| 光子晶体Vlasov天线辐射特性研究 |
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| 引用本文： | 银燕,郑秋容,张辉,林宝勤,袁乃昌.光子晶体Vlasov天线辐射特性研究[J].强激光与粒子束,2006,18(9):1539-1543. |
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| 作者姓名： | 银燕 郑秋容 张辉 林宝勤 袁乃昌 |
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| 作者单位： | 1. 国防科学技术大学 理学院 应用物理系, 长沙 410073； 2. 国防科学技术大学 机电工程与自动化学院, 长沙 410073；3. 国防科学技术大学 电子工程学院 电子技术系, 长沙 410073 |
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| 基金项目： | 国家安全重大基础研究项目资助课题(51307)，国家863计划项目资助课题 |
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| 摘 要： | 通过在Vlasov天线口径上加装金属面，再在金属面上环绕天线口径排布金属圆柱构成光子晶体，设计出一种新型的光子晶体Vlasov天线。数值仿真及实验结果均表明，光子晶体的带隙特性改善了天线的辐射特性，使得E面上的最大增益在工作频段内平均提高了2.43 dB。
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| 关 键 词： | 光子晶体 高功率微波 Vlasov天线 辐射特性 |
| 文章编号： | 1001-4322(2006)09-1539-05 |
| 收稿时间： | 2005-11-21 |
| 修稿时间： | 2006-05-26 |
Radiation characteristic of photonic-band-gap Vlasov antenna |
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| YIN Yan,ZHENG Qiu-rong,ZHANG Hui,LIN Bao-qin,YUAN Nai-chang.Radiation characteristic of photonic-band-gap Vlasov antenna[J].High Power Laser and Particle Beams,2006,18(9):1539-1543. |
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| Authors: | YIN Yan ZHENG Qiu-rong ZHANG Hui LIN Bao-qin YUAN Nai-chang |
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| Institution: | 1. Department of Applied Physics, College of Science, National University of Defense Technology, Changsha 410073, China;2. College of Mechatronics and Automation, National University of Defense Technology, Changsha 410073, China;3. College of Electronic Science and Engineering, National University of Defense Technology, Changsha 410073, China |
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| Abstract: | A novel photonic-band-gap(PBG) Vlasov antenna is designed.The antenna is surrounded by a metallic PBG structure which is formed by square arrays of metal posts.The lowest global band gap of the twodimensional PBG structure is determined numerically,and the gap is used to reflect and focus the antenna radiation.By numerical computation and experimental measurement,the radiation patterns of the PBG Vlasov antenna have been presented.Moreover,the numerical and experimental results both show that the maximum gain of the PBG antenna has a 2~3 dB addition. |
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| Keywords: | Photonic-band-gap material High power microwave Vlasov antenna Radiation characteristic |
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