| 引用本文: | 王泉,谭渊,杨勇,等.人工磁导体在超近反导系统中的应用.[J].国防科技大学学报,2012,34(1):123-126.[点击复制] |
| WANG Quan,TAN Yuan,YANG Yong,et al.Application of AMC on small very-near radar detecting system[J].Journal of National University of Defense Technology,2012,34(1):123-126[点击复制] |
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| 人工磁导体在超近反导系统中的应用 |
| 王泉, 谭渊, 杨勇, 袁乃昌 |
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(国防科技大学 电子科学与工程学院，湖南 长沙 410073)
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| 摘要: |
| 针对坦克超近程主动防护雷达系统中的收发天线隔离问题，分析了由周期结构光子晶体高阻表面形成的人工磁导体（AMC）的等效模型，给出了其反射系数与相移的关系。由于其对电磁波表现出来的吸收和产生相移的特点，提出一种利用光子晶体高祖表面代替传统隔条来提高天线隔离度的新方法。实验结果证明，该方法能使得收发天线在200MHz的带宽达到-80dB以下的隔离度，满足系统要求，并且结构简单、成本低，具有很大的应用价值。 |
| 关键词: 宽带隔离 人工磁导体 超近反导 |
| DOI： |
| 投稿日期：2011-07-12 |
| 基金项目:国家自然科学基金资助项目（60871069）;国家部委基金资助项目（413220404） |
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| Application of AMC on small very-near radar detecting system |
| WANG Quan, TAN Yuan, YANG Yong, YUAN Naichang |
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(College of Electronic Science and Engineering, National University of Defense Technology, Changsha 410073,china)
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| Abstract: |
| To solve the isolation problem of transmitting-receiving antenna in very-near anti-missile system, this research analyzed the equivalent model of AMC, which is made of high-impedance electromagnetic surface, and shows the relationship between its reflectance and phase offset. Then a novel method wa put forward to improve the isolation by the AMC and the experiments show that the method is able to make the isolation reach -80dB in a 200MHz band. So it has a good application value because of its simple structure and low cost. |
| Keywords: wide-band isolation AMC (Artificial Magnetic Conductor) very-near anti-missile |
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