A broadband, polarisation-insensitive and wide-angle coplanar terahertz metamaterial absorber Ben-Xin Wang, Ling-Ling Wang, Gui-Zhen Wang, Wei-Qing Huang, Xiao-Fei Li and Xiang Zhai Eur. Phys. J. B, 87 4 (2014) 98 Published online: 23 April 2014 DOI: 10.1140/epjb/e2014-41072-y