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In this work, the authors proposed a new method for the above field calculation, which utilizes the analytical expression for the near fields radiated by an electrically small dipole. The proposed method is found to be well suited for mitigating the problem of singularities encountered in the process of field computation while constructing the MoM matrix.
In this paper, we present a method to accurately and efficiently compute the radiation from a numerically-defined set of currents represented in terms of a modified version of the classical rooftop basis functions. The shape of the scatterer is completely arbitrary and may be defined by NURBS surfaces [4], Since a NURBS representation is used in most of the CAD design software, this formulation enables...
The paper presents a new dipole-moment-based approach for formulating MoM-type problems. The method is universal in nature and it applies equally well to PEC and dielectric objects. The dipole moment (DM) formulation neither suffers from the singularity problem associated with the Green's functions, nor does it experience any difficulties at low frequencies, as do the conventional MoM formulations.
This letter presents an interpolation algorithm to reduce the computation time needed to generate the reduced matrix in the characteristic basis function method (CBFM). The first step in this approach is to identify the observation points and calculate the electric fields at those points that are produced by the induced currents represented by the macro basis functions (MBFs) called the characteristic...
A new efficient technique for calculating the reaction between characteristics basis functions has been presented. The proposed method enables us to bypass the computation of the off-diagonal of the MoM matrix. For the case of contiguous blocks, an efficient hybrid approach has been developed that combines the conventional MoM matrix approach with the interpolation technique. Numerical results show...
This paper presents an interpolation scheme to reduce the computation time needed to generate the reduced matrix in the Characteristic Basis Function Method (CBFM). The first step in this approach is to identify the observation points and calculate the electric fields at those points that are produced by the induced currents represented by the macro-basis functions called the Characteristic Basis...
We have presented herein a procedure for the generation of high-level Characteristic Basis Functions by using a chained SVD-based technique. The proposed method reduces the overall number of basis functions to be considered for the generation of the reduced matrix and, furthermore, it is very well suited for combining it with a CBFM-MLFMA implementation, because of the similarities between the hierarchical...
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