Design, optimization, and comparative analysis of wide-band polarization conversion along with dual coding sequences for RCS reduction
Abstract In this paper, a wideband polarization conversion metasurface is designed. Additionally, coding and chessboard metasurfaces are specifically tailored for radar cross-section reduction (RCS). Initially, a compact unit cell demonstrating exceptional polarization conversion performance is intr...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2024-04-01
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| Series: | Scientific Reports |
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| Online Access: | https://doi.org/10.1038/s41598-024-59054-y |
| _version_ | 1827277246743707648 |
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| author | Ashfaq Ahmad Dong-You Choi |
| author_facet | Ashfaq Ahmad Dong-You Choi |
| author_sort | Ashfaq Ahmad |
| collection | DOAJ |
| description | Abstract In this paper, a wideband polarization conversion metasurface is designed. Additionally, coding and chessboard metasurfaces are specifically tailored for radar cross-section reduction (RCS). Initially, a compact unit cell demonstrating exceptional polarization conversion performance is introduced, achieving a polarization conversion ratio (PCR) exceeding 90 $$\%$$ % across frequencies ranging from 7.9 to 22.7 GHz. The PCR remains effective even when oblique incidence angles of up to 30 $$^\circ$$ ∘ are utilized across this frequency band. Roger RT5880, with a thickness of 0.254 mm, serves as the substrate. An airgap is introduced between the substrate and the ground plane to enhance the polarization conversion bandwidth. This unit cell serves as the fundamental building block for subsequent metasurface configurations. To assess the scalability and effectiveness, a 36 $$\times$$ × 36 unit array is assembled, confirming efficient polarization conversion capabilities extending to larger structures. Moreover, a 1-bit coding unit “0” and “1” are formed by the Pancharatnam-Berry phase based on the same-sized meta-atom with 90 $$^\circ$$ ∘ orientations. The robustness and practicality of the design are demonstrated by creating 12 $$\times$$ × 12 lattices and evaluating their RCS reduction potential under two distinct scenarios: a chessboard pattern and a coding-based scheme. Notably, its results indicate substantial RCS reduction across a broad frequency spectrum (7.9 to 22.7 GHz) for both configurations. This study demonstrates the wide-ranging applicability of metasurface design, making it a valuable contribution to the fields of microwave engineering, polarization control, and radar stealth technology. Owing to its simplicity, bandwidth, and versatility, this approach offers innovative solutions for diverse real-world applications. |
| first_indexed | 2024-04-24T07:16:36Z |
| format | Article |
| id | doaj.art-b2c80cc1cb034a87b1aa76eeeb86e549 |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-04-24T07:16:36Z |
| publishDate | 2024-04-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-b2c80cc1cb034a87b1aa76eeeb86e5492024-04-21T11:15:42ZengNature PortfolioScientific Reports2045-23222024-04-0114111310.1038/s41598-024-59054-yDesign, optimization, and comparative analysis of wide-band polarization conversion along with dual coding sequences for RCS reductionAshfaq Ahmad0Dong-You Choi1Information and Communication Engineering, Chosun UniversityInformation and Communication Engineering, Chosun UniversityAbstract In this paper, a wideband polarization conversion metasurface is designed. Additionally, coding and chessboard metasurfaces are specifically tailored for radar cross-section reduction (RCS). Initially, a compact unit cell demonstrating exceptional polarization conversion performance is introduced, achieving a polarization conversion ratio (PCR) exceeding 90 $$\%$$ % across frequencies ranging from 7.9 to 22.7 GHz. The PCR remains effective even when oblique incidence angles of up to 30 $$^\circ$$ ∘ are utilized across this frequency band. Roger RT5880, with a thickness of 0.254 mm, serves as the substrate. An airgap is introduced between the substrate and the ground plane to enhance the polarization conversion bandwidth. This unit cell serves as the fundamental building block for subsequent metasurface configurations. To assess the scalability and effectiveness, a 36 $$\times$$ × 36 unit array is assembled, confirming efficient polarization conversion capabilities extending to larger structures. Moreover, a 1-bit coding unit “0” and “1” are formed by the Pancharatnam-Berry phase based on the same-sized meta-atom with 90 $$^\circ$$ ∘ orientations. The robustness and practicality of the design are demonstrated by creating 12 $$\times$$ × 12 lattices and evaluating their RCS reduction potential under two distinct scenarios: a chessboard pattern and a coding-based scheme. Notably, its results indicate substantial RCS reduction across a broad frequency spectrum (7.9 to 22.7 GHz) for both configurations. This study demonstrates the wide-ranging applicability of metasurface design, making it a valuable contribution to the fields of microwave engineering, polarization control, and radar stealth technology. Owing to its simplicity, bandwidth, and versatility, this approach offers innovative solutions for diverse real-world applications.https://doi.org/10.1038/s41598-024-59054-yWide bandwidthMetamaterialmm-wave antennaMIMOMiniaturized5G |
| spellingShingle | Ashfaq Ahmad Dong-You Choi Design, optimization, and comparative analysis of wide-band polarization conversion along with dual coding sequences for RCS reduction Scientific Reports Wide bandwidth Metamaterial mm-wave antenna MIMO Miniaturized 5G |
| title | Design, optimization, and comparative analysis of wide-band polarization conversion along with dual coding sequences for RCS reduction |
| title_full | Design, optimization, and comparative analysis of wide-band polarization conversion along with dual coding sequences for RCS reduction |
| title_fullStr | Design, optimization, and comparative analysis of wide-band polarization conversion along with dual coding sequences for RCS reduction |
| title_full_unstemmed | Design, optimization, and comparative analysis of wide-band polarization conversion along with dual coding sequences for RCS reduction |
| title_short | Design, optimization, and comparative analysis of wide-band polarization conversion along with dual coding sequences for RCS reduction |
| title_sort | design optimization and comparative analysis of wide band polarization conversion along with dual coding sequences for rcs reduction |
| topic | Wide bandwidth Metamaterial mm-wave antenna MIMO Miniaturized 5G |
| url | https://doi.org/10.1038/s41598-024-59054-y |
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