An ultra-wideband coding polarizer for beam control and RCS reduction  

作　　者：Huanhuan Gao Xiaojun Huang Xiongwei Ma Xiaoyan Li Linyan Guo Helin Yang 

机构地区：[1]College of Communication and Information Engineering,Xi’an University of Science and Technology,Xi’an 710054,China [2]College of Physical Science and Technology,Northwestern Polytechnical University,Xi’an 710129,China [3]School of Geophysics and Information Technology,China University of Geosciences,Beijing 100083,China [4]College of Physical Science and Technology,Central China Normal University,Wuhan 430079,China

出　　处：《Frontiers of physics》2023年第4期291-299,共9页物理学前沿（英文版）

基　　金：supported by the National Natural Science Foundation of China(No.42274189);the Project of Science and Technology of Shaanxi(No.2021JM-395).

摘　　要：Pancharatnam–Berry(PB)phase metasurface,as a special class of gradient metasurfaces,has been paid much attention owing to the robust performance for phase control of circularly polarized waves.Herein,we present an element-based polarizer for the first step,which enables the incident electromagnetic waves into the cross-polarized waves with the relative bandwidth of 71%,and the polarization conversion ratio exceeds 90%at 6.9–14.5 GHz.Then an eight-elements coding polarizer based on the PB phase is presented for the applications on beam control and radar cross section reduction.The simulated values indicate that the reduction of radar cross section is more than 10 dB at 6–16 GHz.Our work reveals the availability of manipulating the waves,beamforming in communication systems and electromagnetic stealth,and so on.

关 键 词：POLARIZER Pancharatnam-Berry phase coding metasurface beam control RCS reduction 

分 类 号：O43[机械工程—光学工程]