A Concave H-Shaped Patch Antenna with Improved Bandwidth and Isolation for MIMO Systems

Abstract

A compact concaved H-shaped patch antenna for dual-band applications with improved bandwidth and isolation characteristics is presented in this paper. The proposed antenna resonates at multiband of 3.2 GHz and 4.9 GHz frequencies for VSWR ≤ 1.32, with an impedance bandwidth of 70%. A 2×2 MIMO system is developed using the proposed antenna giving an excellent isolation of 48 dB between the two antennas. The developed antenna system can be widely used for the 4G, WLAN and Wi-MAX applications. The proposed antenna is a good choice for MIMO systems operating for several wideband applications.