Analytical solutions of fractional-order diffusion equations by natural transform decomposition method
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Publication Details
Author list: Shah R., Khan H., Mustafa S., Kumam P., Arif M.
Publisher: Hindawi
Publication year: 2019
Volume number: 21
Issue number: 6
ISBN: 9781538682692
ISSN: 0146-9428
eISSN: 1745-4557
Languages: English-Great Britain (EN-GB)
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Abstract
Radome is essential to an aviation communication system as it protects the system antenna from the environmental hostility. Material composite for constructing a radome must be transparent to EM wave in a band specific to the antenna while maintaining stability over the degree of polarization and oblique incidence. This paper presents a wideband radome composite using multilayered FSS based on 2nd -iteration hexaflake fractal patch with Minkowski ring slot. The structure consists of four substrate and five metallic layers with the overall thickness of 8 mm. Taconic TLT-6 is chosen as the substrate material. The FEA results show that the proposed FSS can achieve 3-dB fractional bandwidths (FBW) of 76.3% and 76.5% for TE and TM modes, respectively, at normal incidence. In addition, it maintains a stable frequency response for an oblique incidence of upto 45ฐ. The proposed FSS also has an FBW improvement of 56.3% compared to that of a conventional FSS design. ฉ 2019 IEEE.
Keywords
fractal, hexaflake, Minkowski, multilayer, spatial filter, wideband
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