Mechanically steered tracking antenna for land mobile satellite communications

Author

Kuramoto, Akio ; Yamane, Toshinobu ; Endo, Nobuhiro

Author_Institution

NEC Corp., Yokohama, Japan

fYear

1988

fDate

6-10 June 1988

Firstpage

1314

Abstract

The key price of equipment in the land mobile satellite communication system is the vehicle antenna, because communication must be maintained while the vehicle moves around in regions within satellite beam coverage. Two types of antennas are considered. One is an omnidirectional antenna for a low-gain application, and the other is a beam-steerable antenna for a high-gain application. For the latter, the authors have developed a mechanically steered tracking antenna which consists of an eight-element spiral printed array, a novel single-channel tracking controller, and an antenna drive mechanism. The antenna performance and its tracking system are presented.<>

Keywords

microwave antenna arrays; mobile antennas; mobile radio systems; satellite antennas; satellite relay systems; tracking systems; antenna drive mechanism; beam-steerable antenna; eight-element spiral printed array; high-gain application; land mobile satellite communications; low-gain application; mechanically steered tracking antenna; omnidirectional antenna; single-channel tracking controller; vehicle antenna; Antenna arrays; Artificial satellites; Azimuth; Mobile antennas; Mobile communication; Printed circuits; Satellite antennas; Satellite communication; Spirals; Vehicles;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium, 1988. AP-S. Digest

Conference_Location

Syracuse, NY, USA

Type

conf

DOI

10.1109/APS.1988.94341

Filename

94341