Abstract Circularly polarized (CP) lens antenna has been applied to numerous wireless communication systems based on its unique advantages such as high antenna gain, low manufacturing cost, especially stable data transmission between the transmitter and the receiver. Unfortunately, current available CP lens antennas mostly suffer from high profile, low aperture efficiency as well as complex design. In this paper, we propose an ultra-thin CP lens antenna based on the designed single-layered Pancharatnam-Berry (PB) transparent metasurface with focusing property. The PB metasurface exhibits a high transmissivity, which ensures a high efficiency of the focusing property. Launched the metasurface with a CP patch antenna at its focal point, a low-profile lens antenna is simulated and measured. The experimental results show that our lens antenna exhibits a series of advantages including high radiation gain of 20.7 dB, aperture efficiency better than 41.3%, and also narrow half power beam width (HPBW) of 13° at about 14GHz. Our finding opens a door to realize ultra-thin transparent metasurface with other functionalities or at other working frequencies.
Large energy-loss straggling of swift heavy ions in ultra-thin active silicon layers Zhang Zhan-Gang (张战刚), Liu Jie (刘杰), Hou Ming-Dong (侯明东), Sun You-Mei (孙友梅), Zhao Fa-Zhan (赵发展), Liu Gang (刘刚), Han Zheng-Sheng (韩郑生), Geng Chao (耿超), Liu Jian-De (刘建德), Xi Kai (习凯), Duan Jing-Lai (段敬来), Yao Hui-Jun (姚会军), Mo Dan (莫丹), Luo Jie (罗捷), Gu Song (古松), Liu Tian-Qi (刘天奇). Chin. Phys. B, 2013, 22(9): 096103.
Development and characteristic analysis of a field-plated Al2O3/AlInN/GaN MOS–HEMT Mao Wei(毛维), Yang Cui(杨翠), Hao Yao(郝跃), Zhang Jin-Cheng(张进成), Liu Hong-Xia(刘红侠), Bi Zhi-Wei(毕志伟), Xu Sheng-Rui(许晟瑞), Xue Jun-Shuai(薛军帅), Ma Xiao-Hua(马晓华), Wang Chong(王冲), Yang Lin-An(杨林安), Zhang Jin-Feng(张金风), and Kuang Xian-Wei(匡贤伟). Chin. Phys. B, 2011, 20(1): 017203.
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