Abstract

Periodic metallic arrays act as AMC surfaces when positioned on a dielectric material and they provide a zero\ndegree reflection phase to incoming waves. In-phase reflection and surface wave suppression are two vital characteristics of\nAMC which make it a perfect candidate for low profile antenna applications. In this paper, fractal antenna with AMC and\nwithout AMC is designed and simulated in the IE3D software. It is observed that the fractal antenna designed over AMC\nshows better VSWR characteristics, better return loss, better directivity and raises the impedance bandwidth upto 66% as\ncompared to fractal antenna over conventional ground plane (without AMC). FR4 material is used for the fabrication of\nplanned antenna. Designed antenna works effectively at three frequencies i.e. 2.15GHz with impedance bandwidth 167MHz\n(2.070-2.237GHz), 3.86GHz having impedance bandwidth of 261 MHz (3.736-3.997GHz) and 4.67 GHz having impedance\nbandwidth of 173MHz (4.610-4.783GHz). The fabricated antenna is tested for the specified bands using VNA. After testing\nit is confirmed that the simulated results and the measured results through VNA match with each other.