An improved thin-wire model for FDTD

被引:67
作者
Mäkinen, RM [1 ]
Juntunen, JS
Kivikoski, MA
机构
[1] Tampere Univ Technol, Inst Elect, FIN-33101 Tampere, Finland
[2] Helsinki Univ Technol, Radio Lab, FIN-02015 Helsinki, Finland
关键词
FDTD; sub-cell model; thin-wire model;
D O I
10.1109/22.999136
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 improved thin-wire model for the finite-difference time-domain method is proposed. The new model can be used to accurately model straight wire sections connected to other metal structures. In addition, the model includes the effect of charge accumulation at wire end caps. The end-cap model is based on conservation of charge and Coulomb's law. Using the end-cap model, unconnected wires such as wire antennas are also accurately modeled. The results indicate a significant improvement in predicting the resonance frequency of a dipole antenna.
引用
收藏
页码:1245 / 1255
页数:11
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