论文信息 - A modified locally conformal FDTD for broadwall radiating slot in a finite wall thickness waveguide

A modified locally conformal FDTD for broadwall radiating slot in a finite wall thickness waveguide

A modified locally conformal finite-difference time-domain method (MLC-FDTD) is presented in this paper, which is used to analyze broadwall radiating slots in a finite wall thickness waveguide, including the longitudinal slot and the inclined slot. In this paper, we make a direct analysis of the bulletheaded slots using MLC-FDTD, and give the transformation errors of two kinds of equivalent methods frequently employed in the engineering design; the equal-area and the equal-perimeter transformations from the squareheaded slot to bulletheaded slot. The results show that the equal-area transformation is more accurate. © 2002 Wiley Periodicals, Inc. Microwave Opt Technol Lett 35: 198–201, 2002; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.10556

[1] Raj Mittra,et al. A conformal FDTD algorithm for modeling perfectly conducting objects with curve‐shaped surfaces and edges , 2000 .

[2] A. Cangellaris,et al. Analysis of the numerical error caused by the stair-stepped approximation of a conducting boundary in FDTD simulations of electromagnetic phenomena , 1991 .

[3] Raj Mittra,et al. Modeling three-dimensional discontinuities in waveguides using nonorthogonal FDTD algorithm , 1992 .

[4] Bernard Jecko,et al. DESIGN OF A NEW PHOTONIC COVER TO INCREASE ANTENNA DIRECTIVITY , 1999 .

[5] R. Mittra,et al. A locally conformal finite-difference time-domain (FDTD) algorithm for modeling three-dimensional perfectly conducting objects , 1997 .

[6] Allen Taflove,et al. Three-dimensional contour FDTD modeling of scattering from single and multiple bodies , 1993 .