An Array Feeding Design Method for Ionospheric Heating with Vortex Beam

doi:10.3969/j.issn.0372-2112.2018.06.021

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An Array Feeding Design Method for Ionospheric Heating with Vortex Beam

更新时间：2025-07-08

- An Array Feeding Design Method for Ionospheric Heating with Vortex Beam
- Acta Electronica Sinica Vol. 46, Issue 6, Pages: 1415-1420(2018)
- 作者机构：
  
  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
- 作者简介：
- 基金信息：
- DOI：10.3969/j.issn.0372-2112.2018.06.021
  CLC： TN820.1
- Published Online：25 June 2018，
  
  Published：2018
- 稿件说明：
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An Array Feeding Design Method for Ionospheric Heating with Vortex Beam[J]. Acta Electronica Sinica, 2018, 46(6): 1415-1420.
DOI：

An Array Feeding Design Method for Ionospheric Heating with Vortex Beam[J]. Acta Electronica Sinica, 2018, 46(6): 1415-1420. DOI： 10.3969/j.issn.0372-2112.2018.06.021.

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.

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.

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