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针对涡旋电磁波远距离通信能力评估需求,提出一种测量涡旋电磁波远距离波前相位的方法,在青岛海域开展了涡旋电磁波跨海远距离传播特性测试实验。测量了频率10 GHz,3.7 km距离模态1、模态2与7 km距离模态1涡旋电磁波波前相位保持特性。结果表明,在10 GHz,7 km距离处,涡旋电磁波波前相位依然能够保持涡旋特性,可以用于轨道角动量域复用通信。
Abstract：To evaluate the capability of long-distance communication using vortex EM wave,a new method of measuring the long-distance wavefront phase of vortex wave is proposed,and a test of long-distance oversea propagation characteristics of vortex EM wave is performed in Qingdao sea area.The wavefront phase preservation characteristics of vortex EM wave at Mode 1 and 2 for 3.7 km and mode 1 for 7 km at 10 GHz are measured.The results show that,at 10 GHz with the distance 7 km,the vortex EM wavefront phase can still keep vortex characteristics,so it can be used for multiplexing in orbital angular momentum domain.
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基本信息:
DOI：
中图分类号:TN011
引用信息:
[1]曹仲晴,林乐科,郭立新等.涡旋电磁波跨海远距离传播特性研究[J].无线电工程,2019,49(08):724-726.
基金信息: