Accession Number:

AD0731180

Title:

Modification of EM Scattering from a Thick Cylinder by Multi-Slot Impedance Loading,

Descriptive Note:

Corporate Author:

MICHIGAN STATE UNIV EAST LANSING DIV OF ENGINEERING RESEARCH

Personal Author(s):

Report Date:

1971-07-01

Pagination or Media Count:

121.0

Abstract:

The modification and control of the scattering of a plane electromagnetic wave by a thick, conducting, infinitely long cylinder loaded with several impedance-backed longitudinal slots is investigated. The incident plane wave is polarized with its electric field vector perpendicular to the cylinder axis. The slots are electrically narrow and the electric fields across them are assumed to be constant. Within this assumption an exact theory is developed. Synthesis procedures are developed to find load impedances and purely reactive load impedances that cause the scattered field to vanish in one or more desired directions. Synthesis procedures are also developed for finding a single purely reactive load impedance that produces minimum scattering in one direction and load impedances which result in zero scattering in one direction at several frequencies. The frequency dependence and bandwidths of the different loadings are also considered. Extensive numerical results are presented. The theoretical predictions are confirmed with an experiment. Author

Subject Categories:

  • Radiofrequency Wave Propagation

Distribution Statement:

APPROVED FOR PUBLIC RELEASE