Title :
Circular polarized rectangular loop antenna over a mushroom-like EBG surface
Author :
Moghadasi, S. Mahdi ; Malekabadi, S. Ali
Author_Institution :
Dept. of Electr. Eng., Ferdowsi Univ. of Mashhad, Mashhad
fDate :
June 29 2008-July 2 2008
Abstract :
In this paper, a low profile dual loop wire antenna over an EBG surface is investigated for wideband circular polarization. A wideband mushroom-like EBG surface is used as the antenna ground plane. In comparison with a PEC ground plane, design of the antenna above an EBG ground plane results in 60% reduction of the structure thickness. It is shown that the axial ratio bandwidth (<3 dB) and return loss bandwidth (<10 dB) of the dual loop antenna above the designed EBG surface are 20% and 14%, respectively.
Keywords :
broadband antennas; electromagnetic wave polarisation; loop antennas; photonic band gap; wire antennas; antenna design; antenna ground plane; axial ratio bandwidth; circular polarized rectangular loop antenna; electromagnetic band gap structures; mushroom-like EBG surface; return loss bandwidth; wideband circular polarization; wire antenna; Antenna feeds; Antenna theory; Bandwidth; Broadband antennas; Dipole antennas; Frequency; Metamaterials; Periodic structures; Polarization; Wire;
Conference_Titel :
Mathematical Methods in Electromagnetic Theory, 2008. MMET 2008. 12th International Conference on
Conference_Location :
Odesa
Print_ISBN :
978-1-4244-2284-5
DOI :
10.1109/MMET.2008.4580955
