Tunable wideband absorber based on resistively loaded lossy high-impedance surface

Dang Ke-Zheng, Shi Jia-Ming†, Wang Jia-Chun, Lin Zhi-Dan, Wang Qi-Chao

Electric field distributions on the outer surface of the absorber at 17 GHz when the top FSS has different displacements: (a) 0 mm, (b) 4 mm, (c) 8 mm, and (d) 11 mm.