Efficient non-uniform orthogonal mesh generation algorithm for cylindrical FDTD applications
The paper presents an efficient non-uniform, orthogonal mesh generation algorithm for the analysis and design of cylindrical microwave devices and integrated circuits using the cylindrical finite-difference time-domain (CFDTD) methods. By using this algorithm, we can easily generate a suitable CFDTD grid which is fitting for the developed CFDTD Maxwell's solver.
AutoMesh: an automatically adjustable, nonuniform, orthogonal FDTD mesh generator
In this article, we introduce a three-dimensional, automatically adjustable, non-uniform orthogonal-mesh generator, AutoMesh, developed using a Windows application-development package, Microsoft Visual Basic. The developed mesh-generating package can efficiently produce geometrical and material data files for a complex electromagnetic configuration that serve as inputs to a generalized non-uniform finite-difference time-domain (FDTD) Maxwell's equations solver. In addition, the fruitful graphical functions of the package insure not only the accuracy of the generated data files, but also the ease of mesh generation for complex objects. Herein, we first present the algorithm of mesh generation, and then illustrate graphical features of the package.
Characteristic impedance of a tubular dielectric cylinder covered with conducting arc strips
The characteristic impedance of a circular cylindrical dielectric tubular transmission line that is partially covered by thin conducting arc strips on the outer periphery is determined by conformal transformation. The characteristic impedance is determined by first transforming the geometry to an equivalent planar geometry. The variation of the characteristic impedance with the physical parameters is studied, and some numerical results are presented. >