中国物理B ›› 2014, Vol. 23 ›› Issue (3): 34101-034101.doi: 10.1088/1674-1056/23/3/034101
• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇 下一篇
左钰a, 沈忠祥b, 冯一军a
Zuo Yu (左钰)a, Shen Zhong-Xiang (沈忠祥)b, Feng Yi-Jun (冯一军)a
摘要: A frequency selective polarization rotator that can rotate the polarization angle of an incident electromagnetic wave at the microwave frequency by 45° is presented. The polarization rotator is based on a two-dimensional periodic array of substrate integrated waveguide cavities, realizing the polarization rotation by coupling the input signal to the output wave through three metallic slots. Two layers of frequency selective surfaces are cascaded by substrate and form the polarization rotator. A vertical slot on the top layer is used to select the horizontal polarization from the incident wave, the vertical and the horizontal slots on the bottom layer are, respectively, used to obtain horizontally and vertically polarized outgoing waves. The two orthogonal outgoing waves are combined to result in the 45° polarized wave. Both full wave simulation and experimental measurement are carried out, together validating the proposed method.
中图分类号: (Electromagnetic wave propagation; radiowave propagation)