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  4. Robustness in Subwavelength Locally-Resonant Metamaterial Waveguides
 
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conference paper

Robustness in Subwavelength Locally-Resonant Metamaterial Waveguides

Orazbayev, Bakhtiyar  
•
Kaïna, Nadège Sihame  
•
Fleury, Romain  
July 8, 2020
2020 14th European Conference on Antennas and Propagation (EuCAP)
2020 14th European Conference on Antennas and Propagation (EuCAP)

Guiding electromagnetic energy at a subwavelength scale is one of the most highly demanded functionalities in a variety of applications, including compact, lightweight satellite communications, signal and data processing, and power systems. The existing schemes for subwavelength waveguiding, including topological designs, are usually based on the use of locally resonant metamaterials and generally sensitive to the lattice imperfections and disorder-induced backscattering. We quantitatively assess here the robustness of subwavelength edge modes in different waveguide designs, including designs based on C6 symmetry or valley-Hall (VH) topological insulators (TI) and non-topological designs based on chirality or a frequency defect line. The statistical results demonstrate that all waveguiding schemes provide a different level of robustness of the edge modes for different types of disorder and superior robustness of VH and chiral metamaterial waveguides to all three types of disorder.

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Type
conference paper
DOI
10.23919/EuCAP48036.2020.9135562
Author(s)
Orazbayev, Bakhtiyar  
•
Kaïna, Nadège Sihame  
•
Fleury, Romain  
Date Issued

2020-07-08

Publisher

IEEE

Journal
2020 14th European Conference on Antennas and Propagation (EuCAP)
ISBN of the book

978-88-31299-00-8

978-1-7281-3712-4

Start page

1

End page

4

Subjects

metamaterials

•

waveguides

•

microwaves

•

robustness

Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
LWE  
Event nameEvent placeEvent date
2020 14th European Conference on Antennas and Propagation (EuCAP)

Copenhagen, Denmark

March 15-20, 2020

Available on Infoscience
August 18, 2020
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/170910
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