Concave shape microstrip patch antenna using SRR for 5G applications

Abstract

A single band microstrip-fed patch antenna is presented which contains the radiating structure having concave shape slots and split ring resonator loaded in the partial ground plane. This partial ground plane has been used to enhance the bandwidth of proposed antenna. Both the partial ground plane and radiating patch are perfect electric conductors. The patch is imprinted on a substrate named as Epoxy Glass FR-4 having thickness 1.6 mm, relative permittivity 4.4, and loss tangent 0.0024. The designed concave shape microstrip patch antenna (MPA) is resonate at single frequency band from 3.4-3.8 GHz with 400 MHz bandwidth and corresponding return loss of-25dB. A parametric study has been performed for the concave shape slots located in the patch. Proposed MPA is simulated using Computer Simulation Technology Microwave Studio Version 14.0 (CST MWS V14.0). Furthermore, the radiation performance of antenna in terms of gain and radiation efficiency has been analyzed. The proposed antenna is having a peak gain of 3.2 dB and radiation efficiency of 94%.