[1]
Jianxun Su, Zhi Li, Zengrui Li, Qingxin Guo, and Yaoqing (Lamar) Yang, “Ku-Band Phase-Gradient Metasurface for Broadband High-Gain Circularly Polarized Lens Antenna”, ACES Journal, vol. 34, no. 05, pp. 669–675, May 2019.