Title :
Edge effects of truncated periodic surfaces of thin wire elements
Author :
Usoff, Joseph M. ; Munk, Benedikt A.
Author_Institution :
MIT, Cambridge, MA, USA
fDate :
7/1/1994 12:00:00 AM
Abstract :
The effects of truncating a periodic structure of thin wire elements is examined. The structure is assumed to be infinite in extent along a single axis, enabling the analysis to be simplified via Floquet´s currents on the infinite axis for plane wave incidence. The analysis of an infinite linear array of elements is thereby reduced to that of a single element. Scattered fields are presented for several truncated planar geometries and are compared to three approximate solutions that use unperturbed two-dimensionally infinite Floquet currents, diffraction from a strip, and a physical optics solution for a strip, respectively
Keywords :
antenna radiation patterns; antenna theory; dipole antennas; electromagnetic wave scattering; Floquet´s currents; approximate solutions; diffraction; dipole arrays; edge effects; frequency selective surfaces; infinite linear array; periodic structure; physical optics; plane wave incidence; scattered fields; strip; thin wire elements; truncated periodic surfaces; truncated planar geometries; Capacitive sensors; Frequency; Geometrical optics; Optical diffraction; Optical scattering; Optical surface waves; Periodic structures; Physical optics; Surface treatment; Wire;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
