Title :
A 5.5 watt 20 GHz solid state power amplifier for on-board satellite communication
Author :
Bonecchi, F. ; Negri, L.
Author_Institution :
Siemens Telecomunicazioni SpA, Milan, Italy
Abstract :
A solid state power amplifier for on-board applications in the 20-GHz downlink frequency band is presented. An output power of 5.5 W with 47-dB gain and 17% DC to RF efficiency has been achieved by combining in parallel six 1.0-W power FETs with a novel very low-loss, and extra-small waveguide power divider/combiner. Critical aspects, such as size, weight, thermal dissipation, and hermeticity, have been investigated and optimized.<>
Keywords :
microwave amplifiers; power amplifiers; satellite relay systems; solid-state microwave circuits; waveguide components; 17 percent; 20 GHz; 47 dB; 5.5 W; DC to RF efficiency; downlink frequency band; hermeticity; on-board satellite communication; power FETs; solid state power amplifier; thermal dissipation; waveguide power divider/combiner; FETs; Frequency; Gain; Multichip modules; Power amplifiers; Power generation; Radiofrequency amplifiers; Satellite communication; Solid state circuits; Space exploration;
Conference_Titel :
Microwave Symposium Digest, 1992., IEEE MTT-S International
Conference_Location :
Albuquerque, NM, USA
Print_ISBN :
0-7803-0611-2
DOI :
10.1109/MWSYM.1992.188185
