A Conformal FDTD Method With Accurate Waveport Excitation and S-Parameter Extraction

被引：12

作者：

Chen, Guanbo ^{[1
]}

Stang, John ^{[1
]}

Moghaddam, Mahta ^{[1
]}

机构：

[1] Univ Southern Calif, Dept Elect Engn Electrophys, Los Angeles, CA 90089 USA

来源：

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION | 2016年 / 64卷 / 10期

关键词：

Conformal finite-difference time domain (CFDTD); finite-difference frequency domain (FDFD); S-parameter; waveport excitation; SIMULATIONS; OBJECTS;

D O I：

10.1109/TAP.2016.2588522

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：

We demonstrate a conformal finite-difference time domain (CFDTD) technique with accurate waveport excitation and S-parameter extraction. We discuss, under the CFDTD framework, object modeling with effective subcell material, impedance calibration for the conformal modeled coaxial feed, waveport mode calculation with a newly developed conformal 2-D finite-difference frequency domain solver, waveport excitation with a modified total field scattered field method, and a modified S-parameter extraction scheme that is compatible with the CFDTD method. Lastly, we present two specific validation cases intended as relevant precursors to the inverse scattering application: modeling of the reflection coefficient of a tapered patch antenna and modeling of the transmission coefficient in a probe-fed rectangular waveguide.

引用

页码：4504 / 4509

页数：6

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