The inverse source problem of electromagnetics: linear inversion formulation and minimum energy solution

We address the inverse source problem of finding the time-harmonic current distribution (source) with minimum L/sup 2/ norm (minimum energy) that generates a prescribed electromagnetic field outside the source's region of support. Using the well-known multipole expansion of the electromagnetic...

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Bibliographic Details
Published inIEEE transactions on antennas and propagation Vol. 47; no. 2; pp. 410 - 412
Main Authors Marengo, E.A., Devaney, A.J.
Format Journal Article
LanguageEnglish
Published IEEE 01.02.1999
Subjects
Antennas
Current distribution
Distributed computing
Electromagnetic fields
Electromagnetic forces
Electromagnetic scattering
Energy of formation
Formalism
Inverse
Inversions
Linear operators
Magnetic fields
Maxwell equations
Norms
Permeability
Permittivity
Vectors
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Summary:We address the inverse source problem of finding the time-harmonic current distribution (source) with minimum L/sup 2/ norm (minimum energy) that generates a prescribed electromagnetic field outside the source's region of support. Using the well-known multipole expansion of the electromagnetic field we compute (via a linear operator formalism) the sought-after minimum L/sup 2/ norm-current distribution consistent with the data.
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ISSN:0018-926X
1558-2221
DOI:10.1109/8.761085