Novel design for shifted radiation pattern of rectangular microstrip patch antenna loaded with metamaterial

Abstract

Microstrip patch antenna is one of the popular types of antenna in the field of antenna manufacturing and designing. It is a narrow band wide beam antenna, which can be mounted on flat surfaces. This type of antenna has achieved huge fame in the field of antenna designing and manufacturing as it is easily printable onto a circuit board. Metamaterials are falsely organized media with unusual electromagnetic properties ranging from radio frequency and microwaves as far as possible up to optical frequencies.The study of metamaterial started very recently when Vesleago in the 1960s theoretically postulated a material with negative permiability and negative permittivity. Veselago’s work came under the lime light when Pendry at Imperial College, London suggested a construction of a composite medium in the microwave region, by arranging arrays of small metallic wires and split ring resonators.This medium was able to provide negative permiability and was named metamaterial. Different aspects of this metamaterial are now elements of study and research all over the world.Among the various uses and application we are particularly concerned about the fact that metamaterials can be used to design thin sub wavelength cavity resonators.Based on this phenomenon rectangular microstrip patch antenna has already been designed. The thesis aims at designing a model of single element microstrip patch antenna loaded with metamatarial.The main target is to change the radiation pattern of microstrip patch antenna array from broadside radiation pattern to end fire radiation pattern based on the unique and influencing electromagnetic wave characteristics of metamaterial.