The effect of FSMM on the circular patch antenna by etching the antenna substrate with DGS method

Abstract

Microwave antennas used in technologies such as mobile devices, satellite antennas working at microwave frequencies are aimed to be high gain, high directivity and compactness. One method of enhancing antenna performance is to use the metamaterials (MMs) together with the antenna structures. The negative refractive properties of the MMs allow the electromagnetic waves to focus. For this purpose, in this study, firstly, flower Shape Metamaterial (FSMM) structure is designed for Ku band. Then a circular patch antenna is designed for the Ku Band. The effect of the FSMM structure on the performance of the circular patch antenna is investigated by applying the FSMM structure on the metal base of the antenna substrate using defected ground structure method (DGS).