Multiband and Wideband MIMO Antenna for X and Ku Band Applications

In this article, a two-port MIMO microstrip patch antenna (27 × 23 × 1.6 mm3) for X and Ku band applications is presented. Mushroom shape MIMO antenna structure shows multiband (8.1–8.8, 9.8–10.5, 12–12.8, 13.4–14, 14.8–15.5 GHz) and wideband (13.5–15.8 GHz) characteristics from port-1 and port-2 respectively. Defected ground structure provides better isolation between the two antenna elements. Antenna performance in terms of return loss, gain, isolation and radiation pattern is investigated. Diversity gain of the proposed antenna is verified with the help of ECC (envelope correlation coefficient) plot. Isolation is also discussed and presented along with simulated results.