The impact of curvature on surface current near the rounded corners of a scatterer

Paul D. Smith; Audrey J. Markowskei

doi:10.23919/URSIAP-RASC.2019.8738501

The impact of curvature on surface current near the rounded corners of a scatterer

Paul D. Smith^*, Audrey J. Markowskei

^*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceeding › Conference proceeding contribution › peer-review

Abstract

When a perfectly electrically conducting two-dimensional scatterer, which is smooth except at finitely many sharp corner points, is illuminated by an E-polarised electromagnetic plane wave, the surface current density exhibits singularities at those corner points, whilst in the H-polarised case the surface density exhibits singularities in its derivative at those points. Once the corners are rounded, the surface density becomes non-singular. It is of interest to examine the impact of this rounding upon the surface current and other observed physical quantities such as the far-field, as the rounding becomes more pronounced.

Original language	English
Title of host publication	2019 URSI Asia-Pacific Radio Science Conference (AP-RASC)
Place of Publication	Piscataway, NJ
Publisher	Institute of Electrical and Electronics Engineers (IEEE)
Number of pages	1
ISBN (Electronic)	9789082598759, 9789082598742
ISBN (Print)	9781538685518
DOIs	https://doi.org/10.23919/URSIAP-RASC.2019.8738501
Publication status	Published - 2019
Event	2019 URSI Asia-Pacific Radio Science Conference, AP-RASC 2019 - New Delhi, India Duration: 9 Mar 2019 → 15 Mar 2019

Conference

Conference	2019 URSI Asia-Pacific Radio Science Conference, AP-RASC 2019
Country/Territory	India
City	New Delhi
Period	9/03/19 → 15/03/19

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10.23919/URSIAP-RASC.2019.8738501

Cite this

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title = "The impact of curvature on surface current near the rounded corners of a scatterer",

abstract = "When a perfectly electrically conducting two-dimensional scatterer, which is smooth except at finitely many sharp corner points, is illuminated by an E-polarised electromagnetic plane wave, the surface current density exhibits singularities at those corner points, whilst in the H-polarised case the surface density exhibits singularities in its derivative at those points. Once the corners are rounded, the surface density becomes non-singular. It is of interest to examine the impact of this rounding upon the surface current and other observed physical quantities such as the far-field, as the rounding becomes more pronounced.",

author = "Smith, {Paul D.} and Markowskei, {Audrey J.}",

year = "2019",

doi = "10.23919/URSIAP-RASC.2019.8738501",

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booktitle = "2019 URSI Asia-Pacific Radio Science Conference (AP-RASC)",

publisher = "Institute of Electrical and Electronics Engineers (IEEE)",

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}

Smith, PD & Markowskei, AJ 2019, The impact of curvature on surface current near the rounded corners of a scatterer. in 2019 URSI Asia-Pacific Radio Science Conference (AP-RASC). Institute of Electrical and Electronics Engineers (IEEE), Piscataway, NJ, 2019 URSI Asia-Pacific Radio Science Conference, AP-RASC 2019, New Delhi, India, 9/03/19. https://doi.org/10.23919/URSIAP-RASC.2019.8738501

The impact of curvature on surface current near the rounded corners of a scatterer. / Smith, Paul D.; Markowskei, Audrey J.
2019 URSI Asia-Pacific Radio Science Conference (AP-RASC). Piscataway, NJ: Institute of Electrical and Electronics Engineers (IEEE), 2019.

Research output: Chapter in Book/Report/Conference proceeding › Conference proceeding contribution › peer-review

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T1 - The impact of curvature on surface current near the rounded corners of a scatterer

AU - Smith, Paul D.

AU - Markowskei, Audrey J.

PY - 2019

Y1 - 2019

N2 - When a perfectly electrically conducting two-dimensional scatterer, which is smooth except at finitely many sharp corner points, is illuminated by an E-polarised electromagnetic plane wave, the surface current density exhibits singularities at those corner points, whilst in the H-polarised case the surface density exhibits singularities in its derivative at those points. Once the corners are rounded, the surface density becomes non-singular. It is of interest to examine the impact of this rounding upon the surface current and other observed physical quantities such as the far-field, as the rounding becomes more pronounced.

AB - When a perfectly electrically conducting two-dimensional scatterer, which is smooth except at finitely many sharp corner points, is illuminated by an E-polarised electromagnetic plane wave, the surface current density exhibits singularities at those corner points, whilst in the H-polarised case the surface density exhibits singularities in its derivative at those points. Once the corners are rounded, the surface density becomes non-singular. It is of interest to examine the impact of this rounding upon the surface current and other observed physical quantities such as the far-field, as the rounding becomes more pronounced.

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U2 - 10.23919/URSIAP-RASC.2019.8738501

DO - 10.23919/URSIAP-RASC.2019.8738501

M3 - Conference proceeding contribution

SN - 9781538685518

BT - 2019 URSI Asia-Pacific Radio Science Conference (AP-RASC)

PB - Institute of Electrical and Electronics Engineers (IEEE)

CY - Piscataway, NJ

T2 - 2019 URSI Asia-Pacific Radio Science Conference, AP-RASC 2019

Y2 - 9 March 2019 through 15 March 2019

ER -

The impact of curvature on surface current near the rounded corners of a scatterer

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