Title :
Beam-switching antenna based on active Frequency Selective Surfaces
Author :
Edalati, Arezou ; Denidni, Tayeb A.
Author_Institution :
Dept. of Telecommun., INRS-EMT, Montreal, QC, Canada
Abstract :
A novel method for designing a beam-switching antenna using active Frequency Selective Surfaces (FSSs) is presented. The antenna is composing of a single dipole placed at the center of an active cylindrical FSS that is divided in six equal sectors by metallic sheets. Metallic cones at the top and bottom of the structure are used to enhance the radiation performance of the antenna. In each step, the diodes in one FSS-sector are off, whereas other diodes are on. The FSS-sector with off-state diodes defines the direction of the radiation pattern. The proposed antenna operates from 2.4 GHz to 2.8 GHz with gain of 11 dBi. The antenna radiation pattern can be swept in the entire azimuth plane in six steps with a 3-dB beamwidth of 60°. This antenna could be used in the base station of the wireless communication systems.
Keywords :
active antennas; adaptive antenna arrays; antenna radiation patterns; frequency selective surfaces; radiocommunication; telecommunication switching; active cylindrical FSS; antenna radiation pattern; azimuth plane; base station; beam switching antenna; frequency 2.4 GHz to 2.8 GHz; frequency selective surfaces; metallic cones; metallic sheets; wireless communication; Antenna radiation patterns; Dipole antennas; Directive antennas; Frequency selective surfaces; Switches; frequency selective surfaces; reconfigurable antennas; smart antennas; switch-beam antennas;
Conference_Titel :
Antennas and Propagation (APSURSI), 2011 IEEE International Symposium on
Conference_Location :
Spokane, WA
Print_ISBN :
978-1-4244-9562-7
DOI :
10.1109/APS.2011.5996965
