Title :
The effect of substrate dispersion on the operation of square microstrip antennas
Author :
Prokopidis, Konstantinos P. ; Tsiboukis, Theodoros D.
Author_Institution :
Dept. of Electr. & Comput. Eng., Aristotle Univ. of Thessaloniki
fDate :
4/1/2006 12:00:00 AM
Abstract :
The effect of dispersive substrates upon the operation of microstrip antennas is evaluated with a simple and efficient finite-difference time-domain technique. Two single-feed corner-truncated patches with Debye-modeled substrates are simulated; the reflection coefficient and the input impedance are calculated and compared with the lossless case demonstrating that mainly the input impedance and slightly the resonant frequencies are influenced. An unsplit perfectly matched layer is also proposed for the termination of computational domains with dispersive media
Keywords :
dispersion (wave); finite difference time-domain analysis; microstrip antennas; Debye-modeled substrates; FDTD method; PML; computational domains; corner-truncated patches; dispersive media; finite-difference time-domain technique; microstrip antennas; perfectly matched layer; single-feed patches; square antennas; substrate dispersion effect; Antennas and propagation; Dielectric substrates; Dispersion; Finite difference methods; Impedance; Microstrip antenna arrays; Microstrip antennas; Perfectly matched layers; Permittivity; Time domain analysis; Dispersive media; finite-difference time-domain (FDTD) method; microstrip antennas; perfectly matched layers (PML);
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2006.871647
