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Reciprocity, Spatial Mapping and Time Reversal in Electromagnetics

Reciprocity, Spatial Mapping and Time Reversal in Electromagnetics

Paperback

Technology & EngineeringPhysics

ISBN10: 9400795289
ISBN13: 9789400795280
Publisher: Springer Nature
Published: Oct 16 2014
Pages: 317
Weight: 1.05
Height: 0.71 Width: 6.14 Depth: 9.21
Language: English

This long awaited second edition traces the original developments from the 1970s and brings them up to date with new and previously unpublished material to give this work a new lease of life for the early twenty-first century and readers new to the topic.

In the winter of 1970-71, Colman Altman had been finding almost exact symmetries in the computed reflection and transmission matrices for plane-stratified magnetoplasmas when symmetrically related directions of incidence were compared. At the suggestion of Kurt Suchy the complex conjugate wave fields, used to construct the eigenmode amplitudes via the mean Poynting flux densities, were replaced by the adjoint wave fields that would propagate in a medium with transposed constitutive tensors, to yield a scattering theorem - reciprocity in k-space -- in the computer output. To prove the result analytically, one had to investigate the properties of the adjoint Maxwell system, and the two independent proofs that followed, in 1975 and 1979, proceeded according to the personal preference of each of the authors. The proof given in this volume, based on the hindsight provided by later results, is much more simple and concise.

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