Title :
A Compact 4-GHz Linearize for Space Use
Author :
Inada, Ryuichi ; Ogawa, Hiroshi ; Kitazume, Susumu ; DeSantis, P.
fDate :
12/1/1986 12:00:00 AM
Abstract :
A compact and lightweight 4-GHz linearizer for satellite TWTA´s has been developed by using MIC packages with chip devices. The linearize is composed of a preamplifier, a predistortion Iinearizer, and a limiting ampfifier, consisting of two, three, and three 25x12.5-mm packages, respectively. It improves the noise power ratio for an FM system by 3 dB and the required C/N for a TDMA system by 4.5 dB compared with the conventional satellite TWTA. A space environmental test and an aging test were successfully performed on the equipment.
Keywords :
Aging; Microwave integrated circuits; Packaging machines; Preamplifiers; Predistortion; Satellites; Signal to noise ratio; Testing; Time division multiple access; Working environment noise;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
DOI :
10.1109/TMTT.1986.1133544
