Development of Multi-band MIMO Antenna with Defected Ground Structure

摘要

This paper presents the proposed design of a multi-band MIMO antenna for the Wi-Max technology having a frequency range is 2-11 GHz. The MIMO antenna was designed by using two rectangular patches having width 19.76 mm and length 15.67 mm with defected ground structure. The inset feed method is used in phase for the exciting the antenna. This antenna has resonated on multiple bands with the enhancement of specifications like VSWR, return loss, efficiency, gain, and directivity. The Directivity and Gain of MIMO antenna have obtained 6.09 dB and 6.03 dB, respectively. Also, the efficiency of the MIMO antenna is 99.06%. This MIMO antenna is provided better return loss and VSWR for higher efficiency. The objective of this paper is providing a novel approach with multi-band operation by using the defective ground.