Design and analysis of compact MIMO antennas for wireless applications

Abstract

In this work, two configurations of a slotted cup-shaped antenna element are proposed to cover the 3.5GHz WiMAX application. The antenna element geometry consists of cup-shaped radiator loaded with two open ended slots to create a band notch at 4.27GHz. An operating bandwidth of 2.9 GHz to 4.2 GHz with inter-port isolation, ?? 21 < - 20 ???? for pattern diversity configuration, and 3 GHz to 4 GHz with ?? 21 < -22 ???? in spatial diversity configuration are achieved. The footprints of the antenna configurations are 48×48 and 29×44 mm 2 . The proposed MIMO configurations are simulated using CST software, fabricated and experimentally validated. The designed antenna configurations cover widely the 3.5 GHz intended application and compact.