Citation
Exposito Dominguez, Gonzalo and Fernández González, José Manuel and Padilla de La Torre, Pablo and Sierra Castañer, Manuel
(2012).
Mutual coupling reduction using EBG in steering antennas.
"IEEE Antennas and Wireless Propagation Letters", v. 11
;
pp. 1265-1268.
ISSN 1536-1225.
https://doi.org/10.1109/LAWP.2012.2226013.
Abstract
In this letter, a dual circular polarized steering antenna for satellite communications in X-band is presented. This antenna consists of printed elements grouped in an array, able to work from 7.25 up to 8.4 GHz in both polarizations: left-handed circular polarization (LHCP) and right-handed circular polarization (RHCP). The module antenna is compact, with narrow beamwidth, and reaches a gain of 16 dBi. It has the capability to steer in elevation to and electronically with a Butler matrix. In order to reduce the mutual coupling between adjacent patches, electromagnetic band-gap (EBG) structures are introduced. These EBGs combine double-layer and edge location via in order to reduce the size, without changing the low-permittivity substrate, and therefore maintaining the high radiation efficiency of the antenna.
