Compact tri-band MIMO antenna with high port isolation for WLAN and WiMAX applications

Abstract

This paper presents a Tri-band multiple input multiple output (MIMO) antennae for Wi-Fi/WiMAX applications. The antenna consists of two radiating elements placed symmetrically. The overall dimensions of the antenna are 47 ×36 × 1.6 mm3. The separation distance between the two elements is 3mm (0.024λo). The Co-Planar Waveguide (CPW) technique is used as a feeding network. The Isolation factor is improved by inserting a neutralization line between the ground planes of the two antennas. The proposed MIMO antenna is implemented and tested. The measured results are in reasonable agreement with the simulated ones.