Design of a CSRR Dual-Port Patch Antenna with Elliptical Slots on Ground Plane for Wireless Communication

This paper introduces a complementary split ring resonator (CSRR) patch antenna with elliptical slots on the ground plane for wireless communication, significantly amplified by placing two conducting elements over the substrate. The dimensions of the designed CSRR dual element multiple-input-multiple-output (MIMO) antenna are 16 × 32 mm2 (0.66λ × 1.33λ). In this paper, the CSRR dual element MIMO antenna with an elliptical DGS resonates at 11.523 GHz, 12.305 GHz, and 15.178 GHz with reflection coefficients of −22.67 dB, −26.25 dB, and −47.65 dB, respectively. It presents an impressive wide impedance bandwidth of 1.462 GHz covering 11.523 GHz and 12.305 GHz resonating frequencies and 1.446 GHz at 15.178 GHz resonance. The proposed design gives a gain of 5.29 dBi, 6.12 dBi, and 5.97 dBi for the resonating frequencies, respectively. The results show a minimum envelope correlation coefficient (< 0.025) and a significant diversity gain (> 9.85) across the entire bandwidth. The measured results are close to the simulated ones, confirming the efficiency of the triple resonating frequencies with wideband, high-gain antenna design used for wireless communications for faster data transmission rates. © 2024, Electromagnetics Academy. All rights reserved.