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 GRIN lens is placed on the omnidirectional printed basic monopole antenna. perpendicularly. https://www.bekindtopets.com/limited-value-Ruth-Thompson-Dead-of-Winter-Dragon-and-Warriors-Galaxy-S20-FE-Clear-Case-p104889-super-value/