Radiation from a dipole in the presence of a grounded gyromagnetic slab
- 1 November 1982
- journal article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 53 (11) , 7149-7161
- https://doi.org/10.1063/1.331610
Abstract
Radiation from dipoles in the presence of a grounded gyromagnetic slab is considered. The Green’s function for an arbitrarily oriented elementary dipole source is derived first, assuming that the static magnetic field applied to the gyromagnetic slab is either vertical or parallel to the slab surface. A plane-wave Fourier representation is employed to expand the field in and out of the slab. Several symmetry relations are exploited to reduce the complexity of the solution. Radiation properties of the grounded slab, such as the surface wave launching and the far-field behavior, are then investigated. It is shown that the far-field amplitude and phase can be controlled by varying the external static magnetic field. Numerical results are presented for several cases.This publication has 8 references indexed in Scilit:
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