An X-band bifunctional antenna using anisotropic transparent meta-surface

作者：Cai, Tong^*; Wang, Guang-Ming; Liang, Jian-Gang

来源：Applied Physics A, 2017, 123(4): 240.

DOI：10.1007/s00339-017-0848-y

• REFLECTARRAY
• METASURFACES
• WAVES

An integration of a transmitarray antenna and a beam-steering antenna has been achieved and experimentally demonstrated. The antenna system operating at X-band (8-12 GHz) is implemented by a well-optimized transparent meta-surface and launched by polarization-controlled feed antennas. The transparent meta-surface, with polarization-independent property, consists of 12 x 12 elements with a parabolic phase distribution at y-direction and a linear phase gradient at x = direction, respectively. Illuminating the meta-surface with differently-polarized electromagnetic waves, anomalous phenomena of beam bending and focusing are clearly observed. The performances of the antenna system are investigated in depth through near-field analysis and far-field measurements. Numerical and experimental results coincide well, indicating that the proposed antenna system advances in many aspects such as bifuncional radiation patterns, a broad bandwidth and also a simple fabrication process based on the convenient print circuit board (PCB) technology.

• 出版日期2017-4
• 单位中国人民解放军空军工程大学