Title :
Analysis of cylindrical transmission lines with the finite-difference time-domain method
Author :
Dib, Nihad ; Weller, Thomas ; Scardelletti, Max ; Imparato, Michael
Author_Institution :
Dept. of Electr. Eng., Jordan Univ. of Sci. & Technol., Irbid, Jordan
fDate :
4/1/1999 12:00:00 AM
Abstract :
In this paper, the finite-difference time-domain (FDTD) method is used to calculate the propagation characteristics of cylindrical transmission lines. An efficient two-dimensional FDTD algorithm is developed by projecting the three-dimensional FDTD cell in the cylindrical coordinates onto the r-φ plane. An effective absorbing boundary condition is employed to truncate the mesh at its outer radial boundary. Numerical results are derived for different cylindrical transmission lines and compared to data available in the literature. Specifically, the newly proposed cylindrical coplanar waveguide is studied both theoretically and experimentally
Keywords :
circular waveguides; coplanar waveguides; finite difference time-domain analysis; waveguide theory; absorbing boundary condition; cylindrical coordinates; cylindrical coplanar waveguide; cylindrical transmission lines; finite-difference time-domain method; outer radial boundary; propagation characteristics; two-dimensional FDTD algorithm; Coplanar waveguides; Finite difference methods; Gallium arsenide; MMICs; Microwave devices; Millimeter wave technology; Schottky diodes; Time domain analysis; Transmission line theory; Transmission lines;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
