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Modal dispersion curves for annular waveguides with core cross section bounded by conducting and dielectric nonconcentric circles

✍ Scribed by U. K. Singhand; O. N. Singh

Book ID
101273911
Publisher
John Wiley and Sons
Year
2000
Tongue
English
Weight
209 KB
Volume
25
Category
Article
ISSN
0895-2477

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✦ Synopsis

We study the modal characteristics of a wa¨eguide of annular cross section with nonconcentric circular boundaries. In this study, either both or one of the cladding regions is taken as highly conducting. The bipolar coordinate system is introduced for the analysis, and the characteristic equations are deri¨ed. Results show that the absence of concentricity of the two boundaries reduces the number of sustained modes. Dispersion cur¨es show that two types of modes are propagated simultaneously through the wa¨eguide in which either of the claddings is metallic. One type shows an anomalous dispersion beha¨ior. For the wa¨eguide with both of the boundaries conducting, dispersion cur¨es ha¨e the expected shape as in the case of standard annular wa¨eguides of concentric circular boundaries.

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