Novel Absorber Based on Pixelated Frequency Selective Surface Using Estimation of Distribution Algorithm
| Autor: | Ling Miao, Qiao Wang, Peng Kong, Mengyun Zhao, Yun He, Jianjun Jiang, Xiao-Wei Yu |
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| Rok vydání: | 2015 |
| Předmět: |
Materials science
Pixel Physics::Instrumentation and Detectors Image quality business.industry Electromagnetic radiation law.invention Optics Estimation of distribution algorithm Absorption band Position (vector) law Electrical and Electronic Engineering Resistor Absorption (electromagnetic radiation) business |
| Zdroj: | IEEE Antennas and Wireless Propagation Letters. 14:1467-1470 |
| ISSN: | 1548-5757 1536-1225 |
| DOI: | 10.1109/lawp.2015.2411692 |
| Popis: | A novel design method for absorber is presented, based on pixelated FSS with common effect of metallic pixels and lumped resistors. Considering the relative position of resistors and pixelated patches, the estimation of distribution algorithm is firstly employed to optimize the absorbing performance. Optimization process demonstrates its availability and high-efficiency. An absorption band (3.08–6.00 GHZ) below $-6~\hbox{dB}$ formed with two strong absorption peaks is achieved, compared with the poor absorption performance in pixelated FSS without resistors. The simulated surface current distributions suggest that the loaded resistors are the main source for energy loss of incident electromagnetic wave, and provide an intuitive explanation to the correlation of optimized unit cell geometry and corresponding absorption peaks. The designed absorber is fabricated and the measured reflectivity curve fits well with the simulated results, which indicates that the availability of novel design method. |
| Databáze: | OpenAIRE |
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