Diffraction-like Synthetic Functions to Treat the Scattering from Large Polyhedral Metallic Objects”
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Diffraction-like Synthetic Functions to Treat the Scattering from Large Polyhedral Metallic Objects”摘要
This paper presents an innovative procedure that allow for the Method of Moments (MoM) analysis of electrically large objects composed of flat faces, i.e. open or closed polyhedrons with or without attached plates. The method is framed within the category of iteration free, compressive basis function approaches. Two kinds of diffraction-like basis functions are introduced to achieve drastic memory requirement compression; relevant results compared with those obtained employing standard RWG basis functions are presented.
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-80 -60 -40 -20 0 20 40 60 80
Theta [deg]
Radiated Far Field [V/m]
Phi=90 Plane
FEKO
SWG-DBF
PWG-DBF
-80 -60 -40 -20 0 20 40 60 80
Radiated Far Field [V/m]
Phi=0 Plane
FEKO
SWG-DBF
PWG-DBF
Theta [deg] -2λ -1.5λ -λ -0.5λ 0 0.5λ λ 1.5λ 2λ
1
2
3
4
5
6
7
8
9
1
y
Amplitude of induced current [A/m]
Phi=90 Plane
FEKO
SWG-DBF
PWG-DBF
-2λ -1.5λ - λ -0.5 λ 0 0.5λ λ 1.5λ 2λ
1
2
3
4
5
6
7
8
9
1
x
Amplitude of induced current
[A/m]
Phi=0 Plane
FEKO
SWG-DBF
SBG-DBF
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