Comment on 'Design of a Quad-Band Wide-Angle Microwave Metamaterial Absorber'
| Autor: | Guo-Biao Liu, Xin-Ru Kong, Dao Rina, Haifeng Zhang |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
010302 applied physics
Materials science Solid-state physics business.industry Hexagonal crystal system Metamaterial 02 engineering and technology Molar absorptivity 021001 nanoscience & nanotechnology Condensed Matter Physics Polarization (waves) 01 natural sciences Electronic Optical and Magnetic Materials Optics 0103 physical sciences Materials Chemistry Metamaterial absorber Multi-band device Electrical and Electronic Engineering 0210 nano-technology business Microwave |
| Zdroj: | Journal of Electronic Materials. 48:4166-4169 |
| ISSN: | 1543-186X 0361-5235 |
| DOI: | 10.1007/s11664-019-07194-7 |
| Popis: | In recent days, we read a paper called “Design of a Quad-Band Wide-Angle Microwave Metamaterial Absorber”, which was written by Ren et al. In such report, Ren et al. proposed a quad-band wide-angle absorber based on a metallic hexagonal patch layer. The absorption peaks are located at 6.8 GHz, 8.24 GHz, 11.24 GHz, and 12.7 GHz, whose absorptivity values are 97.2%, 95.2%, 97.7%, and 98.5%, respectively. However, we verified that the results which were given by Ren et al. are wrong because they ignored the polarization conversion. The proposed quad-band metamaterial absorber (QBMA) is not an absorber. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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