Dual-polarized Unit-cell of Continuous Reflective Phase-shift for Reconfigurable Reflectarrays
This paper presents a Ku-band dual-polarized patch unit-cell of continuous phase shift for reconfigurable reflectarray antennas,which can twist the polarization of incident wave.This cross-polarized unit-cell can be applied in the folded reflectarray configuration for beam-scanning,and its performance is validated by the full-wave simulations under periodic boundary conditions.The scattered phase of the cross-polarized field varies continuously by approximate 300℃ as the capacitance in the varactor diodes is varied,and the magnitude of the cross-polarized field is higher than that of co-polarized field.The calculated results confirm that the dual-polarized multi-layer unit-cell consisting of dual-polarized H-shaped aperture coupled microstrips and vararctor-based reflection-type phase-shifter can be used as a reconfigurable reflectarray unit-cell to reflect the incident wave with a continuous phase shift after polarization twist.
M.T.Zhang S.Gao J.X.Wan B.N.Tian C.B.Wu
School of Engineering and Digital Arts,University of Kent,Canterbury,CT2 7NT,UK;Xian Institute of S School of Engineering and Digital Arts,University of Kent,Canterbury,CT2 7NT,UK Xian Institute of Space Radio Technology,Xian,Shaanxi 710100,China
国际会议
Progress in Electromagnetics Research Symposium 2014(2014年电磁学研究新进展学术研讨会)
广州
英文
1369-1373
2014-08-01（万方平台首次上网日期，不代表论文的发表时间）