Title :
FDTD analysis of patch antenna over a multi-layer substrate
Author :
Mahmoud, Ahmed N. ; Elrazzak, Maher M Abd ; Elmikati, Hamdi A.
Author_Institution :
Fac. of Eng., Mansoura Univ., Egypt
Abstract :
In this paper, rectangular microstrip patch antenna over a multi-layer substrate configuration is presented. This patch antenna configuration improves the bandwidth and the radiation pattern of the patch. The finite-difference time-domain (FDTD) method with perfectly matched layer absorber (PML) as well as Mur´s (1981) first order absorbing boundary conditions (Mur´s FOC) is applied to determine the return loss, the effective dielectric constant, the input impedance and the radiation pattern of the proposed structure. In addition, the effect of changing the air gap layer thickness of that antenna is studied. The results obtained by the FDTD with PML are found to be in better agreement with the published measured data than those obtained by the FDTD with Mur´s FOC
Keywords :
antenna radiation patterns; electric impedance; finite difference time-domain analysis; microstrip antennas; permittivity; FDTD analysis; FDTD method; Mur´s first order absorbing boundary conditions; air gap layer thickness; bandwidth; effective dielectric constant; finite-difference time-domain; input impedance; measured data; multi-layer substrate; multi-layer substrate configuration; patch antenna configuration; perfectly matched layer absorber; radiation pattern; rectangular microstrip patch antenna; return loss; Antenna radiation patterns; Bandwidth; Boundary conditions; Dielectric losses; Dielectric substrates; Finite difference methods; Microstrip antennas; Patch antennas; Perfectly matched layers; Time domain analysis;
Conference_Titel :
Radio Science Conference, 2000. 17th NRSC '2000. Seventeenth National
Conference_Location :
Minufiya
Print_ISBN :
977-5031-64-8
DOI :
10.1109/NRSC.2000.838838
