W-Band Ultra-Thin Broadband Metamaterial Absorber—Design and Applications
This paper presents a flexible and broadband metamaterial absorber (MA) with a sandwich structure for W-band absorption. The MA uses a thin FR4 material as the dielectric layer and incorporates multiple patches of varying sizes as the top pattern layer. By optimizing the dimensions and arrangement o...
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| Format: | Article |
| Language: | English |
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MDPI AG
2025-03-01
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| Series: | Photonics |
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| Online Access: | https://www.mdpi.com/2304-6732/12/3/282 |
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| author | Jianfei Zhu Yiwei Sheng Li Chen Guoliang Gao Minchao Shi Zhiping Yin Jun Yang |
| author_facet | Jianfei Zhu Yiwei Sheng Li Chen Guoliang Gao Minchao Shi Zhiping Yin Jun Yang |
| author_sort | Jianfei Zhu |
| collection | DOAJ |
| description | This paper presents a flexible and broadband metamaterial absorber (MA) with a sandwich structure for W-band absorption. The MA uses a thin FR4 material as the dielectric layer and incorporates multiple patches of varying sizes as the top pattern layer. By optimizing the dimensions and arrangement of the metal patches, an average absorption rate exceeding 94% is achieved across the 75–110 GHz frequency range, effectively covering the entire W-band. The MA, with a thickness of only 0.22 mm and a weight less than 600 g/m<sup>2</sup>, is polarization-insensitive and maintains high absorption for TM waves within an incident angle of 45°. The structure is simple, low-cost, and compatible with PCB fabrication processes. The experimental results align well with the simulations and demonstrate effective absorbing performance in conformal applications, offering a new solution for flexible millimeter-wave absorption. |
| format | Article |
| id | doaj-art-db4a7dd5b1214c9084b8aebcef334f72 |
| institution | OA Journals |
| issn | 2304-6732 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Photonics |
| spelling | doaj-art-db4a7dd5b1214c9084b8aebcef334f722025-08-20T01:48:53ZengMDPI AGPhotonics2304-67322025-03-0112328210.3390/photonics12030282W-Band Ultra-Thin Broadband Metamaterial Absorber—Design and ApplicationsJianfei Zhu0Yiwei Sheng1Li Chen2Guoliang Gao3Minchao Shi4Zhiping Yin5Jun Yang6Anhui Province Key Laboratory of Measuring Theory and Precision Instrument, School of Instrument Science and Opto-Electronics Engineering, Hefei University of Technology, Hefei 230009, ChinaJianghuai Advance Technology Center, Hefei 230000, ChinaDefense Innovation Institute, Beijing 100071, ChinaHefei Institute of Intelligent Unmanned System, Hefei 230061, ChinaHefei Institute of Intelligent Unmanned System, Hefei 230061, ChinaAnhui Province Key Laboratory of Measuring Theory and Precision Instrument, School of Instrument Science and Opto-Electronics Engineering, Hefei University of Technology, Hefei 230009, ChinaAnhui Province Key Laboratory of Measuring Theory and Precision Instrument, School of Instrument Science and Opto-Electronics Engineering, Hefei University of Technology, Hefei 230009, ChinaThis paper presents a flexible and broadband metamaterial absorber (MA) with a sandwich structure for W-band absorption. The MA uses a thin FR4 material as the dielectric layer and incorporates multiple patches of varying sizes as the top pattern layer. By optimizing the dimensions and arrangement of the metal patches, an average absorption rate exceeding 94% is achieved across the 75–110 GHz frequency range, effectively covering the entire W-band. The MA, with a thickness of only 0.22 mm and a weight less than 600 g/m<sup>2</sup>, is polarization-insensitive and maintains high absorption for TM waves within an incident angle of 45°. The structure is simple, low-cost, and compatible with PCB fabrication processes. The experimental results align well with the simulations and demonstrate effective absorbing performance in conformal applications, offering a new solution for flexible millimeter-wave absorption.https://www.mdpi.com/2304-6732/12/3/282metamaterialsabsorberflexibleW-band |
| spellingShingle | Jianfei Zhu Yiwei Sheng Li Chen Guoliang Gao Minchao Shi Zhiping Yin Jun Yang W-Band Ultra-Thin Broadband Metamaterial Absorber—Design and Applications Photonics metamaterials absorber flexible W-band |
| title | W-Band Ultra-Thin Broadband Metamaterial Absorber—Design and Applications |
| title_full | W-Band Ultra-Thin Broadband Metamaterial Absorber—Design and Applications |
| title_fullStr | W-Band Ultra-Thin Broadband Metamaterial Absorber—Design and Applications |
| title_full_unstemmed | W-Band Ultra-Thin Broadband Metamaterial Absorber—Design and Applications |
| title_short | W-Band Ultra-Thin Broadband Metamaterial Absorber—Design and Applications |
| title_sort | w band ultra thin broadband metamaterial absorber design and applications |
| topic | metamaterials absorber flexible W-band |
| url | https://www.mdpi.com/2304-6732/12/3/282 |
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