| 用做二向色镜的分形频率选择表面研究 |
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| 引用本文： | 许戎戎,ZONG Zhi-yuan,宗志园,吴文,许勇平.用做二向色镜的分形频率选择表面研究[J].红外技术,2008,30(8). |
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| 作者姓名： | 许戎戎 ZONG Zhi-yuan 宗志园 吴文 许勇平 |
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| 作者单位： | 1. 近程高速目标探测技术国防重点学科实验室,南京理工大学,江苏,南京,210094
2. 云南国防工业职业技术学院,机电工程系,云南,昆明,650222 |
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| 基金项目： | 国防科技应用基础研究基金，国家部委科研项目 |
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| 摘 要： | 毫米波/红外复合制导共口径天线需要使用二向色镜,用于透射微波/毫米波、反射红外,提出了用分形频率选择表面(FSS)实现二向色镜的方法,设计了一种Ku波段和Ka波段双频带通的Y环分形FSS,基于频域有限差分法(FDFD)和周期边界对其进行了仿真分析,并进行了实物研制,仿真和测试结果表明,该分形FSS结构具有稳定而优良的频率特性,同时圆极化性能好、工程实现简单,而且对大于5 μm的红外信号反射率最高接近90%.
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| 关 键 词： | 二向色镜 频率选择表面 红外/毫米波 |
Study on Fractal FSS for Dichroic Beam Combiner |
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| XU Rong-rong,ZONG Zhi-yuan,WU Wen,Xu Yong-ping.Study on Fractal FSS for Dichroic Beam Combiner[J].Infrared Technology,2008,30(8). |
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| Authors: | XU Rong-rong ZONG Zhi-yuan WU Wen Xu Yong-ping |
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| Affiliation: | XU Rong-rong1,ZONG Zhi-yuan1,WU Wen1,Xu Yong-ping2(1.Ministerial Key Laboratory of JGMT,Nanjing University of Science , Technology,Nanjing Jiangsu 210094,China,2.Yunnan Polytechnic Institute of Defense Industry,Kunming Yunnan 650222,China) |
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| Abstract: | In this paper,a novel synthesis theory is proposed to design the dichroic beam combiner of MMW/IR co-aperture compound antenna using fractal frequency selective surface(FSS).And a FSS based on Y-loop fractal elements with dual-band at Ku and Ka band is designed.The finite difference frequency domain(FDFD)method is adopted to simulate the transmission and reflection characteristics of the proposed FSS.Both simulated and experiment results show that the FSS proposed takes the advantages of stable and good fre... |
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| Keywords: | dichroic beam combiner(DBC) frequency selective surface(FSS) IR/MMW |
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