Open AccessA WIDEBAND AND HIGH GAIN DUAL-POLARZIED ANTENNA DESIGN BY A FREQUENCY-SELECTIVE SURFACE FOR WLAN APPLICATION
Author(s) -
Hua Zhu,
Yang Yu,
Xiuping Li,
Bo Ai
Publication year - 2014
Publication title -
progress in electromagnetics research c
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.341
H-Index - 34
ISSN - 1937-8718
DOI - 10.2528/pierc14072801
Subject(s) - wideband , tunable metamaterials , high gain antenna , dual (grammatical number) , antenna (radio) , electronic engineering , antenna gain , electrical engineering , computer science , engineering , physics , microstrip antenna , optoelectronics , antenna efficiency , art , metamaterial , literature
A new dual-polarized antenna loading frequency-selective surface (FSS) is proposed for 5G wireless local networks (WLANs) application. The antenna consists of two orthogonal bow-tie dipoles and a ground plane. A new wideband FSS is designed comprising ring-slot connecting rectangular slots. The reflection coefficient of wideband FSS is less than 0.9 from 4-6.5 GHz. The phase of reflection coefficient is −163 ◦ at 5.5 GHz. The novel cell analyzed by the equivalent circuit is given and simulated. The wideband FSS is employed as a superstrate layer for bandwidth enhancement and radiation gain improvement of the antenna. After loading wideband FSS, the measured bandwidth is 5.3-6.3 GHz (17.2%) with S11 and S22 both less than −10 dB, which cover various 5G WLAN bandwidths. The gain of the antenna is 12.1 dBi at 5.5 GHz. The bandwidth of antenna with FSS increases 40%, and gain improves 5.6 dBi. The simulated and measured results agree well.
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