Wideband Graphene Absorber for Effective Sidelobe Suppression of Triangular Patch Antenna Array

Abstract

An effective approach of integrating the microwave absorbing element with microwave radiating source is proposed in reported work to enhance the radiation pattern of radiating source. Microwave absorber in conjunction with patch antenna array produce a modified patch structure whose radiation patterns are better than conventional patch arrays in terms of array directivity, gain and levels of side lobe. Two element triangular patch antenna array has been reported in this work and from array gain and directivity plots it has been authenticated that radiation pattern of antenna array has been modified after integration of microwave absorber. Further the results of triangular array with absorber has been compared with rectangular array to ensure that the performance of triangular array is far better than rectangular array along with reduction in array size.