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

fYear

1991

fDate

10-14 July 1991

Firstpage

1157

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Symposium Digest, 1991., IEEE MTT-S International

Conference_Location

Boston, MA, USA

ISSN

0149-645X

Print_ISBN

0-87942-591-1

Type

conf

DOI

10.1109/MWSYM.1991.147223

Filename

147223