Fractal Sierpinski Square Patch Antenna for GPS Applications

Abstract

The high demand of a miniature antenna for wireless applications, motivates the researchers to design special types of microstrip antenna such as fractal Sierpinski. Fractal Sierpinski antenna based on square patch structure is proposed, designed and simulated to operate at resonance frequency at 1.575 GHz for GPS applications. Antenna Simulation is done using CST Studio suite version-2014. The proposed antenna is simulated on Sierpinski carpet shaped substrate Arlon 250 AD lossy of dielectric constant equals to 2.5 and thickness of 1.6 mm. The thickness of patch is 0.6 mm. The results are reported in terms of reflection coefficient, VSWR, directivity and gain. According to the results, the fractal of 3rditeration exhibits good properties that it possesses gain of 7.79 dB and VSWR is 1.6. Significant reduction of antenna area can be realized when fractal Sierpinski carpet patch antenna is used instead of conventional antenna. Reduction area of 3rd iteration is about 36% less than 0th iteration. The results highlight that antenna becomes more efficient by applying fractal geometry.