HIS based dual band dual polarized Minkowski fractal patch antenna

A compact single probe feed Minkowski fractal boundary patch antenna based on HIS (High Impedance Surface) is proposed for dual band dual polarization operation. Dual band operation with widened bandwidth at each resonating frequency and dual polarization can be achieved by using the combination of HIS and Minkowski fractal curves. The 10-dB return loss bandwidth of lower and upper frequency bands are 13.01% and 4.95% respectively. The 3-dB Axial Ratio bandwidth is 3.4%.