학술논문
Antenna technology for frequency reuse satellite communications
Document Type
Periodical
Source
Proceedings of the IEEE Proc. IEEE Proceedings of the IEEE. 65(3):370-378 Mar, 1977
Subject
Language
ISSN
0018-9219
1558-2256
1558-2256
Abstract
In the past few years, the capacity of communications satellite systems has become limited by the available bandwidth. One method of overcoming this limitation is to reuse the bandwidth by employing spatially isolated antenna beams and/or orthogonal polarizations. This paper surveys the required antenna technology. The multiple-beam spacecraft antenna problem is addressed, and the curreent design status is summarized. The earth terminal antenna for a dual-polarized system is discussed along with polarization measurement techniques. Finally, circuits for compensating the depolarization resulting from precipitation on the propagation path are presented.