High-gain and beam-switchable multibeam holographic metasurface antenna array coated with phase-correcting metasurface
A high-gain and beam-switchable multibeam holographic metasurface antenna (HMSA) array coated with phase-correcting metasurface (PCMS) is proposed. It comprises four identical HMSAs arranged in a crossed-shaped structure. Each beam has a different direction to allow for switchable control according...
| Main Authors: | , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2024
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/179412 |
| _version_ | 1811678444679856128 |
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| author | Wang, Ping Liu, Yi Yin, Bo Lin, Feng Wang, Wensong |
| author2 | School of Electrical and Electronic Engineering |
| author_facet | School of Electrical and Electronic Engineering Wang, Ping Liu, Yi Yin, Bo Lin, Feng Wang, Wensong |
| author_sort | Wang, Ping |
| collection | NTU |
| description | A high-gain and beam-switchable multibeam holographic metasurface antenna (HMSA) array coated with phase-correcting metasurface (PCMS) is proposed. It comprises four identical HMSAs arranged in a crossed-shaped structure. Each beam has a different direction to allow for switchable control according to engineering specifications. The HMSA pattern is generated through holographic interference between the desired beam and the reference wave. A top-hat monopole Yagi radiator is employed as the surface-wave (SW) launcher to produce the reference wave. To enhance the gain, a PCMS is strategically suspended over the HMSA array at a distance of 6 mm. Each cell of the PCMS can provide arbitrary phase compensation in the reference plane to realize the in-phase plane wave. The phase lag arises from nonuniform phase distributions on the MS and different distances from each MS unit cell to the reference plane. It also acts as a superstrate to adjust the free-space wave coupling path. When the free-space wave and SW coupling have the same amplitude but out of phase, they subtract each other. A prototype is fabricated and measured, demonstrating that the use of PCMS can enhance the radiation performance of the HMSA array. This achieves a peak gain of 19.53 dBi, an SLL of less than -14.5 dB, and an aperture efficiency (AE) of more than 26.48%. |
| first_indexed | 2024-10-01T02:53:22Z |
| format | Journal Article |
| id | ntu-10356/179412 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T02:53:22Z |
| publishDate | 2024 |
| record_format | dspace |
| spelling | ntu-10356/1794122024-07-30T04:35:45Z High-gain and beam-switchable multibeam holographic metasurface antenna array coated with phase-correcting metasurface Wang, Ping Liu, Yi Yin, Bo Lin, Feng Wang, Wensong School of Electrical and Electronic Engineering Engineering Beam switchable High gain A high-gain and beam-switchable multibeam holographic metasurface antenna (HMSA) array coated with phase-correcting metasurface (PCMS) is proposed. It comprises four identical HMSAs arranged in a crossed-shaped structure. Each beam has a different direction to allow for switchable control according to engineering specifications. The HMSA pattern is generated through holographic interference between the desired beam and the reference wave. A top-hat monopole Yagi radiator is employed as the surface-wave (SW) launcher to produce the reference wave. To enhance the gain, a PCMS is strategically suspended over the HMSA array at a distance of 6 mm. Each cell of the PCMS can provide arbitrary phase compensation in the reference plane to realize the in-phase plane wave. The phase lag arises from nonuniform phase distributions on the MS and different distances from each MS unit cell to the reference plane. It also acts as a superstrate to adjust the free-space wave coupling path. When the free-space wave and SW coupling have the same amplitude but out of phase, they subtract each other. A prototype is fabricated and measured, demonstrating that the use of PCMS can enhance the radiation performance of the HMSA array. This achieves a peak gain of 19.53 dBi, an SLL of less than -14.5 dB, and an aperture efficiency (AE) of more than 26.48%. This work was supported by the Natural Science Foundation Project of Chongqing under Grant CSTB2023NSCQ-MSX0001 and Grant CSTB2022NSCQ-MSX1125. 2024-07-30T04:35:45Z 2024-07-30T04:35:45Z 2024 Journal Article Wang, P., Liu, Y., Yin, B., Lin, F. & Wang, W. (2024). High-gain and beam-switchable multibeam holographic metasurface antenna array coated with phase-correcting metasurface. IEEE Transactions On Antennas and Propagation, 72(5), 4676-4681. https://dx.doi.org/10.1109/TAP.2024.3385488 0018-926X https://hdl.handle.net/10356/179412 10.1109/TAP.2024.3385488 2-s2.0-85190350319 5 72 4676 4681 en IEEE Transactions on Antennas and Propagation © 2024 IEEE. All rights reserved. |
| spellingShingle | Engineering Beam switchable High gain Wang, Ping Liu, Yi Yin, Bo Lin, Feng Wang, Wensong High-gain and beam-switchable multibeam holographic metasurface antenna array coated with phase-correcting metasurface |
| title | High-gain and beam-switchable multibeam holographic metasurface antenna array coated with phase-correcting metasurface |
| title_full | High-gain and beam-switchable multibeam holographic metasurface antenna array coated with phase-correcting metasurface |
| title_fullStr | High-gain and beam-switchable multibeam holographic metasurface antenna array coated with phase-correcting metasurface |
| title_full_unstemmed | High-gain and beam-switchable multibeam holographic metasurface antenna array coated with phase-correcting metasurface |
| title_short | High-gain and beam-switchable multibeam holographic metasurface antenna array coated with phase-correcting metasurface |
| title_sort | high gain and beam switchable multibeam holographic metasurface antenna array coated with phase correcting metasurface |
| topic | Engineering Beam switchable High gain |
| url | https://hdl.handle.net/10356/179412 |
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