Exact Image Method for Radiation Problems in Stratified Isorefractive Tellegen Media

We develop a generalized image method to solve radiation problems in nonreciprocal stratified Tellegen media. It is shown that the electromagnetic fields emitted by elementary sources have exact analytical expressions in case of isorefractive structures. Namely, we prove that the fields radiated by...

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Bibliographic Details
Published in:IEEE transactions on antennas and propagation 2014-09, Vol.62 (9), p.4637-4646
Main Authors: Prudencio, Filipa R., Matos, Seargio A., Paiva, Carlos R.
Format: Article
Language:English
Subjects:
Antennas
Electric dipoles
Electromagnetic fields
Exact solutions
Image theory
isorefractive media
Magnetic moments
Magnetic resonance imaging
Magnetoelectric effects
Mathematical analysis
Media
nonreciprocal media
Reflection
Slabs
Tellegen media
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Summary:We develop a generalized image method to solve radiation problems in nonreciprocal stratified Tellegen media. It is shown that the electromagnetic fields emitted by elementary sources have exact analytical expressions in case of isorefractive structures. Namely, we prove that the fields radiated by an electric dipole in the vicinity of a nonreciprocal Tellegen slab can be written as the superposition of the fields radiated by a set of infinite virtual dipoles. We outline some possible applications of our theory and show that the Tellegen slab allows tailoring the polarization state of the radiated fields.
ISSN:0018-926X
1558-2221
DOI:10.1109/TAP.2014.2330873