A Triple Band Notched UWB MIMO Antenna with Improved Performance

In this article, a 2×2 Multiple-Input-Multiple-Output (MIMO) antenna for UWB applications is presented. A plus-shaped parasitic decoupler is used to reduce mutual coupling between the single elements. The single element antenna comprises a square patch with lower end truncated, rectangular-shaped EBG, and SRR on its backside. The EBGs and SRR are placed on the radiator's backside. The UWB characteristic is fulfilled by truncating the lower ends of the antenna. EBG structures are employed to obtain the 5G Sub-6 GHz and WLAN band notches, while split-ring resonators have been used to avoid satellite downlink spectrum interference. The experimental findings show the designed antenna has an impedance bandwidth of 3.1–11.8 GHz terminating lower band 5G (3.4–3.9 GHz), WLAN band (5–6 GHz), and the Satellite downlink band (7.25 – 7.85 GHz). The antenna also has a reliable gain, mutual coupling less than (< -20 dB), and lower envelop correlation (< 0.001). The proposed antenna's dimensions are 55 × 55 × 1.52 mm
³
.