Designing broadband cross-polarization conversion metasurfaces using binary particle swarm optimization algorithm
Owing to their disadvantages of broadband discontinuity, infinite value, or incapability of distinguishing cross-polarization conversions from co-polarization conversions, the traditional linear polarization discrimination methods relating to the phase difference Δφ, the ellipticity angle β, or the...
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| Format: | Article |
| Language: | English |
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Elsevier
2024-11-01
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| Series: | Materials & Design |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S0264127524007949 |
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| author | Jiao Wang Wei-Qi Gu Xin-Cheng Zhao Yan-Nan Jiang Kai-Da Xu |
| author_facet | Jiao Wang Wei-Qi Gu Xin-Cheng Zhao Yan-Nan Jiang Kai-Da Xu |
| author_sort | Jiao Wang |
| collection | DOAJ |
| description | Owing to their disadvantages of broadband discontinuity, infinite value, or incapability of distinguishing cross-polarization conversions from co-polarization conversions, the traditional linear polarization discrimination methods relating to the phase difference Δφ, the ellipticity angle β, or the axial ratio are inapplicable to the software-based optimal design of broadband cross-polarization conversion metasurfaces (CPMs) consisting of subblocks. Therefore, we introduce the pseudo ellipticity angle β′ to characterize the cross-polarization conversion. And based upon the coding metasurfaces and β′, this work first employs the Python-programmed binary particle swarm optimization algorithm to accomplish the optimal design of reflective broadband CPMs. Then, the obtained CPM is further simplified by reprocessing the relatively isolated subblocks, which results in the final CPM. The simulated results show that the final CPM realizes the broadband cross-polarization conversion with β′ ≥ 0.4π and a relative bandwidth of 36.1 % from 11.66 GHz to 16.79 GHz. Moreover, the measured results are in excellent agreements with the simulated ones, which validates the proposed design method. It advances the broadband CPMs design from manual to automated method. |
| format | Article |
| id | doaj-art-6af9bc9ebfef43cd9a62b14dbadbcb25 |
| institution | OA Journals |
| issn | 0264-1275 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Materials & Design |
| spelling | doaj-art-6af9bc9ebfef43cd9a62b14dbadbcb252025-08-20T02:18:56ZengElsevierMaterials & Design0264-12752024-11-0124711341910.1016/j.matdes.2024.113419Designing broadband cross-polarization conversion metasurfaces using binary particle swarm optimization algorithmJiao Wang0Wei-Qi Gu1Xin-Cheng Zhao2Yan-Nan Jiang3Kai-Da Xu4School of Information and Communication, Guilin University of Electronic Technology, Guilin 541004, China; Guangxi Key Laboratory of Wireless Wideband Communication and Signal Processing, Guilin 541004, ChinaSchool of Information and Communication, Guilin University of Electronic Technology, Guilin 541004, ChinaSchool of Information and Communication, Guilin University of Electronic Technology, Guilin 541004, ChinaSchool of Information and Communication, Guilin University of Electronic Technology, Guilin 541004, China; Guangxi Key Laboratory of Wireless Wideband Communication and Signal Processing, Guilin 541004, China; Corresponding authors at: School of Information and Communication, Guilin University of Electronic Technology, Guilin 541004, China.Yangtze Delta Region Institute (Quzhou), University of Electronic Science and Technology of China, Quzhou 324000, China; School of Information and Communications Engineering, Xi’an Jiaotong University, Xi’an 710049, China; Corresponding authors at: School of Information and Communication, Guilin University of Electronic Technology, Guilin 541004, China.Owing to their disadvantages of broadband discontinuity, infinite value, or incapability of distinguishing cross-polarization conversions from co-polarization conversions, the traditional linear polarization discrimination methods relating to the phase difference Δφ, the ellipticity angle β, or the axial ratio are inapplicable to the software-based optimal design of broadband cross-polarization conversion metasurfaces (CPMs) consisting of subblocks. Therefore, we introduce the pseudo ellipticity angle β′ to characterize the cross-polarization conversion. And based upon the coding metasurfaces and β′, this work first employs the Python-programmed binary particle swarm optimization algorithm to accomplish the optimal design of reflective broadband CPMs. Then, the obtained CPM is further simplified by reprocessing the relatively isolated subblocks, which results in the final CPM. The simulated results show that the final CPM realizes the broadband cross-polarization conversion with β′ ≥ 0.4π and a relative bandwidth of 36.1 % from 11.66 GHz to 16.79 GHz. Moreover, the measured results are in excellent agreements with the simulated ones, which validates the proposed design method. It advances the broadband CPMs design from manual to automated method.http://www.sciencedirect.com/science/article/pii/S0264127524007949Cross-polarization conversion metasurfaceCoding metasurfaceDiscrete binary particle swarm optimization |
| spellingShingle | Jiao Wang Wei-Qi Gu Xin-Cheng Zhao Yan-Nan Jiang Kai-Da Xu Designing broadband cross-polarization conversion metasurfaces using binary particle swarm optimization algorithm Materials & Design Cross-polarization conversion metasurface Coding metasurface Discrete binary particle swarm optimization |
| title | Designing broadband cross-polarization conversion metasurfaces using binary particle swarm optimization algorithm |
| title_full | Designing broadband cross-polarization conversion metasurfaces using binary particle swarm optimization algorithm |
| title_fullStr | Designing broadband cross-polarization conversion metasurfaces using binary particle swarm optimization algorithm |
| title_full_unstemmed | Designing broadband cross-polarization conversion metasurfaces using binary particle swarm optimization algorithm |
| title_short | Designing broadband cross-polarization conversion metasurfaces using binary particle swarm optimization algorithm |
| title_sort | designing broadband cross polarization conversion metasurfaces using binary particle swarm optimization algorithm |
| topic | Cross-polarization conversion metasurface Coding metasurface Discrete binary particle swarm optimization |
| url | http://www.sciencedirect.com/science/article/pii/S0264127524007949 |
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