Analysis of planar antennas using unconditionally stable three-dimensional ADI-FDTD method

Author

Yang, Y. ; Chen, R.S. ; Ye, Z.B. ; Wang, D.X.

Author_Institution

Dept. of Commun. Eng., Nanjing Univ. of Sci. & Technol.

Volume

1B

fYear

2005

fDate

2005

Firstpage

170

Abstract

In this article, two kinds of absorbing boundary conditions (ABCs) are jointly employed for the ADI-FDTD algorithm: The Gedney´s uniaxial PML (UPML) scheme is applied in propagation direction and Mur´s first order ABC is set on the other outer surfaces. The manner to apply the source excitation in ADI-FDTD algorithm is described. The numerical simulation of a planar antenna demonstrates the validity of this ADI-FDTD scheme. The results show that the number of iterations with this algorithm can be four times less than that with the conventional FDTD without the large loss of accuracy

Keywords

antenna theory; electromagnetic wave absorption; finite difference time-domain analysis; iterative methods; numerical stability; planar antennas; radiowave propagation; absorbing boundary conditions; planar antennas; propagation direction; three-dimensional ADI-FDTD method; uniaxial PML; Antennas and propagation; Computational modeling; Finite difference methods; Maxwell equations; Numerical simulation; Patch antennas; Planar arrays; Stability; Time domain analysis; Transmission line matrix methods;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium, 2005 IEEE

Conference_Location

Washington, DC

Print_ISBN

0-7803-8883-6

Type

conf

DOI

10.1109/APS.2005.1551512

Filename

1551512