石墨烯能量选择表面研究

Design and Simulation of Graphene Energy Selective Surface

高功率脉冲可以通过耦合进入电子设备与系统,导致系统严重损坏和干扰。为防止系统的损坏,研究了一种既能保护系统正常工作,又能防止高功率脉冲进入系统的能量选择表面。石墨烯是一种电导率可调的新型二维材料,在不加电压偏置时,电磁波能以较小的损耗透过石墨烯能量选择表面,当高功率脉冲入射时,在石墨烯上加电压偏置,可以调节石墨烯的电导率,使得能量通过石墨烯表面时有较大的损耗,保护系统内部电子设备不被高功率脉冲损坏,实现了能量低通的选择。

High power microwave(HPM) electromagnetic pulse can be coupled into electronic devices and systems, causing serious damage and interference to the system. To prevent damage to the system, an energy selection surface(ESS) has been studied that can protect the system from HPM electromagnetic pulse. Graphene is a new type of two-dimensional material with tunable conductivity. The electromagnetic waves can pass through the graphene energy selection surface(GESS) with less insertion loss while no electrostatic biased is applied. When HPM electromagnetic pulse is incident, the electrostatic biased is applied to graphene which will change the conductivity of the graphene so that there is a large loss when the energy passes through the GESS, to protect the electronic equipment.