Improved buffered block forward backward method for electrically large three-dimensional perfectly conducting bodies

2013 ◽  
Author(s):  
C. Brennan ◽  
M. Condon ◽  
Vinh Pham-Xuan
Keyword(s):  
Three Dimensional ◽  
Conducting Bodies

A numerical solution for conducting bodies of arbitrary shape

1990 ◽  
Vol 68 (6) ◽  
pp. 459-468 ◽  
Author(s):  
H. Moheb ◽  
L. Shafai
Keyword(s):  
Electromagnetic Scattering ◽  
Arbitrary Shape ◽  
Numerical Technique ◽  
Three Dimensional ◽  
Surface Current ◽  
Basis Functions ◽  
The Other ◽  
Current Component ◽  
Discrete Surfaces ◽  
Conducting Bodies

An efficient numerical technique based on a Fourier expansion of the surface current is developed to study the electromagnetic scattering from three-dimensional geometries of arbitrary shape. In this method, the discrete domain representing the structure surface is geometrically represented by two orthogonal contours. One is selected along the intersection of the x–z plane with the object's surface, and the other along the corresponding one in the x–y plane. Entire domain basis functions are selected for the current component in the x–y plane, and subdomain linear basis functions are used to represent the other current component. The method of moments is used to solve the problem numerically. The technique is then applied to study the scattering from discrete surfaces such as squares and rectangles, to compare them with those of the coordinate-transformation technique developed earlier. The behavior of the solutions with the number of modes is investigated to determine their coupling.

The Perturbation of Slowly Varying Electromagnetic Fields by Three-Dimensional Conducting Bodies

1974 ◽  
Vol 52 (13) ◽  
pp. 1195-1202 ◽  
Author(s):  
F. W. Jones
Keyword(s):  
Numerical Method ◽  
Electromagnetic Fields ◽  
Three Dimensional ◽  
Two Dimensional ◽  
Source Field ◽  
Induced Currents ◽  
Dimensional Models ◽  
Conducting Bodies

The perturbation of a slowly varying alternating field by conducting bodies of cubic shape is considered. A numerical method is used to determine the fields associated with the induced currents. Current concentrations are produced in the corners of the conductors, and these move inward and decay with time as the source field varies. A cavity region within the conductor further distorts the fields. A comparison is made with two-dimensional models.

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