四维多极化天线阵

Four Dimensional Simultaneous Multi-Polarization Antenna Array

针对通信感知一体化应用,利用四维天线阵技术实现了能够同时辐射多个极化波的新型天线阵。该天线阵列由四维天线阵馈电网络和4端口圆环阵列组成。四维天线阵特有的时间调制特性可以在不改变天线结构且不引入移相器的情况下,在中心频率产生垂直极化全向辐射波束,在第一边带产生左旋圆极化定向辐射波束,在负一边带产生右旋圆极化定向辐射波束。相比于传统极化可重构、波束可重构天线,四维天线阵结构简单,且三种极化状态和两种辐射波束可以同时实现,更好地满足多功能一体化系统需求。

For integrated sensing and communication applications,a four-dimensional(4D)antenna array capable of simultaneously radiating multiple beams with different polarizations is proposed.The antenna array consists of a 4D antenna array feed network and a 4-port circular antenna array.The unique time modulation characteristics of the 4D antenna array enable the simultaneous radiation of the multi-polarization waves of the 4-port circular antenna array without changing the antenna structure or introducing active phase shifters.The vertically-polarized directional beam is generated at the center frequency,the left circularly-polarized directional beam is generated at the first band,and the right circularly-polarized directional radiation beam is generated at the negative band.Compared with the traditional polarization reconfigurable antenna and the beam reconfigurable antenna,the proposed antenna offers much simpler structure and flexibility.The three polarization states and two beam states of the proposed antenna can be realized simultaneously,effectively meeting the requirements of future multi-functional integrated systems.