Title :
Miniaturized multistage power amplifiers for the 10.95- to 12.75 GHz communications satellite band
Author :
Goettle, P.E. ; Geller, B.D. ; Phelleps, F.R. ; Zaghloul, A.I. ; Sorbello, R.M. ; Assal, F.T.
Author_Institution :
COMSAT Lab., Clarksburg, MD, USA
Abstract :
The authors describe the design and performance of three prototype power amplifiers that use a combination of MMICs (monolithic microwave integrated circuits) and quasi-monolithic circuits. These amplifiers are intended for use in a satellite multibeam phased-array antenna. The amplifiers are designed to maximize DC-to-RF conversion efficiency and linearity while satisfying additional requirements for output power and minimum size. The four-stage, 30 dB gain modules deliver an output power of 2 W at 2 dB compression, with an efficiency of 25% and a two-tone, carrier-to-third-order intermodulation distortion level of 16 dB.<>
Keywords :
microwave amplifiers; microwave integrated circuits; power amplifiers; satellite relay systems; 10.95 to 12.75 GHz; 2 W; 25 percent; 30 dB; MIC; MMICs; SHF; communications satellite band; monolithic microwave integrated circuits; multibeam phased-array antenna; multistage power amplifiers; quasimonolithic circuits; Gain; Linearity; MMICs; Microwave amplifiers; Microwave integrated circuits; Monolithic integrated circuits; Power amplifiers; Power generation; Prototypes; Satellite antennas;
Conference_Titel :
Microwave Symposium Digest, 1991., IEEE MTT-S International
Conference_Location :
Boston, MA, USA
Print_ISBN :
0-87942-591-1
DOI :
10.1109/MWSYM.1991.147223
