Title :
Switchable 8 beams sectoral antenna using Electromagnetic Band Gap surfaces
Author :
Lerideau, Guillaume ; Tarot, Anne-claude ; Floch, Jean-marie ; Loison, Renaud ; Thizon, Sophia ; Pied, Samuel ; Daden, Jean-yves
Author_Institution :
IETR, Univ. Eur. de Bretagne, Rennes, France
Abstract :
In this paper, we present a sectoral antenna with eight independent beams in the azimuth plane. The antenna is composed of eight patch antennas arranged on an octagonal structure. The patch antennas are covered by two layers of Frequency Selective Surfaces (FSS) in order to form Electronic Band Gap (EBG) cavities. The simplicity of the feeding structure is the main advantage of this antenna, indeed there is only one excited patch at the same time. Several simulations have been performed to optimize the realized gain of the structure. The antenna is designed around the frequency of 4.7GHz. The expected characteristics of the antenna are: a gain higher than 15dBi, a scanning angle equal to 45° (eight beams).
Keywords :
frequency selective surfaces; microstrip antennas; microwave antennas; photonic band gap; EBG cavities; FSS; electromagnetic band gap surfaces; feeding structure; frequency 4.7 GHz; frequency selective surfaces; patch octagonal structure; switchable 8 beams sectoral antenna; Antenna radiation patterns; Frequency selective surfaces; Metamaterials; Periodic structures; Surface impedance;
Conference_Titel :
Antennas and Propagation Conference (LAPC), 2011 Loughborough
Conference_Location :
Loughborough
Print_ISBN :
978-1-4577-1014-8
Electronic_ISBN :
978-1-4577-1015-5
DOI :
10.1109/LAPC.2011.6114125
