Transmission filtering of a waveguide coupled to a stub microresonator

Using a finite difference time domain method, the authors study the electromagnetic transmission coefficient of a microwaveguide coupled to a lateral stub. It is shown that if the stub is covered with a thin metallic layer, the transmission spectrum contains several very narrow and deep depressions...

Full description

Saved in:
Bibliographic Details
Published in:Applied physics letters 2006-09, Vol.89 (10), p.101113-101113-3
Main Authors: Pennec, Y., Djafari-Rouhani, B., Akjouj, A., Vasseur, J. O., Dobrzynski, L., Vilcot, J. P., Beaugeois, M., Bouazaoui, M., Fikri, R., Vigneron, J. P.
Format: Article
Language:English
Subjects:
Engineering Sciences
Physics
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Using a finite difference time domain method, the authors study the electromagnetic transmission coefficient of a microwaveguide coupled to a lateral stub. It is shown that if the stub is covered with a thin metallic layer, the transmission spectrum contains several very narrow and deep depressions despite the small size of the resonator. The frequencies of the zeros of transmission are studied as a function of the geometrical parameters of the stub. The quality factor of the dips is increased when the waveguide is separated from the stub by a small air gap.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.2345251