Broadband backscattering reduction realized by array of lossy scatterers.
Opt Express
; 26(26): 34711-34718, 2018 Dec 24.
Article
em En
| MEDLINE
| ID: mdl-30650891
ABSTRACT
We propose an array of randomly distributed lossy scatterers to achieve broadband backscattering reduction. The array efficiently combines absorption and diffusion functionalities by using three subarrays made of ferromagnetic or dielectric scatterers based on resistive octagonal rings. The subarrays have strong absorption in different frequency bands, whereas they have different reflection phases in a wide frequency band, resulting in -10 dB backscattering reduction in a wide frequency range (from 3.15 to 18 GHz). The results are verified by experiments. Our work provides a new way to reduce backscattering in a wider frequency range and at lower frequencies.
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MEDLINE
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En
Ano de publicação:
2018
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Article