FDTD method coupled with FFT: a generalization to open cylindrical devices

Author

Navarro, A. ; Nunez, M.J.

Author_Institution

Dept. de Fisica, Murcia Univ., Spain

Volume

42

Issue

5

fYear

1994

fDate

5/1/1994 12:00:00 AM

Firstpage

870

Lastpage

874

Abstract

The extension of a numerical method, based on an FDTD algorithm coupled with FFT, is presented. It can be widely applied to the analysis of axially symmetric passive microwave devices. By incorporating the proper radiation conditions in the algorithm, its capacity to deal with the study of open systems is shown; this allows the determination of its quality factor, as well as the resonant frequency and the spatial distribution of the modes. On the other hand, the proper performance of the technique has been verified (stability of the algorithm, accuracy of results) for modes of high angular dependence

Keywords

Q-factor; circular waveguides; dielectric resonators; fast Fourier transforms; finite difference time-domain analysis; FDTD method; FFT; axially symmetric passive microwave devices; dielectric resonators; high angular dependence modes; numerical method; open cylindrical devices; quality factor; radiation conditions; resonant frequency; spatial distribution; Dielectric devices; Finite difference methods; Mesh generation; Microwave devices; Open systems; Permittivity; Q factor; Resonance; Resonant frequency; Time domain analysis;

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/22.293538

Filename

293538