Title :
Broadband circularly polarized Fabry-Perot resonator antenna
Author :
Zhen-Guo Liu ; Yong-Xin Guo ; Na Xie
Author_Institution :
State Key Lab. of Millimeter Waves, Southeast Univ., Nanjing, China
Abstract :
The broadband circularly polarized Fabry-Perot resonator (FPR) antenna is presented, which consists of a partially reflective surface (PRS) as cover, a metal-dielectric surface as ground plate and an embedded L-probe coupled rectangular patch as primary radiator. The partially reflective surface covered plate composed of appropriate frequency selective surface (FSS) structure with rectangular patch elements printed on the bottom surface of superstrate. By adjusting the aspect ratio of rectangular patch and the rectangular FSS element, the bandwidth of the circularly polarized (CP) operation can be enhanced. For the proposed antenna, a common frequency bandwidth of 7.7 % for S11 ≤ -10dB and gain-drop ≤ 3 dB and axial ratio ≤ 3 dB is obtained.
Keywords :
Fabry-Perot resonators; antenna radiation patterns; broadband antennas; frequency selective surfaces; FPR antenna; broadband circularly polarized Fabry-Perot resonator antenna; embedded L-probe coupled rectangular patch; frequency selective surface structure; ground plate; metal-dielectric surface; partially reflective surface; primary radiator; rectangular patch elements; Bandwidth; Broadband antennas; Frequency selective surfaces; Gain; Polarization;
Conference_Titel :
Antennas & Propagation (ISAP), 2013 Proceedings of the International Symposium on
Conference_Location :
Nanjing
Print_ISBN :
978-7-5641-4279-7
