Dual layer partially reflective surface antennas based on extended size unit cells for 60GHz band WLAN/WPAN

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Colleges, School and Institutes

Abstract

In this study, planar dual-layer partially reflective surface, also known as frequency selective surface (FSS), antennas have been presented for 60 GHz band (57.24–65.88 GHz) wireless local area network (WLAN) and wireless personal area network (WPAN) applications. The FSS is excited through a microstrip patch antenna array of two elements designed at 63.72 GHz with return loss (S11) bandwidth and gain of 5.55 GHz and 13.2 dBi, respectively. Both the FSS unit cell and the feeding patch elements are set to be the same and they are designed based on the patch antenna size improvement method to
convince the fabrication limitations imposed by the conventional printed circuit board etching process. Then three double layers FSS antennas have been designed with 2-elements, 12-elements and 24-elements in each FSS layer and measured gains of 15.6, 19.1 and 19.75 dBi, respectively, are achieved. It has also been found that when more layers and number of FSS elements are employed to improve the antenna gain, the overall S11 and gain bandwidth is reduced. In all the cases the measured results agreed well with the simulated results.

Details

Original languageEnglish
Pages (from-to)789-795
JournalIET Microwaves Antennas & Propagation
Volume12
Issue number5
Early online date16 Feb 2018
Publication statusE-pub ahead of print - 16 Feb 2018