Minimum Loss Condition of a Bent Rectangular Tube Waveguide

The leakage loss of a tube dielectric waveguide is analyzed analytically and numerically. A minimum loss condition of a bent rectangular tube waveguide is derived in terms of the ratio of refractive index of the tube to the other region using the transverse transmission-line model. The validity of t...

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Bibliographic Details
Published inIEEE photonics technology letters Vol. 23; no. 16; pp. 1133 - 1135
Main Authors Yamauchi, Junji, Nakano, Tomohiro, Harada, Seiji, Nakano, Hisamatsu
Format Journal Article
LanguageEnglish
Published IEEE 15.08.2011
Subjects
Beam-propagation method
bend loss
Electron tubes
Hollow waveguides
leakage loss
Optical losses
Optical waveguides
Rectangular waveguides
Refractive index
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Summary:The leakage loss of a tube dielectric waveguide is analyzed analytically and numerically. A minimum loss condition of a bent rectangular tube waveguide is derived in terms of the ratio of refractive index of the tube to the other region using the transverse transmission-line model. The validity of the derived minimum loss condition is confirmed by the two- and three-dimensional beam-propagation methods.
ISSN:1041-1135
1941-0174
DOI:10.1109/LPT.2011.2157674