COMETS experiments for Ka-band and millimeter-wave advanced mobile satellite communications

Author

Wakana, Hiromitsu ; Saito, Haruo ; Yamamoto, Shinichi ; Li, Huan-Bang ; Tanaka, Masato

Author_Institution

Commun. Res. Lab., Min. of Post & Telecommun., Ibaraki, Japan

Volume

1

fYear

1998

fDate

5-9 Oct 1998

Firstpage

635

Abstract

We present the Communications and Broadcasting Engineering Test Satellite (COMETS) payload configuration and experimental systems for the Ka-band and millimeter-wave mobile satellite communications as well as the developed ground terminals. The COMETS carries multibeam antennas, an SCPC/TDM regenerative transponder, and LF filter matrices for direct mobile-to-mobile communications and interconnection between multibeams. For mobile terminals, several antennas such as an active phased array antenna, a torus-reflector antenna, and a waveguide slot array antenna were developed. For personal satellite communications, a Ka-band portable terminal, which can achieve direct user-to-user communications using the on-board regenerative transponder, was developed

Keywords

active antenna arrays; antenna phased arrays; microwave antenna arrays; millimetre wave antenna arrays; mobile satellite communication; multibeam antennas; personal communication networks; reflector antennas; satellite antennas; satellite ground stations; slot antenna arrays; time division multiplexing; transponders; COMETS experiments; Communications and Broadcasting Engineering Test Satellite; Ka-band; LF filter matrices; SCPC/TDM regenerative transponder; active phased array antenna; advanced mobile satellite communications; direct mobile-to-mobile communications; ground terminals; millimeter-wave; multibeam antennas; on-board regenerative transponder; payload configuration; personal satellite communications; portable terminal; torus-reflector antenna; waveguide slot array antenna; Antenna arrays; Artificial satellites; Mobile antennas; Mobile communication; Phased arrays; Satellite broadcasting; Satellite communication; Slot antennas; System testing; Transponders;

fLanguage

English

Publisher

ieee

Conference_Titel

Universal Personal Communications, 1998. ICUPC '98. IEEE 1998 International Conference on

Conference_Location

Florence

ISSN

1091-8442

Print_ISBN

0-7803-5106-1

Type

conf

DOI

10.1109/ICUPC.1998.733047

Filename

733047