Extension of the 2-D CP-FDTD Thin Slot Algorithm to 3-D for Shielding Analysis
关键词:
Extension of the 2-D CP-FDTD Thin Slot Algorithm to 3-D for Shielding Analysis摘要
The two-dimensional CP-FDTD thin slot algorithm is extended to three-dimensions for the application to shielding analysis in electromagnetic compatibility. The accuracy and the applicability of the 3-D CP-FDTD scheme to the slot width were validated with finer mesh model and capacitive thin-slot formalism (C-TSF). The model taken by the comparison is originated from a thin slot in an enclosure wall. The numerical results indicate that the performance or accuracy will descend with the augment of the slot width. Good agreements with the results of finer mesh modeling can be expected as the slot width is on the order of the mesh dimension, and quite large discrepancies from the results of C-TSF with the slot width far less than mesh dimension. The 3D CP-FDTD algorithm will be utilized when the slot width is comparatively large and otherwise C-TSF will be used. Taking advantage of both of them will avoid finer mesh in thin slots modeling such as the shielding analysis of the electronic enclosure.
##plugins.generic.usageStats.downloads##
参考
H. H. Park and J. W. Lee, “Common-mode current on a wire
through a corrugated aperture,” ETRI Journal, vol. 24, no. 6, pp.
-434, 2002.
C. H. Liang and D. K. Cheng, “Electromagnetic fields coupled into
a cavity with a slot-aperture under resonant conditions,” IEEE Trans.
Antennas Propagat., vol. AP-30, pp. 664-672, July 1982.
Z. Leilei, W. Quandi, Y. Jihui, and G. Qingwen, “A hybrid
method based on FDTD for simulation of far field from opening
in shielding enclosure,” IEEE Trans. magn., vol. 42, pp. 859-862,
April 2006.
M. Li and J. Nuebel, “EMI from cavity modes of shielding
enclosures FDTD modeling and measurements,” IEEE Trans.
Electromagn. Compat., vol. 42, no. 1, pp. 29-37, 2000.
S. T. Mohammed, I. C. George, “A hybrid finite element-analytical
solutions for inhomogeneously filled shielding enclosures,” IEEE
Trans. Electromagn. Compat., vol. 36, no. 4, pp. 380-385, 1994.
M. Li and J. Nuebel, “EMI from airflow aperture arrays in
shielding enclosures-experiments, FDTD, and MoM modeling”
IEEE Trans. Electromagn. Compat., vol. 42, no. 3, pp. 265-275,
C.-T. Wu, Y.-H. Pang, and R.-B. Wu, “An improved formalism for
FDTD analysis of thin-slot problems by conformal mapping
technique,” IEEE Trans. Antennas Propagat., vol. 50, no 9, pp.
-2533, 2003.
J. Gilbert and R. Holland, “Implementation of the thin-slot
formalism in the finite-difference EMP code THREDII,” IEEE
Trans. Nucl. Sci., vol. NS-28, pp. 4269–4274, December 1981.
A. Taflove and K. R. Umashankar, “Detailed FDTD analysis of
electromagnetic fields penetrating narrow slots and lapped joint
in thick conducting screen,” IEEE Trans. Antennas Propagat., vol.
, no 2, pp. 247-257, 1988.
C. D. Turner and L. D. Bacon, “Evaluation of a thin-slot
formalism for finite-difference time-domain electromagnetics
codes,” IEEE Trans. Electromagn. Compat., vol. 30, no. 4, pp. 523-
, 1988