Interaction of Electromagnetic Fields with Rough Surfaces

电磁场与粗糙表面的相互作用

• 批准号: 450966552
• 负责人: Dr.-Ing. Gerald Gold
• 金额: --
• 依托单位: Lehrstuhl für Hochfrequenztechnik
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2020
• 资助国家: 德国
• 起止时间: 2019-12-31 至 2023-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/450966552?language=en
• 关键词: Interaction; Electromagnetic; Fields; Rough; Surfaces

The scope of this research project is to complete the Gradient Model which was developed by the applicant. This field theoretical model describes the impact of rough conductor surfaces on wave propagation at high frequencies. A new description going far beyond the state of the art shall be created, that includes other than normally distributed surface profiles, the impact from possible correlation lengths of the surface as well as impact from tread grooves in directions along and across the polarization of the field.Additionally, the correlation between the field theoretically justified model and the practices of surface metrology like laser confocal microscopy shall be established and measurement parameters derived, respectively.Furthermore, the model shall be utilized to create a new metrological access to surface analysis. This will enable the derivation of the relevant surface properties in the corresponding frequency range from a measured surface impedance.

本研究项目的范围是完成申请人开发的梯度模型。该场理论模型描述了粗糙导体表面对高频波传播的影响。将创建远远超出现有技术的新描述，其包括除了正态分布的表面轮廓之外的来自表面的可能相关长度的影响以及来自胎面花纹沟在沿着和跨过场的极化的方向上的影响。场理论上合理的模型与表面计量学（如激光共聚焦显微镜）的实践之间的相关性应是此外，该模型还可用于创建一个新的表面分析工具。这将使得能够从测量的表面阻抗导出相应频率范围内的相关表面特性。