Matched waves and unexpected resonances: Variety of boundary conditions

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Journal Title

Journal ISSN

Volume Title

A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

Date

2019-09-01

Major/Subject

Mcode

Degree programme

Language

en

Pages

11
34-44

Series

The Radio Science Bulletin, Volume 2019, issue 370

Abstract

This article discusses certain interesting findings about phenomena that take place when electromagnetic fields interact with a surface on which given boundary conditions are enforced. In particular, the concept of matched waves is analyzed and illustrated. Furthermore, observations are made on resonance spectra that may accompany sub-wavelength scatterers with an isotropic impedance boundary condition. This invited article, reviewing some of our studies on boundary conditions during the past decades, is based on the Commission B (Fields and Waves) keynote presentation of the 2019 URSI Asia-Pacific Radio Science Conference held in New Delhi, India, March 9-15, 2019.

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Keywords

Boundary conditions, Surface impedance, Impedance, Magnetic separation, Magnetic domains, Electromagnetics, Magnetic resonance imaging

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Citation

Sihvola, A & Lindell, I V 2019, ' Matched waves and unexpected resonances: Variety of boundary conditions ', The Radio Science Bulletin, vol. 2019, no. 370, 8956142, pp. 34-44 . https://doi.org/10.23919/URSIRSB.2019.8956142