TITLE:
A Compact UWB MIMO Antenna for Portable Applications
AUTHORS:
Hao Hu, Zhigang Lu
KEYWORDS:
Multiple-Input-Multiple-Output (MIMO) Antenna, Pattern Diversity, Planar Monopole, Ultrawideband (UWB)
JOURNAL NAME:
Journal of Electromagnetic Analysis and Applications,
Vol.8 No.10,
October
21,
2016
ABSTRACT: A novel compact multiple-input-multiple-output (MIMO) antenna for portable ul-trawideband (UWB) applications is presented. This antenna consists of two modified planar-monopole antenna elements with coplanar waveguides-fed printed on one side of the substrate. To enhance isolation and increase impedance bandwidth, a tree like stubs is placed on the ground plane at the 45° axis. The measured results show that the MIMO antenna operates from 2.3 GHz to 13 GHz, covering WLAN, WiMAX, and UWB. The low mutual coupling and low envelope correlation coefficient of less than 0.2 across the whole frequency band proved that this antenna was suitable for MIMO/diversity systems. Also, good performance of radiation patterns and the antenna’s compact size make it a good candidate for portable devices.