UWB-MIMO doublet with split decoupling structure and defected grounds

In this paper, a dual port Ultra wide-band Multiple-Input Multiple-Output (UWB-MIMO) system is presented. The MIMO system has an elliptical UWB antenna elements along with split ground plane decoupling structure. A low cost FR-4 substrate is employed with compact size of 34 mm × 48 mm. The antenna elements are decoupled by employing defected ground structures and frequency selective surface based split decoupling structure. The MIMO system provides an isolation of more than 20 dB over entire Ultra Wideband.