Design and Analysis of 60/70 GHz MIMO Dielectric Resonator Antenna for Millimeter Wave Application

This work presents a six-port multiple input multiple output (MIMO) wideband antenna design using dielectric resonators (DR). This configuration uses a connected ground for designing of millimeter wave (mm-Wave) antenna working at 60/70 GHz frequency. The proposed antenna is designed on Rogers RT/duriod 5880 with a thickness of 0.254 mm. The DRA is designed through F4BTM-2 <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">$\left(\epsilon_{r}=3.5\right)$</tex> material. The operating frequency range of the proposed antenna is 60.81 GHz-76.19 GHz which achieves fractional impedance bandwidth of 22.45%. The proposed design has achieved 20 dB isolation and 9.9 dBi of gain within the operating frequency range. The MIMO performance parameters were calculated and found within the acceptable limit. The values of ECC and DG are 0.0025 and 10 dB respectively. Hence, the proposed antenna is suitable for mm Wave application.