Metamaterial beam scanning leaky-wave antenna based on quarter mode substrate integrated waveguide structure

Wu Guo-Cheng^†, Wang Guang-Ming, Fu Xiao-Long, Liang Jian-Gang, Bai Wei-Xiong

(color online) (a) Full-mode SIW. (b) Half-mode SIW. (c) Quartermode SIW. (d) The proposed QMSIW based metamaterial.