Title :
Analysis of cavity backed rectangular patch antennas with inhomogeneous chiral substrates via a FEM-BEM formulation
Author :
Vegni, Lucio ; Bilotti, Filiberto ; Toscano, Alessandro
Author_Institution :
Dept. of Electron. Eng., Rome Univ., Italy
fDate :
9/1/2001 12:00:00 AM
Abstract :
In this paper we present the analysis of cavity backed rectangular patch antennas with inhomogeneous chiral substrates. A variational formulation for the cavity antenna problem is firstly carried out and a Finite Element Method-Boundary Element Method (FEM-BEM) numerical technique is, then, applied in order to calculate both the radiation and the scattering properties of such antennas. The effects of the chirality and of the inhomogeneity are both pointed out through the numerical results presented
Keywords :
antenna theory; boundary-elements methods; chirality; finite element analysis; inhomogeneous media; microstrip antennas; substrates; variational techniques; FEM-BEM formulation; FEM-BEM numerical technique; boundary element method; cavity backed rectangular patch antennas; finite element method; inhomogeneous chiral substrates; radiation properties; scattering properties; variational formulation; Dielectric materials; Dielectric substrates; Electromagnetic scattering; Magnetic materials; Maxwell equations; Microstrip antennas; Nonuniform electric fields; Optical materials; Optical scattering; Patch antennas;
Journal_Title :
Magnetics, IEEE Transactions on
