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| 下载次数 | 被引频次 | 阅读次数 |
随着无线通信应用的飞速发展,频谱资源日益紧张,射频频谱资源已日趋香农极限。为解决这个问题,无线通信中引入了携有轨道角动量(Orbital Angular Momentum,OAM)的涡旋电磁波,以有效提高频谱利用率。微带天线阵技术是产生涡旋电磁波常用的方法之一,以同轴馈电的矩形微带天线为阵元,设计了阵元数目分别为6,8,12的3种环形阵列天线,来产生携带有轨道角动量的涡旋电磁波。分析了不同轨道角动量模式数下,涡旋电磁波辐射能量和最大增益辐射角度变化情况。利用Ansoft HFSS仿真软件,在中心频率10 GHz处,比较了阵元数目对电磁波的涡旋特性影响。仿真结果表明,更多数量的天线阵列产生的涡旋电磁波涡旋性能更好。
Abstract：With the rapid development of wireless communication applications,the spectrum resources become increasingly insufficient,and spectrum resource in radio frequency is reaching Shannon Limit.To solve this problem,the orbital angular momentum(OAM) is used in radio communications.There are several methods of generating the vortex wave carried OAM,and the generating method based on microstrip array antenna is an important one.This paper describes the design of circular microstrip array with different element numbers,which can generate electromagnetic wave carrying orbital angular momentum at 10 GHz.By using the rectangular microstrip antenna as array element,the three kinds of array antenna with the array elements number of 6,8,12,respectively.This paper analyzes the variation of vortex electromagnetic wave's radiation energy and maximum gain angle in different orbital angular momentum modes.Using high-frequency structure simulator(Ansoft HFSS),the influence of different number of elements on the vortex characteristics of electromagnetic waves is compared.The simulation results show that with the increase of the elements number,the better electromagnetic wave vortex performance can be obtained.
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基本信息:
DOI：
中图分类号:TN820
引用信息:
[1]顾磊,顾易帆,熊德平等.X波段下产生涡旋电磁波的阵列天线设计[J].无线电工程,2019,49(03):238-243.
基金信息:
2017年浙江省人力资源和社会保障科学研究基金资助项目(2017119);; 广州市科技计划资助项目(2016201604030035)