A Planar Integrated Folded Reflectarray Antenna With Circular Polarization

作者：Zhang, Chong^*; Wang, Yongfeng; Zhu, Fuguo; Wei, Gao; Li, Jianzhou; Wu, Changying; Gao, Steven; Liu, Haitao

来源：IEEE Transactions on Antennas and Propagation, 2017, 65(1): 385-390.

DOI：10.1109/TAP.2016.2623653

• Circular polarization
• folded reflectarray (FRA)
• integrated feeding array
• meander-line polarizer

This communication presents the complete design of a circularly polarized (CP) folded reflectarray (FRA) antenna with an integrated planar structure for the first time in the open literature. To achieve circularly polarized, a printed meander-line polarizer is designed and integrated with the linearly polarized (LP) FRA. To achieve a low-profile planar structure, an integrated 2x2 planar array is designed as the feed source instead of a horn. Thus, the whole antenna, including the feed source, LPFRA, and meander-line polarizer, can be fully integrated and fabricated using low-cost printed circuit board technology. To validate the concept, a right-handed CPFRA operating in C-band is designed, fabricated, and measured. The broadside axial ratio (AR) of the proposed CPFRA is lower than 1 dB over a bandwidth from 5.22 to 5.46 GHz. In addition, the maximum gain of 22.8 dBic is obtained at 5.38 GHz with the antenna efficiency of 27%. The antenna is promising for applications in satellite communication due to advantages of low profile, easy fabrication, low cost, and high gain.

• 出版日期2017-1
• 单位西北工业大学; 中国航空工业集团公司沈阳飞机设计研究所