A Near-Field Focused Lens Based on Multilayer Transmitarray
Near-field focused antennas are one of the most widely concerned industrialization research studies. Among these application scenarios, the microwave near-field focused lens based on transmitarray is one of the intensively designs, which usually consist of Multilayer Frequency Selective Surface (M-F...
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IEEE
2025-01-01
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| Series: | IEEE Access |
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| Online Access: | https://ieeexplore.ieee.org/document/10988845/ |
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| author | Yuying Li Zhaoran Chen Yang Li Xiayuan Yao |
| author_facet | Yuying Li Zhaoran Chen Yang Li Xiayuan Yao |
| author_sort | Yuying Li |
| collection | DOAJ |
| description | Near-field focused antennas are one of the most widely concerned industrialization research studies. Among these application scenarios, the microwave near-field focused lens based on transmitarray is one of the intensively designs, which usually consist of Multilayer Frequency Selective Surface (M-FSS). In this paper, the theoretical relationship between the transmission response of a single-layer FSS and that of an M-FSS is established, taking into account the interlayer interactions. Through the derived results, a transmitted element based on four-layer FSS was swiftly identified, which could achieve a phase shift of approximately 330 degrees with a transmission magnitude of better than -1.5 dB. A 3-bit quantized near-field focused lens was subsequently designed, fabricated, and tested, whose operating frequency band is 20.5-21.7 GHz. The simulated and measured results show that the presented near-field focused lens has good electromagnetic wave convergence. And both the simulation and measurement verify the validity of the derived expression, indicating its availability for M-FSS transmitarray element design, thereby streamlining the design process. |
| format | Article |
| id | doaj-art-c9f28b201f4244a183ecb4e343eac0b4 |
| institution | DOAJ |
| issn | 2169-3536 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj-art-c9f28b201f4244a183ecb4e343eac0b42025-08-20T03:10:11ZengIEEEIEEE Access2169-35362025-01-0113820038201410.1109/ACCESS.2025.356742610988845A Near-Field Focused Lens Based on Multilayer TransmitarrayYuying Li0Zhaoran Chen1Yang Li2https://orcid.org/0009-0001-4379-0298Xiayuan Yao3https://orcid.org/0000-0003-1117-2628School of Electrical and Electronic Engineering, North China Electric Power University, Beijing, ChinaSchool of Electrical and Electronic Engineering, North China Electric Power University, Beijing, ChinaSchool of Electrical and Electronic Engineering, North China Electric Power University, Beijing, ChinaSchool of Electrical and Electronic Engineering, North China Electric Power University, Beijing, ChinaNear-field focused antennas are one of the most widely concerned industrialization research studies. Among these application scenarios, the microwave near-field focused lens based on transmitarray is one of the intensively designs, which usually consist of Multilayer Frequency Selective Surface (M-FSS). In this paper, the theoretical relationship between the transmission response of a single-layer FSS and that of an M-FSS is established, taking into account the interlayer interactions. Through the derived results, a transmitted element based on four-layer FSS was swiftly identified, which could achieve a phase shift of approximately 330 degrees with a transmission magnitude of better than -1.5 dB. A 3-bit quantized near-field focused lens was subsequently designed, fabricated, and tested, whose operating frequency band is 20.5-21.7 GHz. The simulated and measured results show that the presented near-field focused lens has good electromagnetic wave convergence. And both the simulation and measurement verify the validity of the derived expression, indicating its availability for M-FSS transmitarray element design, thereby streamlining the design process.https://ieeexplore.ieee.org/document/10988845/Transmitarraymultilayer frequency selective surfacenear-field focusedphase shifttransmission coefficienttransmission matrix |
| spellingShingle | Yuying Li Zhaoran Chen Yang Li Xiayuan Yao A Near-Field Focused Lens Based on Multilayer Transmitarray IEEE Access Transmitarray multilayer frequency selective surface near-field focused phase shift transmission coefficient transmission matrix |
| title | A Near-Field Focused Lens Based on Multilayer Transmitarray |
| title_full | A Near-Field Focused Lens Based on Multilayer Transmitarray |
| title_fullStr | A Near-Field Focused Lens Based on Multilayer Transmitarray |
| title_full_unstemmed | A Near-Field Focused Lens Based on Multilayer Transmitarray |
| title_short | A Near-Field Focused Lens Based on Multilayer Transmitarray |
| title_sort | near field focused lens based on multilayer transmitarray |
| topic | Transmitarray multilayer frequency selective surface near-field focused phase shift transmission coefficient transmission matrix |
| url | https://ieeexplore.ieee.org/document/10988845/ |
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