Electronic steering antenna onboard for satellite communications in X band

Author

Expósito-Domínguez, G. ; Padilla-Torre, P. ; Fernández-González, J.M. ; Sierra-Castañer, M.

Author_Institution

Signals, Syst. & Radiocommun. Dept., Univ. Politec. de Madrid, Madrid, Spain

fYear

2011

fDate

11-15 April 2011

Firstpage

2120

Lastpage

2123

Abstract

The antenna presented in this article will be developed for satellite communications onboard systems based on the recommendations ITU-R S.580-6 and ITU-R S.465-5. The antenna consists of printed elements grouped in an array, this terminal works in a frequency band from 7.25 up to 8.4 GHz (14.7% of bandwidth), where both bands, reception (7.25 - 7.75 GHz) and transmission (7.9 - 8.4 GHz), are included simultaneously. The antenna reaches a gain about 31 dBi, and it has a radiation pattern with a beamwidth smaller than 10° and a dual circular polarization. The antenna has the capability to steer in elevation from 90° to 40° electronically and 360° in azimuth with a motorized junction.

Keywords

antenna radiation patterns; microstrip antennas; microwave antennas; satellite antennas; telecommunication standards; ITU-R S.465-5; ITU-R S.580-6; X band; dual circular polarization; electronic steering antenna; frequency 7.25 GHz to 8.4 GHz; printed elements; radiation pattern; satellite communications; Antenna radiation patterns; Arrays; Couplers; Microstrip; Polarization; Satellite antennas; Steering antenna; X band;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation (EUCAP), Proceedings of the 5th European Conference on

Conference_Location

Rome

Print_ISBN

978-1-4577-0250-1

Type

conf

Filename

5781990