A multi-band dual-layer encoded microwave absorber with angle selectivity
This work aims to develop a microwave absorber with tunable angles, utilizing 1-bit coding to achieve precise regulation of absorption angles across different coding states, resulting in selective absorption exceeding 99 %. To meet the pressing demands of modern wireless communication systems for co...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-03-01
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| Series: | Materials & Design |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S0264127525001030 |
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| author | Senfeng Lai Jingyi Luo Junxian Tan Huiyuan Fu |
| author_facet | Senfeng Lai Jingyi Luo Junxian Tan Huiyuan Fu |
| author_sort | Senfeng Lai |
| collection | DOAJ |
| description | This work aims to develop a microwave absorber with tunable angles, utilizing 1-bit coding to achieve precise regulation of absorption angles across different coding states, resulting in selective absorption exceeding 99 %. To meet the pressing demands of modern wireless communication systems for controllable, angle-selective, transparent, and multi-band microwave absorbers, the designed absorber consists of upper and lower transparent coded structures with an intermediate air layer.Further analysis of the absorber’s operating principle revealed that under normal incidence conditions, the absorber exhibits four resonant peaks at 13.1 GHz, 25.0 GHz, 33.5 GHz, and 35.6 GHz, with absorption rates exceeding 99.8 %.Ultimately, we fabricated samples and measured their absorption performance within the frequency range of 0–26 GHz under experimental conditions. The experimental results showed that the absorber demonstrated selective absorption exceeding 90 % for various angles of incidence and frequencies; specifically, it achieved over 99 % absorption only at 2 GHz at an oblique incidence angle of 60°, and over 90 % absorption only at 18 GHz at an incidence angle of 30°.This microwave absorber, capable of achieving 99 % absorption at specific angles and frequencies, showcases significant value in multiple areas such as electromagnetic compatibility, signal integrity, military applications, and communication fields. |
| format | Article |
| id | doaj-art-a81d937fa4994d42b7f052bb45387708 |
| institution | Kabale University |
| issn | 0264-1275 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Materials & Design |
| spelling | doaj-art-a81d937fa4994d42b7f052bb453877082025-02-05T04:31:06ZengElsevierMaterials & Design0264-12752025-03-01251113683A multi-band dual-layer encoded microwave absorber with angle selectivitySenfeng Lai0Jingyi Luo1Junxian Tan2Huiyuan Fu3College of Electronics and Information, Guangdong Polytechnic Normal University, Guangzhou 510665 China; State Key Laboratory of Millimeter Waves, Southeast University, Nanjing 210096 China; Corresponding author at: College of Electronics and Information, Guangdong Polytechnic Normal University, Guangzhou 510665, China.College of Electronics and Information, Guangdong Polytechnic Normal University, Guangzhou 510665 ChinaCollege of Electronics and Information, Guangdong Polytechnic Normal University, Guangzhou 510665 ChinaCollege of Electronics and Information, Guangdong Polytechnic Normal University, Guangzhou 510665 ChinaThis work aims to develop a microwave absorber with tunable angles, utilizing 1-bit coding to achieve precise regulation of absorption angles across different coding states, resulting in selective absorption exceeding 99 %. To meet the pressing demands of modern wireless communication systems for controllable, angle-selective, transparent, and multi-band microwave absorbers, the designed absorber consists of upper and lower transparent coded structures with an intermediate air layer.Further analysis of the absorber’s operating principle revealed that under normal incidence conditions, the absorber exhibits four resonant peaks at 13.1 GHz, 25.0 GHz, 33.5 GHz, and 35.6 GHz, with absorption rates exceeding 99.8 %.Ultimately, we fabricated samples and measured their absorption performance within the frequency range of 0–26 GHz under experimental conditions. The experimental results showed that the absorber demonstrated selective absorption exceeding 90 % for various angles of incidence and frequencies; specifically, it achieved over 99 % absorption only at 2 GHz at an oblique incidence angle of 60°, and over 90 % absorption only at 18 GHz at an incidence angle of 30°.This microwave absorber, capable of achieving 99 % absorption at specific angles and frequencies, showcases significant value in multiple areas such as electromagnetic compatibility, signal integrity, military applications, and communication fields.http://www.sciencedirect.com/science/article/pii/S0264127525001030CodingAngle-selective absorptionTransparencyMulti-Band Absorber |
| spellingShingle | Senfeng Lai Jingyi Luo Junxian Tan Huiyuan Fu A multi-band dual-layer encoded microwave absorber with angle selectivity Materials & Design Coding Angle-selective absorption Transparency Multi-Band Absorber |
| title | A multi-band dual-layer encoded microwave absorber with angle selectivity |
| title_full | A multi-band dual-layer encoded microwave absorber with angle selectivity |
| title_fullStr | A multi-band dual-layer encoded microwave absorber with angle selectivity |
| title_full_unstemmed | A multi-band dual-layer encoded microwave absorber with angle selectivity |
| title_short | A multi-band dual-layer encoded microwave absorber with angle selectivity |
| title_sort | multi band dual layer encoded microwave absorber with angle selectivity |
| topic | Coding Angle-selective absorption Transparency Multi-Band Absorber |
| url | http://www.sciencedirect.com/science/article/pii/S0264127525001030 |
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