Low Isolation Based Dual Band MIMO Antenna for WiMAX and X-band Applications

Abstract

In this paper, a dual-band Multiple Input Multiple Output (MIMO) antenna system with wide impedance bandwidth is presented. This four-element dual-band MIMO configuration consists of an electromagnetic band gap (EBG) structure loaded inverted L-monopole antenna element. This dual-band MIMO antenna operating in 3.3-4.67 GHz and 7.67-9.63 GHz band with wide impedance bandwidth (IBW) of 34.42% and 25.26% respectively. Low inter-element isolation of approximately 15 dB is achieved, along with the Envelope Correlation Coefficient (ECC) is less than 0.01 of entire operating frequency band. This configuration can be applied for WiMAX and X-band applications.