基于层间耦合的宽带毫米波超表面天线

Broadband millimeter-wave metasurface antenna based on interlayer coupling

通信技术快速发展,对高速、大容量通信需求迫切。然而,传统频谱资源受限,难以满足需求,毫米波天线备受瞩目。本研究旨在改善传统微带贴片天线的带宽和增益问题。通过加载超表面结构和加强层间耦合的方法,设计了24~50 GHz宽带毫米波超表面天线。该天线采用层压方式将超表面加载在介质层中,通过仿真分析了超表面参数对天线带宽的影响,从而确定最佳天线结构尺寸,并进行了天线的制作和性能测试。仿真和实测结果表明,该天线能够实现24~50 GHz的宽带,相比传统贴片天线,其带宽增加了52.23%,并具有良好的辐射特性和增益性能。该宽带毫米波超表面天线在宽频段通信、5G通信等领域具备广阔的应用前景。

With the rapid advancement of the communication technology,the demand for high-speed and high-capacity communication has become increasingly urgent.However,traditional spectrum resources were limited and struggled to meet these demands.As a result,millimeter-wave antennas have emerged as the potential solutions,which attracted significant attention.This study aimed to address the bandwidth and gain issues linked with conventional microstrip patch antennas.By incorporating a metasurface structure and enhancing interlayer coupling,a wideband millimeter-wave metasurface antenna operating in the 24-50 GHz range was designed.The metasurface was integrated into the dielectric layer using a lamination technique.The impact of the metasurface parameters on the antenna bandwidth was analyzed through simulation to optimize the antenna dimensions.Subsequently,the antenna was fabricated and tested.The simulation and measurement results demonstrate that the proposed antenna can achieve a wide bandwidth spanning 24-50 GHz,representing 52.23%increasement compared to that of traditional patch antennas.Moreover,the antenna exhibits favorable radiation characteristics and gain performance.The designed wideband millimeter-wave metasurface antenna demonstrates broad application prospects in various fields,including wideband communication and 5G technology.