| 基于金属线阵列嵌入的低频宽带电路模拟吸波体设计 |
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| 引用本文： | 徐阳秋,张辉彬,周佩珩,陆海鹏,梁迪飞,谢建良. 基于金属线阵列嵌入的低频宽带电路模拟吸波体设计[J]. 物理学报, 2013, 62(5): 58103-058103. DOI: 10.7498/aps.62.058103 |
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| 作者姓名： | 徐阳秋 张辉彬 周佩珩 陆海鹏 梁迪飞 谢建良 |
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| 作者单位： | 1. 电子科技大学微电子与固体电子学院, 电子薄膜与集成器件国家重点实验室, 成都 610054;2. 电磁防护材料教育部工程研究中心, 多频谱吸收材料与结构教育部重点实验室, 成都 610054 |
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| 基金项目： | 国家自然科学基金(批准号: 51025208, 61001026)资助的课题. |
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| 摘 要： | 由于等效电阻谐振条件限制, 传统的单层电路模拟吸波体(CA)结构在低频段不能形成多个谐振点. 为了突破这个限制, 本文提出了一种金属线阵列嵌入的单层CA结构. 该结构在低频段形成了双谐振峰吸收, 拓展了吸波频带. 采用准静态模型, 分析金属线阵列嵌入的单层CA结构内的电磁波的散射. 分析结果表明, 金属线阵列的嵌入使结构的介质层在低频激发等离子体谐振. 在该谐振频率点, 结构形成额外吸收峰, 该吸收峰和单层CA结构原有的吸收峰一起实现了双峰吸收. 实验和FDTD数值计算结果相符合, 结果表明该结构在不增加厚度的前提下, 扩展了低频段的吸波频段.关键词：金属线阵列宽带吸波电路模拟吸波体电阻型频率选择表面
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| 关 键 词： | 金属线阵列 宽带吸波 电路模拟吸波体 电阻型频率选择表面 |
| 收稿时间： | 2012-07-24 |
Design of a low-frequency broadband circuit analog absorbers based on wire media |
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| Xu Yang-Qiu,Zhang Hui-Bin,Zhou Pei-Heng,Lu Hai-Peng,Liang Di-Fei,Xie Jian-Liang. Design of a low-frequency broadband circuit analog absorbers based on wire media[J]. Acta Physica Sinica, 2013, 62(5): 58103-058103. DOI: 10.7498/aps.62.058103 |
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| Authors: | Xu Yang-Qiu Zhang Hui-Bin Zhou Pei-Heng Lu Hai-Peng Liang Di-Fei Xie Jian-Liang |
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| Affiliation: | 1. Northeast Light Alloy Co., Ltd., Haerbin 150008, China;2. State Key Laboratory of Electronic Thin-films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu 610054, China |
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| Abstract: | A circuit analog absorber (CA) with wire medium is presented. Both the original CA and the structure presented are analyzed. It is shown that original CA cannot have more than one resonant frequency in low frequency band, owing to the limitation by the effective resistance. The presented structure breaks the limitation using artificial plasma resonance, with the wave dispersion in the structure analyzed using the quasi-static model. The experimental results, consistent with simulation results based on the finite-difference time-domain (FDTD) method, show that the structure obtains dual-band absorption, thus broadening the absorption band in low frequency band. |
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| Keywords: | wire media broadband absorption circuit analog absorbers RFSS |
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