Effects of surface waves on the currents of truncated periodic arrays

Author

Janning, Dan S. ; Munk, Ben A.

Author_Institution

U.S. Air Force Res. Lab., Anal. Designs Inc., Dayton, OH, USA

Volume

50

Issue

9

fYear

2002

fDate

9/1/2002 12:00:00 AM

Firstpage

1254

Lastpage

1265

Abstract

The behavior of surface waves in truncated periodic arrays is examined through analysis of the currents. The surface waves to be studied are guided by the perfectly conducting elements of the array itself and are to be distinguished from the dielectric slab-guided surface waves encountered elsewhere in the literature. The conditions under which surface waves may arise are given. The surface wave currents are extracted from the method of moments solution for the finite by an infinite array using a least squares algorithm. Surface wave excitation and reflection coefficients are then be determined from the data and compared with the semi-infinite array solution.

Keywords

Fourier analysis; antenna arrays; conducting bodies; electric current; electromagnetic wave reflection; least squares approximations; method of moments; periodic structures; surface electromagnetic waves; Fourier analysis; MoM solution; antenna arrays; dielectric slab-guided surface waves; dipole currents; finite array; infinite array; least squares algorithm; method of moments solution; perfectly conducting elements; periodic structures; reflection coefficients; semi-infinite array; surface wave currents; surface wave excitation; surface waves; truncated periodic arrays; Data mining; Dielectrics; Frequency; Least squares methods; Moment methods; Periodic structures; Reflection; Surface impedance; Surface waves; Two dimensional displays;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/TAP.2002.801378

Filename

1048999