Gain Enhancement of Diversity Slot Antenna Using FSS with Metamaterial Unit Cells for UWB Systems

Parchin, Naser Ojaroudi; Ullah, Atta; Santos, Henrique M. D.; See, Chan Hwang; Abd-Alhameed, Raed A.

Abstract

This study represents the design of a dual-port/diversity antenna with enhanced gain property ultra-wideband (UWB) systems. It contains a small-size open-ended slot resonator fed by a pair of semi-arc feed-lines providing radiation/polarization diversity function. An FR-4 dielectric with a thickness of 1.6 mm is employed as the design dielectric. To improve the gain characteristic a 10×10 frequency-selective-surface (FSS) is used below the dual-port UWB slot resonator operating at 3.2-10.8 GHz. The deployed unit cell is containing a square-ring radiator with a diamond-ring strip inside it. 8-9.2 dBi maximum gain level with low variation and almost constant values are observed over the desired band. The main parameters of the design in terms of scattering parameters, gain and efficiency levels were investigated with/without the FSS, and sufficient results are observed. Therefore, it can be used in high-gain UWB communications.

• Presentation Conference Type: Conference Paper (Published)
• Conference Name: 2022 IEEE Wireless Antenna and Microwave Symposium (WAMS)
• Start Date: Jun 5, 2022
• End Date: Jun 8, 2022
• Online Publication Date: Aug 18, 2022
• Publication Date: 2022
• Deposit Date: Sep 6, 2022
• Publisher: Institute of Electrical and Electronics Engineers
• Book Title: 2022 IEEE Wireless Antenna and Microwave Symposium (WAMS)
• DOI: https://doi.org/10.1109/wams54719.2022.9847736
• Keywords: Diversity antenna; FSS-based resonator; metamaterial unit cell; UWB communications
• Public URL: http://researchrepository.napier.ac.uk/Output/2912829