Modified microstrip aperture coupled patch antenna with Sierpinski fractal geometry

A two-layer modified microstrip aperture coupled patch antenna with Sierpinski fractal geometry is presented in this paper. The effects of the two coupling slots and the parasitic patch are discussed. The proposed antenna can work on 956 MHz to 968 MHz, 3.654 GHz to 3.78 GHz, and 8.81 GHz to 9.28 GHz three frequency bands, and the maximum gain in each band is 4.64 dBi, 8.46 dBi, and 7.85 dBi, respectively. The simulated result reveals that the Sierpinski patch antenna we proposed in this paper performs better on radiation properties.