An Elliptical Cylindrical FDTD Algorithm for Modeling Conformal Patch Antenna

被引：11

作者：

Naser-Moghaddasi, Mohammad ^{[1
]}

Sadeghzadeh, Ramezan Ali ^{[2
]}

Ghiamy, Mohammad ^{[3
]}

Neyestanak, Abbas Ali Lotfi ^{[4
]}

Virdee, Bal S. ^{[5
]}

机构：

[1] Islamic Azad Univ, Fac Engn, Sci & Res Branch, Tehran, Iran

[2] Khajeh Nasir Toosi Univ Technol, Dept Elect Engn, Tehran, Iran

[3] Islamic Azad Univ, Dept Engn, Sci & Res Branch, Tehran, Iran

[4] Islamic Azad Univ, Shahre Rey Branch, Dept Elect Engn, Tehran, Iran

[5] London Metropolitan Univ, Fac Comp, Ctr Commun Technol, London, England

来源：

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION | 2010年 / 58卷 / 12期

关键词：

Absorbing boundary condition; conformal patch antenna; Courant condition; finite-difference time-domain (FDTD); ABSORBING BOUNDARY-CONDITIONS;

D O I：

10.1109/TAP.2010.2078450

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

An explicit finite-difference time-domain (FDTD) method is described using a uniform elliptical cylindrical spatial grid for time-domain Maxwell's equations to accurately and efficiently model conformal elliptical cylindrical line-fed patch antennas and overcome stair-casing errors. Such errors are encountered when a Cartesian spatial grid is used for modeling curved surfaces. In addition, the method described in this paper obviates coding complexity encountered in modeling of curved surfaces which is manifest using CP-FDTD or CFDTD techniques. Characterizing expressions representing the absorbing boundary condition and Courant stability condition are presented and used to provide a highly effective algorithm to simulate conformal microstrip antennas. The proposed FDTD algorithm is validated against HFSS results showing excellent correlation.

引用

页码：3990 / 3996

页数：7

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