Evaluation of Time Domain Physical Optics Integral on Curved Surfaces

Evaluation of Time Domain Physical Optics Integral on Curved Surfaces

A scheme to evaluate the physical optics (PO) integral in closed form over the curved triangular patches is presented. The PO integral is interpreted as a Radon transform, as a result the PO integral over the curved triangle surface is reduced to a line integral. This line is determined as the inter...

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Bibliographic Details
Published in:2018 2nd URSI Atlantic Radio Science Meeting (AT-RASC) pp. 1 - 3
Main Authors: Aktepe, Aslihan, Serim, Huseyin A., Ulku, H. Arda
Format: Conference Proceeding
Language:English
Published: International Union of Radio Science URSI 01-05-2018
Subjects:
Antennas
Optical surface waves
Physical optics
Radon
Surface waves
Time-domain analysis
Transforms
Online Access:Get full text
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Summary:A scheme to evaluate the physical optics (PO) integral in closed form over the curved triangular patches is presented. The PO integral is interpreted as a Radon transform, as a result the PO integral over the curved triangle surface is reduced to a line integral. This line is determined as the intersection of the plane, which is formed by the propagation direction of the incident wave and the observation direction' and curved triangular surface (integration domain). The line integral in time domain can be evaluated in closed-form. A numerical example that shows the validity and accuracy of the scheme is presented.
DOI:10.23919/URSI-AT-RASC.2018.8471503