Design of Star-Shaped Fractal Antenna for Wideband Applications

Abstract

A star-shaped modified fractal antenna has been investigated in this article. The proposed design with a wide operating bandwidth can be effective or S-band applications. The fractal design of iteration order 3 provides wide bandwidth in the frequency range of 1.87 GHz to 4.78 GHz. For the validation of the antenna performances prototype of the design has been fabricated. The simulated 2D radiation patterns exhibit omnidirectional characteristics throughout the wide operating band. A maximum realized gain of 3.5 dBi has been achieved at 4.4 GHz. The proposed design with an overall dimension of 70 40 1.6 mm3 can be suitable for wideband applications.