Excitation and Propagation of a Fast Pulse Guided Wave in a Circular Dielectric Waveguide
It is shown that a pulse signal in a circular dielectric waveguide is partitioned into slow and fast waves. The fast wave propagates along the dielectric surface with the speed of light in free space and creates a precursor field in the dielectric waveguide in the form of cones similar to Cherenkov...
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| Date: | 2013 |
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| Main Authors: | , |
| Format: | Article |
| Language: | English |
| Published: |
Радіоастрономічний інститут НАН України
2013
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| Series: | Радиофизика и радиоастрономия |
| Subjects: | |
| Online Access: | https://nasplib.isofts.kiev.ua/handle/123456789/100144 |
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| Journal Title: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Cite this: | Excitation and Propagation of a Fast Pulse Guided Wave in a Circular Dielectric Waveguide / M.N. Legenkiy, A.Yu. Butrym // Радиофизика и радиоастрономия. — 2013. — Т. 18, № 2. — С. 147-151. — Бібліогр.: 14 назв. — англ. |
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Digital Library of Periodicals of National Academy of Sciences of Ukraine| Summary: | It is shown that a pulse signal in a circular dielectric waveguide is partitioned into slow and fast waves. The fast wave propagates along the dielectric surface with the speed of light in free space and creates a precursor field in the dielectric waveguide in the form of cones similar to Cherenkov radiation. These cones are re-reflected at the critical angle between the dielectric interfaces creating a rhombus-shaped wave structure. Long time modeling of this fast wave has been conducted using the Moving Frame Body of Revolution FDTD technique (BOR-FDTD). The revealed peculiarities of the considered wave structure are discussed. |
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