Directive Beam of the Monopole Antenna Using Broadband Gradient Refractive Index Metamaterial for Ultra-Wideband Application
This paper introduces a novel technique to enhance the gain of the basic monopole antenna by using broadband gradient refractive index (GRIN) metamaterial.The proposed GRIN is designed by using a parallel-line unit cell metamaterial with different refractive index.A seven benify toyota GRIN lens is placed on the omnidirectional printed basic monopo