Recent developments of metamaterials/metasurfaces for RCS reduction Ya Fan, Jiafu Wang, Xinmin Fu, Yongfeng Li, Yongqiang Pang, Lin Zheng, Mingbao Yan, Jieqiu Zhang and Shaobo Qu EPJ Appl. Metamat., 6 (2019) 15 Published online: 01 April 2019 DOI: 10.1051/epjam/2019008