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Toroidal dipole excitation in cylindrically arranged dogbone metallic inclusions

Published online by Cambridge University Press:  07 January 2021

V. P. Sarin Open the ORCID record for V. P. Sarin [Opens in a new window] ,
P. V. Vinesh ,
M. Manoj ,
C. K. Aanandan ,
P. Mohanan  and
K. Vasudevan
V. P. Sarin*
Affiliation:
Department of Electronics, Government College Chittur, Palakkad, Kerala, India
P. V. Vinesh
Affiliation:
Department of Electronics, Government College Chittur, Palakkad, Kerala, India Centre for Research in Electromagnetics and Antennas, Cochin University of Science and Technology, Kochi, Kerala, India
M. Manoj
Affiliation:
Centre for Research in Electromagnetics and Antennas, Cochin University of Science and Technology, Kochi, Kerala, India
C. K. Aanandan
Affiliation:
Centre for Research in Electromagnetics and Antennas, Cochin University of Science and Technology, Kochi, Kerala, India
P. Mohanan
Affiliation:
Centre for Research in Electromagnetics and Antennas, Cochin University of Science and Technology, Kochi, Kerala, India
K. Vasudevan
Affiliation:
Centre for Research in Electromagnetics and Antennas, Cochin University of Science and Technology, Kochi, Kerala, India
*
Author for correspondence: V. P. Sarin, E-mail: sarincrema@gmail.com
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Abstract

A significant excitation of toroidal moments in cylindrically arranged dogbone metallic inclusions is validated and presented in this paper. The antiparallel poloidal currents excited on the front and back faces of the proposed cylindrical dogbone inclusions create strong magnetic field confinement at the center generating intense toroidal moments on the structure. The significant excitation of toroidal dipole moment causes an improvement in the scattering cross-section from the resonant system. The resonant mechanism is analyzed using the multipole scattering theory, and we used the scattering measurement techniques to characterize the structure experimentally in the microwave regime.

Keywords

Toroidal dipolesMultipole scatteringForward scattering
Type
Metamaterials and Photonic Bandgap Structures
Information
International Journal of Microwave and Wireless Technologies , Volume 13 , Issue 10 , December 2021 , pp. 1025 - 1030
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Copyright
Copyright © The Author(s), 2021. Published by Cambridge University Press in association with the European Microwave Association

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