiers; geophysical equipment; geophysical techniques; heat sinks; hybrid integrated circuits; impedance matching; integrated circuit packaging; integrated circuit reliability; pulse amplifiers; radar equipment; radar transmitters; radio transmitters; remote sensing by radar; spaceborne radar; synthetic aperture radar; 0.39 to 1.55 GHz; 28 V; 300 W; 36 dB; L-band; SAR; UHF radar; design; electrical amplifier; forced air cooling; geophysical equipment; instrument; integral heat-sink; land surface; measurement technique; radar remote sensing; solid state power amplifier; solid state pulse power amplifiers; spaceborne radar; terrain mapping; Bandwidth; Feeds; High power amplifiers; L-band; Phased arrays; Power amplifiers; Power system reliability; Pulse amplifiers; Radar; Solid state circuits;
Conference_Titel :
Geoscience and Remote Sensing, 1997. IGARSS '97. Remote Sensing - A Scientific Vision for Sustainable Development., 1997 IEEE International
Print_ISBN :
0-7803-3836-7
DOI :
10.1109/IGARSS.1997.615887
