Relationship between field shift and phase constant change in two-dimensional three-layered dielectric or hollow waveguides due to uniform bends |
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Authors: | Mitsunobu Miyagi |
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Institution: | (1) Department of Electrical Communications, Faculty of Engineering, Tohoku University, 980 Sendai, Japan |
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Abstract: | It is shown theoretically that the field shift x and phase constant change in two-dimensional three-layered dielectric or hollow waveguides bent uniformly with large bending radiusR are related by x = 2R/
0, where
0 is the axial phase constant. The relationship predicts that the field distributions of the TE0 or TM0 mode shift toward the outward direction of bending, whereas those of other TE
n
or TM
n
(n=1,2,...) modes shift inward in a hollow waveguide. Characteristic features in dielectric waveguides are also described. |
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Keywords: | |
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