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

fYear

2000

fDate

2000

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Radio Science Conference, 2000. 17th NRSC '2000. Seventeenth National

Conference_Location

Minufiya

Print_ISBN

977-5031-64-8

Type

conf

DOI

10.1109/NRSC.2000.838838

Filename

838838