Magnetostatic microwaves in circular dielectric waveguide with anisotropic uniaxial μ-negative media

The quasi-magnetostatic (briefly, magnetostatic) microwaves propagation in a long, circular cross-section waveguide made of an anisotropic uniaxial μ -negative medium (here, a metamaterial consisting of split-ring resonators) is studied by using the quasi-static Maxwell’s equations. Such waves do no...

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Bibliographic Details
Published in:Applied physics. A, Materials science & processing Materials science & processing, 2023-03, Vol.129 (3), Article 178
Main Authors: Moradi, Afshin, Tokan, Nurhan Türker
Format: Article
Language:English
Subjects:
Applied physics
Characterization and Evaluation of Materials
Condensed Matter Physics
Dielectric waveguides
Laplace equation
Machines
Magnetic properties
Manufacturing
Materials science
Metamaterials
Microwaves
Nanotechnology
Optical and Electronic Materials
Physics
Physics and Astronomy
Power flow
Processes
Surfaces and Interfaces
Thin Films
Wave propagation
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Summary:The quasi-magnetostatic (briefly, magnetostatic) microwaves propagation in a long, circular cross-section waveguide made of an anisotropic uniaxial μ -negative medium (here, a metamaterial consisting of split-ring resonators) is studied by using the quasi-static Maxwell’s equations. Such waves do not exist in a circular dielectric waveguide made of an isotropic μ -negative medium. A Laplace equation for the magnetostatic potential of the system is obtained and solved. We derive the dispersion relation for the modes and present numerical solutions. Also, general expressions are derived and illustrated graphically for the power flow and the energy density of the different magnetostatic modes. Physically, these magnetostatic waves owe their existence to the anisotropic property of the system, where in the absence of this property, they disappear.
ISSN:0947-8396
1432-0630
DOI:10.1007/s00339-023-06409-3