Investigation of Microwave Negative Refractive Index (NRI) Transmission Lines Incorporating Tunnel Diodes
Investigation of Microwave Negative Refractive Index (NRI) Transmission Lines Incorporating Tunnel Diodes
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结合隧道二极管的微波负折射率 (NRI) 传输线的研究
DOI：
10.1109/lawp.2012.2203330
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发表时间：
2012-06
影响因子：
4.2
通讯作者：
Xin, Hao
中科院分区：
文献类型：
--
作者：
Chang, Kihun;Jiang, Tao;Ran, Lixin;Xin, Hao
我们研究微波有源超材料传输线纳入增益器件，以提供有效的负电阻。我们的模拟和实验结果表明，通过在单元级插入半导体隧道二极管，这种传输线的负相位常数得以保持（即，保持左手性），同时可以获得增益（传输线的负衰减常数）。有源超材料传输线的重要设计方面进行了讨论。作为一个潜在的应用，被动和主动版本的单单元零阶谐振器天线的基础上的复合右手/左手传输线（CRLH-TL）的性能进行了比较。
We investigate microwave active metamaterial transmission lines incorporating gain devices to provide effective negative resistance. Our simulation and experimental results show that by inserting semiconductor tunnel diode at the unit-cell level, the negative phase constant of this kind of transmission line is maintained (i.e., left-handedness kept) while gain can be obtained (negative attenuation constant of transmission line) simultaneously. Important design aspects of the active metamaterial transmission lines are discussed. As a potential application, the performances of passive and active versions of a single unit-cell zeroth-order resonator antenna based on composite right-handed/left-handed transmission line (CRLH-TL) is also compared.