现代电子技术2024，Vol.47Issue(9)：177-181,5.DOI:10.16652/j.issn.1004-373x.2024.09.032
介质粗糙面与组合目标宽带电磁散射特性研究
Study on electromagnetic scattering characteristics of rough dielectric surfaces and composite targets in wideband range
摘要
Abstract
The composite electromagnetic scattering characteristics of rough dielectric surface and composite targets in wideband range are studied.The frequency response curve of composite scattering coefficient is obtained by numerical calculation.The analysis results show that the backscattering coefficient exhibits oscillatory variations with frequency in the range of wide frequency band,and parameters such as the root mean square(RMS)of the rough surface height,dielectric constant,scale of the composite target,and the target's dielectric constant exhibit significant influence on the backscattering coefficient,with more complicated influence law.Conversely,the influence of the correlation length of the rough surface on the composite scattering coefficient is relatively week.When the target is an ideal conductor,the frequency response curve approximates a quasi-periodic oscillation.关键词
介质粗糙面/组合目标/宽带复合散射/时域有限差分方法/电磁散射特性/频率响应曲线Key words
rough dielectric surface/composite target/wideband composite scattering/finite difference time domain method/electromagnetic scattering characteristic/frequency response curve分类
信息技术与安全科学引用本文复制引用
朱小敏,于泽文..介质粗糙面与组合目标宽带电磁散射特性研究[J].现代电子技术,2024,47(9):177-181,5.基金项目
国家自然科学基金项目(61861043) （61861043）
国家自然科学基金项目(61701428) （61701428）
国家自然科学基金项目(61801416) （61801416）
