Hybrid mode analysis of microstrip lines by the method of lines with pseudospectral discretization

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Original languageEnglish
Pages (from-to)224-227
Journal / PublicationMicrowave and Optical Technology Letters
Issue number3
Publication statusPublished - 5 Nov 2002


In this paper, the method of lines (MoLs), which has been proved to be very efficient for calculating the characteristics of one-dimensional and two-dimensional planar microwave structures, is extended to nonequidistant discretization with pseudospectral technique. This pseudospectral MoLs is developed by combining pseudospectral technique and the MoLs; so that its solution is not only analytical along line direction, but also maintains high accuracy in discrete direction. A pseudospectral-based discretization strategy, distribution of collocation nodes, global power series interpolation of differential quadrature, second-order difference matrix, and decoupling of coupled ordinary differential equations are discussed in detail. The convergence behaviors are provided for line discretization, based on both the pseudospectral strategy and the second-order finite difference (FD), respectively. The calculated results are compared with those published in the previous literature and our numerical results show that accuracy is improved with reduced computational effort for the analysis of microstrip lines. © 2002 Wiley Periodicals, Inc. Microwave Opt Technol Lett 35.

Research Area(s)

  • Hybrid mode, Method of lines, Microstrip line, Pseudospectral technique