A Hybrid Implicit-Explicit and Conformal (HIE/C) FDTD Method for Efficient Electromagnetic Simulation of Nonorthogonally Aligned Thin Structures

被引:11
|
作者
Muraoka, Hideaki [1 ]
Inoue, Yuta [2 ]
Sekine, Tadatoshi [2 ]
Asai, Hideki [2 ]
机构
[1] Shizuoka Univ, Grad Sch Engn, Dept Syst Engn, Hamamatsu, Shizuoka 4328561, Japan
[2] Shizuoka Univ, Dept Syst Engn, Hamamatsu, Shizuoka 4328561, Japan
关键词
Conformal finite-difference time-domain (CFDTD) method; finite-difference time-domain (FDTD) method; hybrid implicit-explicit finite-difference time-domain (HIE-FDTD) method; subcell; PERFECTLY CONDUCTING OBJECTS; SELECTIVE VALIDATION FSV; MAXWELLS EQUATIONS; NUMERICAL-SOLUTION; STABILITY; ALGORITHM; SCHEME; CEM;
D O I
10.1109/TEMC.2013.2273852
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
In a conventional finite-difference time-domain (FDTD) method, the computational cost increases as a grid spacing decreases because the number of unknowns increases and a time step size decreases to fulfill a numerical stability condition. Especially, it is inherently time-consuming to analyze thin structures such as a printed circuit board (PCB) and nonorthogonally aligned objects such as interconnection patterns on the PCB. In this paper, we propose an efficient electromagnetic simulation technique which is constructed by combining a hybrid implicit-explicit (HIE)-FDTD method and a conformal FDTD (CFDTD) method. The proposed technique can avoid the aforementioned problems by exploiting advantages of the HIE-FDTD and CFDTD methods. An example model of the interconnection pattern on the PCB is analyzed by the proposed and conventional methods, and we compare their accuracy and efficiency.
引用
收藏
页码:505 / 512
页数:8
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