Li Liu, Chengguang Zhang, Yu Liu, & Yujin Hua. (2018). A HIGH GAIN AND DIRECTIVITY BOW TIE ANTENNA BASED ON SINGLE-NEGATIVE METAMATERIAL. Journal of Microwaves, Optoelectronics and Electromagnetic Applications (JMOe), 17(2), 246–259. https://doi.org/10.1590/2179-10742018v17i21116