论文标题
垂直偶极子上方的垂直偶极子的建模：特征模式理论
Modeling of Vertical Dipole Above Lossy Dielectric Half-Space: Characteristic Mode Theory
论文作者
论文摘要
这项工作介绍了特征模式公式的理论扩展，用于分析位于有损介电的半空间上方的垂直电偶极子。由于传统的特征配方无法维持无限球体特征场模式的正交性，因此在此提出了替代的模态公式，以维持当前和场模式的正交性。发现模态结果与其力矩对应方法紧密匹配。后来，使用没有接地平面的孤立偶极子的模式通过特征向量的线性组合理论来预测有损耗的接地平面的作用。已经研究了所提出的配方与接地平面不同的高度，并与直接模态溶液进行了比较，以验证其精度。它有助于对孤立模式如何相互相互作用，以构成有损的半空间的扰动模式。它可以找到在闪电场研究中包括有损地球效应的应用以及在有损地面上天线的路径损失建模。
This work introduces a theoretical extension of the characteristic mode formulation for analysing the vertical electric dipole lying above a lossy dielectric half-space. As the conventional characteristic formulation fails to maintain the orthogonality of the characteristic field modes over the infinite sphere, an alternate modal formulation is proposed here to maintain the orthogonality for both the current and field modes. The modal results are found to match closely with its method of moment counterparts. Later, the modes of an isolated dipole with no ground plane have been used to predict the role of the lossy ground plane through a theory of the linear combination of the eigenvectors. The proposed formulations have been studied with different heights from the ground plane and are compared with the direct modal solutions to validate its accuracy. It helps to provide a thorough understanding of how the isolated modes interact among each other to constitute the perturbed modes in the presence of the lossy half-space. It can find application to include the lossy earth effect in the study of the lightning fields and the path loss modelling of the antennas over the lossy ground.
