An efficient method to compute spurious end point contributions in PO solutions

A method is given to compute the spurious end point contributions in the physical optics (PO) solution for electromagnetic scattering from conducting bodies. The method is applicable to general three-dimensional structures. The only information required to use the method is the radius of curvature o...

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Bibliographic Details
Published in:I.R.E. transactions on antennas and propagation 1987-12, Vol.35 (12), p.1426-1435
Main Authors: Gupta, I., Pistorius, C., Burnside, W.
Format: Article
Language:English
Subjects:
Applied sciences
Backscatter
Communications And Radar
Conductors
Diffraction, scattering, reflection
Electromagnetic scattering
Engine cylinders
Exact sciences and technology
Frequency
Optical computing
Optical scattering
Optical surface waves
Physical optics
Physics computing
Radiocommunications
Radiowave propagation
Telecommunications
Telecommunications and information theory
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Summary:A method is given to compute the spurious end point contributions in the physical optics (PO) solution for electromagnetic scattering from conducting bodies. The method is applicable to general three-dimensional structures. The only information required to use the method is the radius of curvature of the body at the shadow boundary. Thus, the method is very efficient for numerical computations. As an illustration, the method is applied to several bodies of revolution to compute the end point contributions for backscattering in the case of axial incidence. It is shown that in high frequency situations, the end point contributions obtained using the method are equal to the true end point contributions.
ISSN:0018-926X
0096-1973
1558-2221
DOI:10.1109/TAP.1987.1144037