基于几何学的吸波材料与微波暗室性能分析

林晓敏; 聂建英

doi:10.15892/j.cnki.djzdxb.2012.04.026

2012 , Vol. 32 >Issue 4: 211 - 214,218

DOI: https://doi.org/10.15892/j.cnki.djzdxb.2012.04.026

摘要

针对导弹导引仿真对微波暗室的性能要求,用几何光学法和能量积分法建立了微波暗室性能的评价模型。从几何光学原理出发,分析了电磁波在尖劈形吸波材料中的反射情况,得出尖劈顶角与反射率、反射次数之间的关系。给出静区能量的积分计算方法。简化了Maxwell求解问题的复杂度,提高了工程计算效率。计算结果比传统方法更具有工程应用价值。

关键词： 吸波材料; 反射路径; 微波暗室; 静区性能; 功率比

本文引用格式

林晓敏 , 聂建英 . 基于几何学的吸波材料与微波暗室性能分析[J]. 弹箭与制导学报, 2012 , 32(4) : 211 -214,218 . DOI: 10.15892/j.cnki.djzdxb.2012.04.026

Abstract

A microwave anechoic chamber performance evaluation model was established for the requirement of anechoic chamber performance for missile guidance simulation. The model was established by geometrical optics and energy integral. Electromagnetic wave promulgating in pyramid absorber was analyzed from the principle of geometrical optics. The relation among absorber's apical angle and refracting rate, reflection frequency was educed. A method of blind zone energy integral calculation was presented. It simplifies Maxwell's equation and improves the efficiency of engineering computing. The result is more valuable than traditional methods.

Key words： absorbing material; reflection path; anechoic chamber; blind zone performance; ratio of power

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参考文献

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