Perturbed Rectangular Sierpinski Carpet Geometry Based Miniaturized Fractal Patch Antenna

During this decade, the design of small-size wireless communication devices was key topic in the field of communication engineering. The design of miniaturized antenna is an important parameter to reduce the overall size of the wireless communication devices. Many approaches have been proposed to design the miniaturized antennas. Recently, fractal antenna geometry has been employed to design the miniaturized antennas by a number of researchers. The self-similarity and space filling properties of fractal geometries result in fitting of more electrical length in small physical area. This result in larger current paths which lead to miniaturized antenna design. In this paper, new fractal geometry is proposed with 37.88 % of size reduction in the antenna size at 1.975 GHz. The designed fractal antenna, named as perturbed rectangular Sierpinski carpet (PRSC), is obtained by replacing the straight boundaries of the rectangular Sierpinski Carpet geometry by a hybrid fractal curve obtained by combining Koch and Minkowski fractal curves. The antenna performance has been analyzed by IE3D software based simulation followed by measured results of the fabricated antenna. The simulated and experimented results are compared that demonstrate a good agreement. The substrate having dielectric constant of 2.2 and thickness of 1.6 mm is used and the designed antenna has a gain of 5.83 dBi. 354 Suman, Balwinder S. Dhaliwal, Shyam S. Pattnaik and Harish K. Sardana