Abstract
AbstractA 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
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