Ultra-wideband circular-polarization converter with micro-split Jerusalem-cross metasurfaces
Gao Xi1, 2, †, , Yu Xing-Yang1, Cao Wei-Ping1, Jiang Yan-Nan1, Yu Xin-Hua1
       

(a) Equivalent two-port network of the free-standing Jerusalem-cross array. (b) Circuit model of the equivalent cascaded two-port networks.