A compact 4-GHz linearizer for space use

A compact and lightweight 4-GHz linearizer for satellite TWTA's has been developed by using MIC packages with chip devices. The linearizer is composed of a preamplifier, a predistortion linearizer, and a limiting amplifier, consisting of two-, three, and three 25 x 12.5-mm packages, respectivel...

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Veröffentlicht in:	IEEE transactions on microwave theory and techniques 1986-12, Vol.34 (12), p.1327-1332
Hauptverfasser:	INADA, R, OGAWA, H, KITAZUME, S, DESANTIS, P
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences Circuit properties Electric, optical and optoelectronic circuits Electronics Exact sciences and technology Microwave circuits, microwave integrated circuits, microwave transmission lines, submillimeter wave circuits
Online-Zugang:	Volltext
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Beschreibung
Zusammenfassung:	A compact and lightweight 4-GHz linearizer for satellite TWTA's has been developed by using MIC packages with chip devices. The linearizer is composed of a preamplifier, a predistortion linearizer, and a limiting amplifier, consisting of two-, three, and three 25 x 12.5-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. (Author)
ISSN:	0018-9480 1557-9670
DOI:	10.1109/TMTT.1986.1133544