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Math. Comput. Appl. 2003, 8(2), 143-150; doi:10.3390/mca8020143

Asymptotic Evaluation of the Edge Diffraction in Cylindric Paraboloidal Reflector Antennas

Uludağ University, Faculty of Engineering & Architecture, Department of Electronics, 16059, Bursa, Turkey
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Published: 1 August 2003
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Abstract

Diffraction fields on the edge of a cylindrical parabolic reflector antenna are examined. Firstly canonical problem is defined for the edge of the antenna and study is reduced to a half plane scattering problem. Coordinate system is defined as the origin being the edge of the reflector, so the feed became offset. Space is divided into two parts according to p and edge diffracted fields are calculated for the region where ρρ0. Obtained poorly divergent series are changed into complex integrals for k→∞ and these integrals are solved in the same conditions. Uniform expression of edge diffracted field is calculated by using Fresnel integrals.
Keywords: Edge diffraction; Asymptotic Evaluation; parabolic reflector antenna; Fresnel integral Edge diffraction; Asymptotic Evaluation; parabolic reflector antenna; Fresnel integral
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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MDPI and ACS Style

Umul, Y.Z.; Yalçin, U. Asymptotic Evaluation of the Edge Diffraction in Cylindric Paraboloidal Reflector Antennas. Math. Comput. Appl. 2003, 8, 143-150.

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