Soft polarization diffraction coefficient for a conducting cylinder-tipped wedge

Marios Andreas Christou; Anastasis C. Polycarpou; Nectarios C. Papanicolaou

doi:10.1109/TAP.2010.2078479

Soft polarization diffraction coefficient for a conducting cylinder-tipped wedge

Research output: Contribution to journal › Article › peer-review

Abstract

TM_z electromagnetic scattering from a perfectly conducting wedge with a cylindrical tip is formulated using a mode-matching technique. The eigenmode expansion is then written in a convenient form, where the total field is expressed as a superposition of a wedge-diffraction term based on the uniform theory of diffraction, a geometrical optics term, and a Correction Field term due to the presence of the cylindrical tip. The obtained diffraction coefficient can be easily incorporated into existing ray-tracing, high-frequency codes for the prediction of scattered fields from electrically large structures. The underlined formulation and obtained expressions are verified by comparing numerical results with the finite element method.

Original language	English
Article number	5582251
Pages (from-to)	4082-4085
Number of pages	4
Journal	IEEE Transactions on Antennas and Propagation
Volume	58
Issue number	12
DOIs	https://doi.org/10.1109/TAP.2010.2078479
Publication status	Published - Dec 2010

Keywords

Diffraction coefficient
electromagnetic scattering
mode-matching method
perfectly conducting wedge

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10.1109/TAP.2010.2078479

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title = "Soft polarization diffraction coefficient for a conducting cylinder-tipped wedge",

abstract = "TMz electromagnetic scattering from a perfectly conducting wedge with a cylindrical tip is formulated using a mode-matching technique. The eigenmode expansion is then written in a convenient form, where the total field is expressed as a superposition of a wedge-diffraction term based on the uniform theory of diffraction, a geometrical optics term, and a Correction Field term due to the presence of the cylindrical tip. The obtained diffraction coefficient can be easily incorporated into existing ray-tracing, high-frequency codes for the prediction of scattered fields from electrically large structures. The underlined formulation and obtained expressions are verified by comparing numerical results with the finite element method.",

keywords = "Diffraction coefficient, electromagnetic scattering, mode-matching method, perfectly conducting wedge",

author = "Christou, \{Marios Andreas\} and Polycarpou, \{Anastasis C.\} and Papanicolaou, \{Nectarios C.\}",

year = "2010",

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doi = "10.1109/TAP.2010.2078479",

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T1 - Soft polarization diffraction coefficient for a conducting cylinder-tipped wedge

AU - Christou, Marios Andreas

AU - Polycarpou, Anastasis C.

AU - Papanicolaou, Nectarios C.

PY - 2010/12

Y1 - 2010/12

N2 - TMz electromagnetic scattering from a perfectly conducting wedge with a cylindrical tip is formulated using a mode-matching technique. The eigenmode expansion is then written in a convenient form, where the total field is expressed as a superposition of a wedge-diffraction term based on the uniform theory of diffraction, a geometrical optics term, and a Correction Field term due to the presence of the cylindrical tip. The obtained diffraction coefficient can be easily incorporated into existing ray-tracing, high-frequency codes for the prediction of scattered fields from electrically large structures. The underlined formulation and obtained expressions are verified by comparing numerical results with the finite element method.

AB - TMz electromagnetic scattering from a perfectly conducting wedge with a cylindrical tip is formulated using a mode-matching technique. The eigenmode expansion is then written in a convenient form, where the total field is expressed as a superposition of a wedge-diffraction term based on the uniform theory of diffraction, a geometrical optics term, and a Correction Field term due to the presence of the cylindrical tip. The obtained diffraction coefficient can be easily incorporated into existing ray-tracing, high-frequency codes for the prediction of scattered fields from electrically large structures. The underlined formulation and obtained expressions are verified by comparing numerical results with the finite element method.

KW - Diffraction coefficient

KW - electromagnetic scattering

KW - mode-matching method

KW - perfectly conducting wedge

UR - https://www.scopus.com/pages/publications/78649989485

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M3 - Article

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JO - IEEE Transactions on Antennas and Propagation

JF - IEEE Transactions on Antennas and Propagation

IS - 12

M1 - 5582251

ER -

Soft polarization diffraction coefficient for a conducting cylinder-tipped wedge

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Keywords

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