DESIGN OF EXCITATION SOURCE IN COMPUTING CUTOFF FREQUENCIES OF WAVE-GUIDES BY 2D-FDTD METHOD

Authors
ZHOU XJ YU ZY LIN WG LI YM
Citation
Xj. Zhou et al., DESIGN OF EXCITATION SOURCE IN COMPUTING CUTOFF FREQUENCIES OF WAVE-GUIDES BY 2D-FDTD METHOD, Hongwai yu haomibo xuebao, 17(3), 1998, pp. 236-240
Citations number
4
Categorie Soggetti
Optics
Journal title
Hongwai yu haomibo xuebao → ACNP
ISSN journal
10019014
Volume
17
Issue
3
Year of publication
1998
Pages
236 - 240
Database
ISI
SICI code
1001-9014(1998)17:3<236:DOESIC>2.0.ZU;2-W
Abstract
The excitation must match with the mode patterns when computing cut-of f frequencies of waveguides by 2D-FDTD method. This paper analyzed the exciting effect of electric sheet sources, filament sources and point sources and gave the design method of excitation in rectangular waveg uides for computing cut-off frequencies by 2D-FDTD. By this method all of the cut-off frequencies of lower order modes can be found.