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research article

Singular Behavior Analysis of Green’s Functions in Uniaxial Media Using Ordinary Differential Equations

Le Boudec, Elias  
•
Mora, Nicolas
•
Mosig, Juan  
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May 1, 2023
URSI Radio Science Letters

We derive the electric and magnetic Green's functions in homogeneous dielectric uniaxial media by casting the problem as ordinary differential equations. These Green's functions feature an apparent singularity on the medium's distinguished axis. Using rigorous mathematical models of the fields, thanks to Schwartz distributions, we show that Green's functions are only singular at the origin. In doing so, we give a practical criterion to determine the singular behavior of derivatives of singular functions. Next, we provide the value of Green's functions along the distinguished axis. Finally, we outline possible generalizations of the approach to homogeneous biaxial media.

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Type
research article
DOI
10.46620/23-0016
Author(s)
Le Boudec, Elias  
Mora, Nicolas
Mosig, Juan  
Rachidi, Farhad  
Rubinstein, Marcos  
Vega, Felix  
Date Issued

2023-05-01

Publisher

International Union of Radio Science (URSI)

Published in
URSI Radio Science Letters
Volume

5

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
SCI-STI-FR  
FunderFunding(s)Grant NumberGrant URL

Technology Innovation Institute

TII/DERC/2254/2021

Available on Infoscience
July 29, 2024
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/240485
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