Broadband, polarization-insensitive, and wide-angle microwave absorber based on resistive film
Bu Dan-Dan, Yue Chun-Sheng, Zhang Guang-Qiu, Hu Yong-Tao, Dong Sheng
       

Simulated absorption spectra of the absorbers with (a) different substrate permittivities and (b) different widths of the resistive film.