Ap. Zhao et al., An efficient FDTD algorithm for the analysis of microstrip patch antennas printed on a general anisotropic dielectric substrate, IEEE MICR T, 47(7), 1999, pp. 1142-1146
Citations number
20
Categorie Soggetti
Eletrical & Eletronics Engineeing
Journal title
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES
In this paper, an efficient three-dimensional finite-difference time-domain
(FDTD) approach based on the D-, E-, and I-I-fields is proposed to handle
arbitrary anisotropic dielectric media; and, particularly, the way of impos
ing the electric-wall boundary condition on the surface of perfect electric
conductors is discussed in details, By combining the proposed FDTD approac
h with the material-independent perfectly matched-layer absorbers, the perf
ormance of a line-fed microstrip patch antenna deposited on general anisotr
opic dielectric substrate is investigated. The scattering parameters of the
antenna as a function of the rotation angle of the optical axis of the ani
sotropic substrate are presented for the first time. Numerical results demo
nstrate how the resonant frequencies of the antenna are influenced by the a
nisotropy.