A Novel C-Band 580W SSPA for Microwave Satellite Communications Earth Station

Author

Masatoshi, Ishida ; Noboru, Komatsu ; Kenzo, Wada ; Yoshiaki, Doi ; Masayuki, Kumura ; Eiji, Fujiwara ; Keiichi, Umezu ; Sumio, Ueda ; Daisuke, Kawaguchi

Author_Institution

Microwave and Satellite Communications Div. NEC Corporation, 4035 Ikebe-cho,Tsuzuki-ku,Yokohama,224 Japan

Volume

2

fYear

1997

fDate

8-12 Sept. 1997

Firstpage

1192

Lastpage

1197

Abstract

A compact novel C-band 580W SSPA for microwave satellite communications carth station has been made practicable for commercial use by using a newly developed compact rectangular coaxial line combiner, suitable cooling system and high power 35W GaAs FETs. This SSPA has excellent performances which are a match for 1.2kW or greater TWTA and also has high reliability(long life-time). So it is not necessary to make periodical maintenance like a TWTA. In addition, an overall cost of SSPA, which includes initial cost and replacement cost, is smaller than TWTA´s one. Furthermore, the SSPA also has high power added efficiency. It is useful for microwave satellite communications earth station in place of conventional TWTAs.

Keywords

Circuits; Coaxial components; Cooling; Costs; FETs; Gallium arsenide; National electric code; Satellite communication; Satellite ground stations; Transmitters;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Conference, 1997. 27th European

Conference_Location

Jerusalem, Israel

Type

conf

DOI

10.1109/EUMA.1997.337960

Filename

4139012