Axial-Symmetric Diffraction Radiation Antenna with a Very Narrow Funnel-Shaped Directional Diagram
| Autor: | Yuriy Sirenko, Seil Sautbekov, Merey Sautbekova, Nataliya Yashina, Nursaule Burambayeva, Assel Begimova |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
wave analog of Smith–Purcell radiation
axially symmetric radiators radial dielectric waveguide concentric grating very narrow throat funnel-shaped radiation pattern rigorous electrodynamic modeling Technology Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999 |
| Zdroj: | Applied Sciences, Vol 11, Iss 21, p 10381 (2021) |
| Druh dokumentu: | article |
| ISSN: | 2076-3417 |
| DOI: | 10.3390/app112110381 |
| Popis: | The paper is focused on reliable modeling and analysis of axially symmetric radiators with a very narrow (throat) funnel-shaped radiation pattern. When such a diagram is formed, a wave analogue of Smith–Purcell coherent radiation is realized—the surface wave of a radial dielectric waveguide ‘sweeps out’ with its exponentially decaying part a concentric periodic grating, the fundamental spatial harmonic of which, propagating without attenuation in a direction close to the symmetry axis of the structure, generates a radiation field with the required characteristics. |
| Databáze: | Directory of Open Access Journals |
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