Circular Polarization Fractal Koch microstrip patch Antenna using single-fed EM coupled ring Resonators

This paper describes the design and analysis of a Circular Polarization Fractal Koch Antenna using single-fed electromagnetic (EM) coupled ring resonator at 2.4 GHz. By applying fractal Koch, the proposed antenna size is reduced about 5% compared to the square patch using single-fed EM coupled ring resonator antenna. The simulation process has been done by CST software. Simulation as well as measurement results with antenna design have been presented and it shows that a good agreement in term of return loss and axial ratio. The antenna exhibits a bandwidth of 1.65% at -10dB return loss and 3dB Axial Ratio (AR) bandwidth of 0.78% with gain of 5.97dBi.