D-Band Perfect Anomalous Reflectors for 6G Applications
We demonstrate anomalous reflectors at 140 GHz for the application of 6G communication coverage expansion. The reflectors are designed on cyclo-olefin polymer (COP) substrates on the basis of measured complex permittivity and conductivity at millimeter frequencies obtained with the balanced-type cir...
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2021
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oai:doaj.org-article:30b45c02aa7a4933a808f18b016f1c0f2021-12-03T00:00:45ZD-Band Perfect Anomalous Reflectors for 6G Applications2169-353610.1109/ACCESS.2021.3130058https://doaj.org/article/30b45c02aa7a4933a808f18b016f1c0f2021-01-01T00:00:00Zhttps://ieeexplore.ieee.org/document/9624988/https://doaj.org/toc/2169-3536We demonstrate anomalous reflectors at 140 GHz for the application of 6G communication coverage expansion. The reflectors are designed on cyclo-olefin polymer (COP) substrates on the basis of measured complex permittivity and conductivity at millimeter frequencies obtained with the balanced-type circular disk resonator method. From full-wave simulations, we confirm that nearly perfect anomalous reflection characteristics are realized with suppressed parasitic reflections in undesired directions. The simulated efficiencies excluding the material losses of the reflectors designed with the reflection angle <inline-formula> <tex-math notation="LaTeX">$\theta _{\mathrm {R}}={30}^\circ $ </tex-math></inline-formula>, 45°, 60°, and 75° are 99.5%, 98.9%, 99.7%, and 99.8%, respectively. In addition, we fabricate the designed reflectors on the COP substrates and experimentally evaluate their anomalous reflection performances. The measured overall efficiencies of the reflectors with <inline-formula> <tex-math notation="LaTeX">$\theta _{\mathrm {R}}={45}^\circ $ </tex-math></inline-formula>, 60°, and 75° are 88.0%, 83.6%, and 81.6%, respectively. This is the first demonstration of highly efficient anomalous reflectors in the D-band.Yuto KatoKohei OmoriAtsushi SanadaIEEEarticleAnomalous reflectorscoverage expansionD-bandmetasurfacesmillimeter-wavereflection efficiencyElectrical engineering. Electronics. Nuclear engineeringTK1-9971ENIEEE Access, Vol 9, Pp 157512-157521 (2021) |
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DOAJ |
| collection |
DOAJ |
| language |
EN |
| topic |
Anomalous reflectors coverage expansion D-band metasurfaces millimeter-wave reflection efficiency Electrical engineering. Electronics. Nuclear engineering TK1-9971 |
| spellingShingle |
Anomalous reflectors coverage expansion D-band metasurfaces millimeter-wave reflection efficiency Electrical engineering. Electronics. Nuclear engineering TK1-9971 Yuto Kato Kohei Omori Atsushi Sanada D-Band Perfect Anomalous Reflectors for 6G Applications |
| description |
We demonstrate anomalous reflectors at 140 GHz for the application of 6G communication coverage expansion. The reflectors are designed on cyclo-olefin polymer (COP) substrates on the basis of measured complex permittivity and conductivity at millimeter frequencies obtained with the balanced-type circular disk resonator method. From full-wave simulations, we confirm that nearly perfect anomalous reflection characteristics are realized with suppressed parasitic reflections in undesired directions. The simulated efficiencies excluding the material losses of the reflectors designed with the reflection angle <inline-formula> <tex-math notation="LaTeX">$\theta _{\mathrm {R}}={30}^\circ $ </tex-math></inline-formula>, 45°, 60°, and 75° are 99.5%, 98.9%, 99.7%, and 99.8%, respectively. In addition, we fabricate the designed reflectors on the COP substrates and experimentally evaluate their anomalous reflection performances. The measured overall efficiencies of the reflectors with <inline-formula> <tex-math notation="LaTeX">$\theta _{\mathrm {R}}={45}^\circ $ </tex-math></inline-formula>, 60°, and 75° are 88.0%, 83.6%, and 81.6%, respectively. This is the first demonstration of highly efficient anomalous reflectors in the D-band. |
| format |
article |
| author |
Yuto Kato Kohei Omori Atsushi Sanada |
| author_facet |
Yuto Kato Kohei Omori Atsushi Sanada |
| author_sort |
Yuto Kato |
| title |
D-Band Perfect Anomalous Reflectors for 6G Applications |
| title_short |
D-Band Perfect Anomalous Reflectors for 6G Applications |
| title_full |
D-Band Perfect Anomalous Reflectors for 6G Applications |
| title_fullStr |
D-Band Perfect Anomalous Reflectors for 6G Applications |
| title_full_unstemmed |
D-Band Perfect Anomalous Reflectors for 6G Applications |
| title_sort |
d-band perfect anomalous reflectors for 6g applications |
| publisher |
IEEE |
| publishDate |
2021 |
| url |
https://doaj.org/article/30b45c02aa7a4933a808f18b016f1c0f |
| work_keys_str_mv |
AT yutokato dbandperfectanomalousreflectorsfor6gapplications AT koheiomori dbandperfectanomalousreflectorsfor6gapplications AT atsushisanada dbandperfectanomalousreflectorsfor6gapplications |
| _version_ |
1718373980714303488 |