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

Volume

47

Issue

4

fYear

1999

fDate

4/1/1999 12:00:00 AM

Firstpage

509

Lastpage

512

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;

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/22.754886

Filename

754886