面向表面行波散射抑制的阻抗调制变量分析

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关键词：雷达散射截面；渐变阻抗；表面行波；散射抑制

中图分类号：TN04

文献标识码：A

DOI：10.14106/j.cnki.1001-2028.2025.0033

引用格式：包家昕， 钟小丹， 崔浩. 面向表面行波散射抑制的阻抗调制变量分析 [J]. 电子元件与材料， 2025， 44（1）： 9-14.

Reference format： BAO Jiaxin， ZHONG Xiaodan， CUI Hao. Analysis of impedance modulation variables for surface travelling wave scattering suppression [J]. Electronic Components and Materials， 2025， 44（1）： 9-14.

Analysis of impedance modulation variables for surface travelling

wave scattering suppression

BAO Jiaxin， ZHONG Xiaodan， CUI Hao

（Shenyang Aircraft Design & Research Institute， Shenyang 110035， China）

Abstract： To address the problems of poor low-frequency performance， high weight， and limited environmental adaptability of traditional radar absorbing materials， the introduction of graded impedance structures at material discontinuities was proposed as a means to suppress surface traveling wave scattering. By establishing an electromagnetic model of the metal-air interface， the radar scattering characteristics before and after incorporating a graded impedance structure at the interface were compared， and the impact of the graded impedance structure on traveling wave scattering at the metal-air boundary was analyzed. A systematic study was carried out on the effect of impedance modulation variables on the suppression of surface traveling wave scattering over a wide frequency band for horizontally polarized incident electromagnetic waves， and the underlying patterns were summarized. Electromagnetic simulation results demonstrated a reduction in the radar cross section （RCS） over a wide range of incidence angles and within a broad frequency band from 0.6 GHz to 15 GHz. Notably， the reduction was particularly significant at the peak angle of traveling wave scattering， reaching up to 23.72 dB. These findings provide a theoretical basis and effective reference for the suppression of surface traveling wave scattering on aircraft surfaces.

Keywords： radar cross section; gradient impedance; surface traveling wave; scattering suppression

全向、宽频、低可探测性是武器装备机体平台隐身性能的关键性特征，已成为世界各国战斗机的重要指标[1-2]。（剩余7423字）