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A Wideband High Flat Gain Waveguide-Fed Aperture Antenna Using Superstrate and Shield

Ghorbani, Mehdi, Khalily, Mohsen, Xiao, Pei and Tafazolli, Rahim (2019) A Wideband High Flat Gain Waveguide-Fed Aperture Antenna Using Superstrate and Shield In: 2019 International Symposium on Networks, Computers and Communications (ISNCC'19), 2019-06-18-2019-06-20, Istanbul, Turkey.

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In this paper, a high flat gain waveguide-fed aperture antenna has been proposed. For this purpose, two layers of FR4 dielectric as superstrates have been located in front of the aperture to enhance the bandwidth and the gain of the antenna. Moreover, a conductive shield, which is connected to the edges of the ground plane and surrounding aperture and superstrates, applied to the proposed structure to improve its radiation characteristics. The proposed antenna has been simulated with HFSS and optimized with parametric study and the following results have been obtained. The maximum gain of 13.0 dBi and 0.5-dBi gain bandwidth of 25.9 % (8.96 – 11.63 GHz) has been achieved. The 3-dBi gain bandwidth of the proposed antenna is 40.7% (8.07-12.20 GHz), which has a suitable reflection coefficient (≤-10dBi) in whole bandwidth. This antenna comprises a compact size of (1.5λ×1.5λ), easy structure and low-cost fabrication.

Item Type: Conference or Workshop Item (Conference Paper)
Divisions : Faculty of Engineering and Physical Sciences > Electronic Engineering
Authors :
Ghorbani, Mehdi
Date : 24 March 2019
Copyright Disclaimer : © 2019 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
Uncontrolled Keywords : High Flat Gain; Aperture Antenna Superstrate; Shield; Wideband
Depositing User : Diane Maxfield
Date Deposited : 16 Apr 2019 10:08
Last Modified : 20 Aug 2019 15:32

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