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Wideband RCS reduct...
Wideband RCS reduction based on a simple chessboard metasurface
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- Zhou, Changfei (författare)
- Southeast University,Dalian University of Technology
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- Yu, Qi Feng (författare)
- Dalian University of Technology
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- Gustafson, Carl (författare)
- SAAB AB
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- Lau, Buon Kiong (författare)
- Lund University,Lunds universitet,Institutionen för elektro- och informationsteknik,Institutioner vid LTH,Lunds Tekniska Högskola,Kommunikationsteknologi,Forskargrupper vid Lunds universitet,Teoretisk elektroteknik,LTH profilområde: AI och digitalisering,LTH profilområden,Department of Electrical and Information Technology,Departments at LTH,Faculty of Engineering, LTH,Communications Engineering,Lund University Research Groups,Electromagnetic Theory,LTH Profile Area: AI and Digitalization,LTH Profile areas,Faculty of Engineering, LTH
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(creator_code:org_t)
- 2023
- 2023
- Engelska 11 s.
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Ingår i: Journal of Applied Physics. - 0021-8979. ; 133:18, s. 1-11
- Relaterad länk:
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https://portal.resea... (primary) (free)
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http://dx.doi.org/10... (free)
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https://lup.lub.lu.s...
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https://doi.org/10.1...
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Abstract
Ämnesord
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- To avoid being detected by radar, it is necessary to reduce stealthy military platforms' radar cross section (RCS). The operation of overlaying the metasurface (MS) on the targets is a good solution. A simple chessboard MS structure that can achieve low RCS over a large bandwidth is proposed. Only one unit cell is used to construct the MS. First, the unit cell working in 0.5 and 1−λ modes is designed to achieve a stable phase difference of 180° for y- and x-polarized waves. Then, the unit cells and rotated ones are used to form a chessboard structure with different distributions. The compared results show that the chessboard MS with 2 × 2 quadrants can facilitate the widest 10 dB RCS reduction band of 111% and the largest RCS reduction. The proposed structure exhibits excellent RCS reduction even when irradiated by y- and x-polarized waves at an oblique incidence of 30°.
Ämnesord
- NATURVETENSKAP -- Fysik -- Annan fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Other Physics Topics (hsv//eng)
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