| 含复合材料封闭腔电磁屏蔽效能评估 |
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| 引用本文： | 冯博文,闫丽萍,赵 翔,刘 强,孟雪松,周海京. 含复合材料封闭腔电磁屏蔽效能评估[J]. 太赫兹科学与电子信息学报, 2020, 18(4): 650-655 |
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| 作者姓名： | 冯博文 闫丽萍 赵 翔 刘 强 孟雪松 周海京 |
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| 作者单位： | a.College of Electronics and Information Engineering；b.Key Laboratory of Wireless Power Transmission of Ministry of Education，Sichuan University，Chengdu Sichuan 610065，China;Institute of Applied Physics and Computational Mathematics，Beijing 100088，China |
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| 基金项目： | 国家自然科学基金资助项目(61877041) |
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| 摘 要： | 复合材料已广泛应用于现代航空航天、汽车和电子等行业。当复合材料用于腔体外层时，其仅几毫米的厚度为基于时域有限差分(FDTD)法的电磁屏蔽效能评估带来挑战。本文采用亚网格边界条件(SGBC)技术，结合FDTD方法实现了对含复合材料薄层封闭腔的电磁屏蔽效能快速评估。计算了3种不同含复合材料薄层封闭腔在0.1?1 GHz内的电磁屏蔽效能，并与基于全波分析方法软件的仿真结果进行对比，二者计算结果吻合良好，证明了采用该方法在复合材料封闭腔SE分析方面的有效性。
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| 关 键 词： | 屏蔽效能；复合材料；亚网格边界条件；时域有限差分法 |
| 收稿时间： | 2019-12-19 |
| 修稿时间： | 2020-01-17 |
Evaluation of electromagnetic shielding effectiveness for enclosure partially made of composite materials |
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| FENG Bowen,YAN Liping,ZHAO Xiang,LIU Qiang,MENG Xuesong,ZHOU Haijing. Evaluation of electromagnetic shielding effectiveness for enclosure partially made of composite materials[J]. Journal of Terahertz Science and Electronic Information Technology, 2020, 18(4): 650-655 |
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| Authors: | FENG Bowen YAN Liping ZHAO Xiang LIU Qiang MENG Xuesong ZHOU Haijing |
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| Abstract: | Composite materials have been widely employed in modern aerospace, automotive and electronics industries. However, when the composite material is used as external layer of the enclosure, its thickness of a few millimeters, becomes a big challenge for the evaluation of electromagnetic Shielding Effectiveness(SE) based on the Finite-Difference Time-Domain(FDTD) method. Subgridding Boundary Condition(SGBC) method combined with the FDTD method is applied to tackle this issue. The SE of different enclosures has been analyzed in the frequency range of 0.1-1 GHz. The results obtained by using SGBC-FDTD method are compared to those calculated using software based on full wave analysis, and good agreements are observed. |
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