Scattering of electromagnetic fields by a moving boundary: The one-dimensional case

Author

Cooper, Jeffery

Author_Institution

University of Maryland, College Park, MD, USA

Volume

28

Issue

6

fYear

1980

fDate

11/1/1980 12:00:00 AM

Firstpage

791

Lastpage

795

Abstract

The scattered field is studied that results when a plane wave is normally incident on a perfectly conducting flat plate in motion. The exact solution is analyzed for both periodic and aperiodic motion. The quasi-stationary approximation is compared with the exact solution, and the error is found to be on the order of $\\beta = \\upsilon _{M}c^{-1}$ where $\\upsilon _{M}$ is the maximum speed of the moving boundary and $c$ is the speed of light. This error estimate includes a factor which increases as the distance from the plate increases. A uniform quasi-stationary approximation is developed which has an error on the order of $\\beta$ independent of the space variable. By taking into account the Doppler shift, it is possible to construct a uniform approximation to the exact solution on the order of $a_{M}c^{-2}$ where $a_{M}$ is the maximum acceleration of the boundary.

Keywords

Electromagnetic scattering by moving surfaces; Plates; Acceleration; Boundary conditions; Doppler shift; Electromagnetic fields; Electromagnetic scattering; Frequency; Light scattering; Motion analysis; Optical reflection; Radar scattering;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/TAP.1980.1142445

Filename

1142445