| Autor: |
Zhenzhong Yu, Zhong Yang, Yan Zhang, Xingliu Hu, Yizhi Wang |
| Jazyk: |
angličtina |
| Rok vydání: |
2020 |
| Předmět: |
|
| Zdroj: |
IEEE Access, Vol 8, Pp 26468-26477 (2020) |
| Druh dokumentu: |
article |
| ISSN: |
2169-3536 |
| DOI: |
10.1109/ACCESS.2020.2968169 |
| Popis: |
The cylindrical illusion device with isotropic and homogeneous materials is studied deeply based on the Mie scattering theory. The formula for illusion of core-shell structure is derived in the quasistatic approximation. Whether the inner core is a dielectric or PEC material, it can be equivalent to a certain target cylinder after wrapping a properly designed shell. We investigate what range of permittivity of the shell may be possible to achieve a target, which can provide convenient and intuitive design charts for an approximate design a core-shell illusion device. It is found that the number for the thickness of the shell is zero, one or two when the permittivities of the target and the shell take a variety of parameters. Moreover, the physical insights into the parameters' distribution are explained by analyzing the electric dipole moments in each part of the core-shell structure. It is interesting to see that a double negative material can be equivalently achieved by a PEC core coated with a positive magnetic material, which may offer a new design approach for the realization of double negative materials. The scattering widths and full-wave simulations are given to verify correctness of the proposed method. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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