一种电离层涡旋波加热模式下的阵列馈电设计方法

doi:10.3969/j.issn.0372-2112.2018.06.021

电子学报 ›› 2018, Vol. 46 ›› Issue (6): 1415-1420.DOI: 10.3969/j.issn.0372-2112.2018.06.021

一种电离层涡旋波加热模式下的阵列馈电设计方法

崔玉国, 郝书吉, 班盼盼

中国电波传播研究所电波环境特性及模化技术重点实验室, 山东青岛 266107

收稿日期:2016-12-29 修回日期:2017-04-05 出版日期:2018-06-25
- 作者简介:
- 崔玉国,男,1984年生于山东,硕士,中国电波传播研究所高级工程师,主要研究方向为电波传播、相控阵系统设计、天线测试等.E-mail:cuiyg0818@163.com;郝书吉,男,1978年生于河南,博士,中国电波传播研究所高级工程师,主要研究方向为电波传播、电离层人工扰动、相控阵天线系统等.;班盼盼,女,1984年生于河南,硕士,中国电波传播研究所高级工程师,主要研究方向为电波传播、电离层短期预报等.

An Array Feeding Design Method for Ionospheric Heating with Vortex Beam

CUI Yu-guo, HAO Shu-ji, BAN Pan-pan

China Research Institute of Radiowave Propagation, National Key Laboratory of Electromagnetic Environment, Qingdao, Shandong 266107, China

Received:2016-12-29 Revised:2017-04-05 Online:2018-06-25 Published:2018-06-25

摘要/Abstract

摘要： 涡旋波加热是目前电离层加热试验技术研究的一个热点，但主要侧重于试验现象的分析和解释，对产生涡旋波的阵列馈电设计方法讨论很少.本文首先基于菲涅耳衍射理论，在近轴近似条件下推导出电离层加热涡旋波自由空间传播特性的解析表达式，作为涡旋波加热模式下阵列馈电设计方法的检验依据；然后依据矢量磁位的非齐次赫姆霍茨方程，得到了任意阶拉盖尔-高斯涡旋波模式下的阵列馈电分布计算公式，并用已有文献的结果进行了验证，为馈电幅相设计方法提供了理论指导；在此基础上，引入"稀疏阵"的概念，以矩形平面阵为例，给出了一种涡旋场模式下天线阵列馈电幅相的设计方法.该方法简单方便，实用性强，并可推广应用于任意平面阵列形式.仿真结果验证了本文方法的正确性.

关键词: 涡旋波, 菲涅尔衍射, 赫姆霍茨方程, 稀疏阵

Abstract: Vortex beam heating is a research hotspot in ionospheric heating experimental technique.The existing research work focuses on the analysis and interpretation of experimental phenomena,while there are few discussions about the array feeding design method.Based on the Fresnel diffraction theory,the analytical expression of propagation characteristics of vortex beam in free space is deduced,as the inspection basis for the array feeding design method in the vortex heating mode.According to the Helmholtz equation of magnetic vector potential,the calculation formula of array feeding distribution for arbitrary order Laguerre-Gaussian vortex beam is derived.Then the formula is verified by the results of the existing literature.This provides the theoretical guidance for the array feeding design.By introducing the concept of sparse array,a design method of array feeding is presented,which is simple,convenient,practical and can be applied to any planar array.Simulation results demonstrate the effectiveness of the method.

Key words: vortex beam, Fresnel diffraction, Helmholtz equation, sparse array

中图分类号:

TN820.1

崔玉国, 郝书吉, 班盼盼. 一种电离层涡旋波加热模式下的阵列馈电设计方法[J]. 电子学报, 2018, 46(6): 1415-1420.

CUI Yu-guo, HAO Shu-ji, BAN Pan-pan. An Array Feeding Design Method for Ionospheric Heating with Vortex Beam[J]. Acta Electronica Sinica, 2018, 46(6): 1415-1420.

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一种电离层涡旋波加热模式下的阵列馈电设计方法

An Array Feeding Design Method for Ionospheric Heating with Vortex Beam

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