Title :
A field picture of wave propagation in inhomogeneous dielectric lenses
Author :
Greenwood, Andrew D. ; Jin, Jian-Ming
Author_Institution :
Air Force Res. Lab., Kirtland AFB, NM, USA
fDate :
10/1/1999 12:00:00 AM
Abstract :
This article presents the radiation and scattering patterns, and the interior field distributions, of three inhomogeneous dielectric lenses: the Luneburg (1944), Maxwell fish-eye (1860), and Eaton-Lippmann (1952) lenses. The purpose is to provide a picture of wave propagation through these lenses. A better understanding of the field picture, especially the nature of the focal points, is helpful to the practical design of the lenses
Keywords :
dielectric devices; electromagnetic wave propagation; electromagnetic wave scattering; finite element analysis; geometrical optics; inhomogeneous media; lenses; Eaton-Lippmann lens; Luneburg lens; Maxwell fish-eye lens; electromagnetic theory; field picture; finite element method; focal points; geometrical optics; inhomogeneous dielectric lenses; interior field distributions; practical design; radiation patterns; scattering patterns; wave propagation; Dielectrics; Electromagnetic propagation; Electromagnetic radiation; Electromagnetic scattering; Finite element methods; Lenses; Nonuniform electric fields; Optical design; Optical scattering; Radar scattering;
Journal_Title :
Antennas and Propagation Magazine, IEEE
