F. Mazeh, H. Ayad, F. Ndadijimana, G. Faour, M. Fadlallah, J. Jomaah
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引用次数: 1
摘要
本文介绍了在电磁模拟器中逐步提取干雪和湿雪有效介电常数的方法。利用有限元全波模拟器HFSS (High Frequency Structure Simulator)提取s参数。利用S21反演法计算了介电常数曲线。将计算得到的介电常数与理论混合模型(Maxwell Garnett和Bruggeman对称)进行了比较，证实介电常数位于有效介电常数理论边界之间。
Effective permittivity of snow for radar detection: Numerical validation by the fem method
This paper presents a step-by-step procedure to extract the effective permittivity of dry and wet snow in an electromagnetic simulator. The S-parameters are extracted using HFSS (High Frequency Structure Simulator), which is a Finite Element Method (FEM) full wave simulator. The permittivity curve is calculated using the S21 retrieval method. The calculated permittivity is compared with theoretical mixture models (Maxwell Garnett and Bruggeman Symmetric) with a verification that it lies between the effective permittivity theoretical bounds.
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