
Accession Number : AD0018292
Title : SCATTERING OF PLANE ELECTROMAGNETIC RADIATION BY AN INFINITE CYLINDRICAL MIRROR
Corporate Author : HARVARD UNIV CAMBRIDGE MASS CRUFT LAB
Personal Author(s) : TURNER,ROBERT D.
Report Date : 15 MAY 1953
Pagination or Media Count : 1
Abstract : A variational principle was used in conjunction with a trial function for the surfacecurrent density to obtain expressions for the farzone field and scattering cross section of a cylindrical mirror excited by a plane wave. The trial function consisted of a linear combination of the optical and quasistatic current distributions so that the derived expressions are valid over a wide range of frequencies. The plane wave was assumed to be polarized so that (1) the electric vector paralled the mirror axis and (2) the formation was reduced to a 2dimensional scalar problem. The method was considered applicable to the evaluation of the properties of a large class of diffracting obstacles.
Descriptors : CYLINDRICAL BODIES, DISTRIBUTION, FREQUENCY, FUNCTIONS, MIRRORS, OPTICAL PROPERTIES, PLANE WAVES, RANGE(EXTREMES), SCATTERING CROSS SECTIONS, STATICS, VARIATIONAL PRINCIPLES.
Distribution Statement : APPROVED FOR PUBLIC RELEASE