Title :
Modeling of general 1-D periodic leaky-wave antennas in layered media using EIGER™
Author :
Johnson, W.A. ; Paulotto, S. ; Jackson, D.R. ; Wilton, D.R. ; Langston, W.L. ; Basilio, L.I. ; Baccarelli, P. ; Valerio, G. ; Celepcikay, F.T.
Author_Institution :
Sandia Nat. Labs., Albuquerque, NM, USA
Abstract :
This paper presents a mixed-potential integral-equation formulation for analyzing 1-D periodic leaky-wave antennas in layered media. The structures are periodic in one dimension and finite in the other two dimensions. The unit cell consists of an arbitrary-shaped metallic/dielectric structure. The formulation has been implemented in the EIGER™ code in order to obtain the real and complex propagation wavenumbers of the bound and leaky modes of such structures. Validation results presented here include a 1-D periodic planar leaky-wave antenna and a fully 3-D waveguide test case.
Keywords :
integral equations; leaky wave antennas; periodic structures; EIGER code; arbitrary-shaped metallic/dielectric structure; bound modes; fully 3D waveguide test case; general 1D periodic leaky-wave antennas; layered media; leaky modes; mixed-potential integral-equation formulation; periodic structures; propagation wavenumbers; unit cell; Dispersion; Green´s function methods; Interpolation; Leaky wave antennas; Mathematical model; Nonhomogeneous media; Periodic structures;
Conference_Titel :
Electromagnetics in Advanced Applications (ICEAA), 2010 International Conference on
Conference_Location :
Sydney, NSW
Print_ISBN :
978-1-4244-7366-3
DOI :
10.1109/ICEAA.2010.5652952
