Reduction of Mutual Coupling Between Strip Dipole Antennas at Terahertz Frequencies With an Elliptically Shaped Graphene Monolayer
Reduction of Mutual Coupling Between Strip Dipole Antennas at Terahertz Frequencies With an Elliptically Shaped Graphene Monolayer
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DOI：
10.1109/lawp.2015.2505333
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发表时间：
2016-01-01
影响因子：
4.2
通讯作者：
Yakovlev, Alexander B.
中科院分区：
文献类型：
--
作者：
Moreno, Gabriel;Bernety, Hossein Mehrpour;Yakovlev, Alexander B.
在这封信中，我们建议使用的地幔斗篷方法的概念，以减少在低太赫兹（THz）频率的条形偶极天线之间的互耦合。在这里，我们表明，通过用椭圆形石墨烯单层覆盖每个天线，可以大大抑制天线之间的电磁相互作用。石墨烯单层的材料性质被适当地调整以提供所需的表面电抗，这导致天线的辐射图案的恢复，就好像它们被隔离和解耦一样。石墨烯相对于其化学势的可调谐性使我们能够在一定频率范围内减少天线之间的互耦合。
In this letter, we propose to use the concept of the mantle cloaking method in order to reduce the mutual coupling between strip dipole antennas at low-terahertz (THz) frequencies. Here, we show that by covering each antenna with an elliptically shaped graphene monolayer, the electromagnetic interaction between the antennas can be suppressed drastically. The material properties of the graphene monolayer are properly tuned to provide the required surface reactance that leads to the restoration of the radiation patterns of the antennas as if they were isolated and uncoupled. The tunability of graphene with respect to its chemical potential allows us to reduce the mutual coupling between the antennas over a range of frequencies.