Title :
Pseudomorphic Ku-band GaAs HFET linearizer preamplifier front end for satellite TWT-amplifiers
Author :
Narozny, P. ; Tobler, H. ; Kornfeld, G.K. ; Nunn, R.A. ; Adelseck, B. ; Ludwig, M. ; Eggers, G.
Author_Institution :
Res. Center, Daimler-Benz AG, Ulm, Germany
fDate :
Oct. 29 1995-Nov. 1 1995
Abstract :
A Ku-band GaAs Linearizer Preamplifier Front End (LFE) has been developed for satellite TWT-amplifiers. The LFE is build in hybrid and pseudomorphic HFET MMIC technology. A variable gain MMIC amplifier, two medium power amplifier MMICs, and a power amplifier MMIC are integrated in the Front End. The LFE has been integrated with the short traveling wave tube (STWT). An improvement of 10 dB in the 3rd order intermodulation distance was measured for the LFE/TWT-system.
Keywords :
III-V semiconductors; MMIC power amplifiers; field effect MMIC; gallium arsenide; hybrid integrated circuits; linearisation techniques; preamplifiers; satellite communication; travelling wave amplifiers; travelling wave tubes; 3rd order intermodulation distance; GaAs; Ku-band; MMIC technology; linearizer preamplifier front end; medium power amplifier MMICs; pseudomorphic HFET; satellite TWT amplifiers; short traveling wave tube; variable gain MMIC amplifier; Artificial satellites; Costs; Gallium arsenide; HEMTs; Linearity; MMICs; MODFETs; Noise figure; Power amplifiers; Preamplifiers;
Conference_Titel :
Gallium Arsenide Integrated Circuit (GaAs IC) Symposium, 1995. Technical Digest 1995., 17th Annual IEEE
Conference_Location :
San Diego, CA, USA
Print_ISBN :
0-7803-2966-X
DOI :
10.1109/GAAS.1995.529014
