| Woodpile结构中带隙的调制 |
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| 引用本文： | 冯志芳,张丹丹.Woodpile结构中带隙的调制[J].北京化工大学学报(自然科学版),2012,39(2):110-113. |
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| 作者姓名： | 冯志芳 张丹丹 |
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| 作者单位： | 北京化工大学理学院,北京,100029;北京化工大学理学院,北京,100029 |
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| 基金项目： | 国家自然科学基金(10704006) |
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| 摘 要： | Woodpile结构存在完全带隙，本文采用时域有限差分方法研究了由电介质材料和金属形成的微波波段的woodpile结构。模拟结果表明：前者完全带隙的范围为9GHz～13GHz；当用金属材料代替电介质材料时，完全带隙范围为19GHz～21.5GHz，即带隙向高频方向移动。产生这一结果的主要原因是电磁波在金属中传播时，存在一定的截止频率。
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| 关 键 词： | woodpile结构 完全带隙 金属 |
| 收稿时间： | 2011-07-18 |
Modulation of the band gap in the woodpile structure |
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| FENG ZhiFang
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ZHANG DanDan.Modulation of the band gap in the woodpile structure[J].Journal of Beijing University of Chemical Technology,2012,39(2):110-113. |
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| Authors: | FENG ZhiFang ZHANG DanDan |
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| Institution: | School of Science, Beijing University of Chemical Technology, Beijing 100029, China |
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| Abstract: | Previous reports have shown that there is a complete band gap in the woodpile structure.In this paper,we investigate the band gap in woodpile structures composed of dielectric materials and metallic materials using a finite difference time domain.The results indicate that the band gap for dielectric structures varies from 9 GHz to 13 GHz,while the band gap for metallic structures varies from 19 GHz to 21.5 GHz.The gap moves to higher frequency for the latter because there is a cut-off frequency when an electromagnetic wave propagates through a metal. |
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| Keywords: | woodpile structure band gap metallic |
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