GEODA-GRUA: Adaptive multibeam conformal antenna for satellites communications

Author

Trujillo, J. García-Gasco ; Natera, Miguel Salas ; Montesinos, Ignacio ; Campo, Marta Arias ; Pérez, M. Sierra ; Martínez, Ramón

Author_Institution

Dept. de Senales, Sist. y Radiocomunicacion, Univ. Politec. de Madrid, Madrid, Spain

fYear

2011

fDate

13-20 Aug. 2011

Firstpage

1

Lastpage

4

Abstract

The GEODA-GRUA is one conformal adaptive antenna array designed for satellite communications. Operating at 1.7 GHz with circular polarization, it is possible to track and communicate with several satellites at once being able to receive signals in full azimuth and within the range of 5° to broadside elevation thanks to its adaptive beam. The complex structure of the antenna array has 2700 radiating elements based on a set of 60 similar triangular arrays that are divided in 15 subarrays of 3 radiating elements. A control module governs each transmission/receiver (T/R) module associated to each cell in order to manage beam steering by shifting phases.

Keywords

UHF antennas; adaptive antenna arrays; antenna radiation patterns; conformal antennas; receiving antennas; satellite communication; transmitting antennas; GEODA-GRUA; adaptive beam; adaptive multibeam conformal antenna; beam steering management; circular polarization; conformal adaptive antenna array; radiating element; satellite communication; satellites communication; shifting phase; transmission-receiver module; triangular array; Adaptive arrays; Antenna radiation patterns; Arrays; Control systems; Microprocessors; Satellite antennas;

fLanguage

English

Publisher

ieee

Conference_Titel

General Assembly and Scientific Symposium, 2011 XXXth URSI

Conference_Location

Istanbul

Print_ISBN

978-1-4244-5117-3

Type

conf

DOI

10.1109/URSIGASS.2011.6050354

Filename

6050354