Abstract
We are discussing a compact, four elements with high-performance ultra-wideband (UWB) multiple-input multiple-output (MIMO) antenna with dual band-notched traits. The antenna has a partial ground plane and the radiator has truncation to enhance the matching through the frequency range 2.5-12 GHz. The coupling between ports was reduced by assorting the elements of the antenna in an orthogonal manner and applying four stubs between them. The proposed antenna achieves two band-notched characteristics by introducing a T-shaped strip etched in the radiating elements and adding an open-loop resonator near the feeding line. The results, which were simulated and measured, indicate that the proposed design achieved a wideband from 2.5 to 12 GHz with two band-notched characteristics within 3.3-3.6 GHz (WiMAX implementations) and within 5.2-5.8 GHz (Wireless Local Area Network [WLAN] applications). As well as, the proposed antenna has high isolation >20 dB and a low-envelope correlation coefficient <0.005 through the band except for the band notches. These outcomes demonstrate the adequacy of the proposed UWB MIMO antenna for UWB MIMO applications.