Dispersion engineered metamaterial-based transmission line for conformal surface application
Dispersion engineered metamaterial-based transmission line for conformal surface application
复制标题
用于共形表面应用的基于色散工程超材料的传输线
DOI：
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发表时间：
2008
期刊：
影响因子：
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通讯作者：
Tatsuo Itoh
中科院分区：
文献类型：
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作者：
M. R. Hashemi;Tatsuo Itoh
本文提出了一种新型的共形超材料传输线，并研究了共形效应。所提出的结构是一个25个单元格的复合右/左手（CRLH）TL，是符合一个圆柱形的对象，半径为20.0厘米。构象上的CRLH TL的影响进行了研究两种情况：慢波模式操作和快波模式操作。结果表明，构象的结构的性能在S参数方面的影响不显着时，该结构是在慢波区工作。相反，当CRLH TL工作在快波区时，构象将导致显著的性能变化。这些变化发生在结构的漏波辐射特性方面。在后一种情况下，色散工程被用来修改共形结构，使得它在辐射特性方面提供与平面版本相当的性能。
In this paper, a novel conformal metamaterial-based transmission line (TL) is introduced and the effect of conformation is investigated. The presented structure is a 25 unit-cell composite right/left-handed (CRLH) TL that is conformed on a cylindrical object with a radius of 20.0 cm. The effect of conformation on this CRLH TL is investigated for two situations: slow-wave mode operation and fast-wave mode operation. It is shown that conformation has insignificant effect on the structure’s performance in terms of S-parameters when the structure is operating in the slow-wave region. Conversely, when the CRLH TL is operating in the fast-wave region conformation will result in significant performance changes. These changes occur in terms of the leaky-wave radiation characteristics of the structure. In the later case, dispersion engineering is employed to modify the conformal structure such that it provides comparable performance to the planar version in terms of radiation characteristics.