Real-time programmable coding metasurface antenna for multibeam switching and scanning  

作　　者：Jia-Yu Yu Qiu-Rong Zheng Bin Zhang Jie He Xiang-Ming Hu Jie Liu 余佳宇;郑秋容;张斌;贺杰;胡湘明;刘杰(Information and Navigation College,Air Force Engineering University,Xi'an 710077,China)

机构地区：[1]Information and Navigation College,Air Force Engineering University,Xi'an 710077,China

出　　处：《Chinese Physics B》2022年第9期260-267,共8页中国物理B（英文版）

摘　　要：Novel electromagnetic wave modulation by programmable dynamic metasurface promotes the device design freedom,while multibeam antennas have sparked tremendous interest in wireless communications.A programmable coding antenna based on active metasurface elements(AMSEs)is proposed in this study,allowing scanning and state switching of multiple beams in real time.To obtain the planar array phase distribution in quick response,the aperture field superposition and discretization procedures are investigated.Without the need for a massive algorithm or elaborate design,this electronically controlled antenna with integrated radiation and phase-shift functions can flexibly manipulate the scattering state of multiple beams under field-programmable gate array(FPGA)control.Simulation and experimental results show that the multiple directional beams dynamically generated in the metasurface upper half space have good radiation performance,with the main lobe directions closely matching the predesigned angles.This metasurface antenna has great potential for future applications in multitarget radar,satellite navigation,and reconfigurable intelligent metasurfaces.

关 键 词：programmable coding metasurface multibeam modulation real-time control ANTENNA 

分 类 号：TN820[电子电信—信息与通信工程] O441.4[理学—电磁学]