Quadrifilar-curl antenna for the "Big-LEO" mobile satellite service system

Author

Colburn, J.S. ; Rahmat Samii, Y.

Author_Institution

Dept. of Electr. Eng., California Univ., Los Angeles, CA, USA

Volume

2

fYear

1996

fDate

21-26 July 1996

Firstpage

1088

Abstract

The mobile satellite communications arena has received considerable attention as the next step for personal wireless communications systems. The use of satellites to provide world wide coverage will allow for many new market areas. But the additional opportunities being provided by satellite based personal communications systems has brought additional challenges. One of the new challenges facing the antenna engineers is to provide reasonably sized antennas that deliver acceptable electrical performance for the mobile terminal. This paper reports on work at UCLA to develop personal communication antennas for the big low Earth orbit (Big-LEO) satellite system mobile terminal. The radiators for this system require broad radiation patterns with good circular polarization characteristics, for the particular uplink and downlink bands of 1.61-1.6265 GHz and 2.4835-2.5 GHz respectively.

Keywords

electromagnetic wave polarisation; helical antennas; mobile antennas; mobile satellite communication; personal communication networks; satellite antennas; 1.61 to 1.6265 GHz; 2.4835 to 2.5 GHz; Big-LEO mobile satellite service system; UCLA; UHF; broad radiation patterns; circular polarization characteristics; downlink band; electrical performance; low Earth orbit; mobile satellite communications; mobile terminal; personal communication antennas; personal wireless communications systems; quadrifilar-curl antenna; radiators; uplink band; world wide coverage; Antenna feeds; Artificial satellites; Downlink; Geometry; Impedance; Low earth orbit satellites; Mobile antennas; Polarization; Satellite antennas; Satellite communication;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium, 1996. AP-S. Digest

Conference_Location

Baltimore, MD, USA

Print_ISBN

0-7803-3216-4

Type

conf

DOI

10.1109/APS.1996.549785

Filename

549785