Design of Pentagon-Shaped Dual-band MIMO Antenna for THz Applications

This article introduces a dual-band multiple input multiple output (MIMO) antenna with high isolation. The proposed structure is designed on Arlon substrate having thickness of 10.8 µm using CST microwave studio 2021. The proposed antenna resonates for (2.15-2.39 THz) and (3.95-4.73 THz) with impedance bandwidth of 10.5% and 19.02% at resonant frequencies 2.27 THz and 4.1 THz respectively. The proposed system offers isolation better than 30 dB and good diversity performances ECC < 0.0001, DG ≈ 9.9 dB, CCL ≈ 0.3 bits/s/Hz, and TARC < -30 dB.