Zhaoneng Jiang, Hongzhi Zhao, Xiaoyan Zhao, Jian Liu, Mingyue Shui, Ting Wan and Xuguang Qiao 2019. Gain-Enhanced Compact Circularly Polarized Array Microstrip Antenna. The Applied Computational Electromagnetics Society Journal (ACES). 34, 03 (Mar. 2019), 397–402.