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Electromagnetic Scattering by a Moving Conducting Sphere
Author(s) -
Restrick Robert C.
Publication year - 1968
Publication title -
radio science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.371
H-Index - 84
eISSN - 1944-799X
pISSN - 0048-6604
DOI - 10.1002/rds19683121144
Subject(s) - scattering , physics , electromagnetic field , codes for electromagnetic scattering by spheres , plane (geometry) , plane wave , electromagnetic radiation , cross section (physics) , field (mathematics) , near and far field , classical mechanics , constant (computer programming) , computational physics , optics , light scattering , geometry , mie scattering , mathematics , quantum mechanics , computer science , pure mathematics , programming language
A relativistically correct expression for the far zone electromagnetic field scattered by a perfectly conducting sphere, moving with constant velocity, through an incident plane wave is developed. It is seen that if the scattered field is expressed in a special “retarded” coordinate system, a result that is more tractible, allowing physical interpretation, is obtained. When the field is expressed in this way, the expected first‐order effects are manifest, yet the higher order effects are also present. This solution may be directly applied to the finite bodies with more complicated shapes than the sphere. For the case of the sphere it is found that the form of the scattered field allows the calculation of the scattering cross section, the total scattering cross section, and the rate of exchange of electromagnetic and mechanical energies.