High-Efficiency Wide-Band Cross-Polarization Conversion Using Bi-layered Metal Hole Pairs  

作　　者：Yong Zhang Xian-Ke Li Cheng-Ping Huang 张勇;李先科;黄成平(Department of Physics, School of Physical and Mathematical Sciences, Nanjing Tech University)

机构地区：[1]Department of Physics, School of Physical and Mathematical Sciences, Nanjing Tech University

出　　处：《Chinese Physics Letters》2018年第10期40-43,共4页中国物理快报（英文版）

摘　　要：We present a polarization converter composed of bi-layered metal films perforated with rectangle hole pairs in each film. The proposed converter can convert the polarization of an incident linearly-polarized electromagnetic wave to its orthogonal direction with high efficiency and large bandwidth in the infrared or microwave regions.To make sure of the mechanism of polarization conversion, the current and electric-field distributions at different resonant frequencies are analyzed. It is found that the cross-polarized transmission is due to the near-field coupling between hole pairs in neighboring metal films. Finally, a prototype of the proposed converter is fabricated and measured in the microwave region. Good agreement between the experimental and simulated results is obtained.We present a polarization converter composed of bi-layered metal films perforated with rectangle hole pairs in each film. The proposed converter can convert the polarization of an incident linearly-polarized electromagnetic wave to its orthogonal direction with high efficiency and large bandwidth in the infrared or microwave regions.To make sure of the mechanism of polarization conversion, the current and electric-field distributions at different resonant frequencies are analyzed. It is found that the cross-polarized transmission is due to the near-field coupling between hole pairs in neighboring metal films. Finally, a prototype of the proposed converter is fabricated and measured in the microwave region. Good agreement between the experimental and simulated results is obtained.

关 键 词：High-Efficiency Wide-Band Cross-Polarization Conversion Using Bi-layered Metal Hole Pairs 

分 类 号：TB383.2[一般工业技术—材料科学与工程]