With the development of radar and communication system, frequency selective rasorber (FSR) is in great need. In this article, a flexible rasorber based on graphene is presented and investigated. A passband with small insertion loss and two absorption bands with high absorptivity below and above the passband is realized. Without welding lumped elements, our design can be applied to wide wavelength regions from microwave to low terahertz range, and also conformal situations. Besides, by integrating graphene sandwich structure (GSS), tunable transmission at the passband of the rasorber is realized, which makes our rasorber have the function of energy manipulation. For experimental demonstration, the rasorber prototype is fabricated and measured at microwave region; the fabricated sample shows good flexibility and good tunability, demonstrating that our radome has great application prospect in the field of electromagnetic stealth, compatibility, and protection.

中文翻译：

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基于石墨烯的具有能量操纵功能的柔性吸收器

随着雷达和通信系统的发展，对频率选择性吸收器（FSR）的需求很大。在本文中，提出并研究了一种基于石墨烯的柔性吸收器。实现了插入损耗小的通带和通带上下两个高吸收率的吸收带。无需焊接集总元件，我们的设计可以应用于从微波到低太赫兹范围的宽波长区域，以及保形情况。此外，通过集成石墨烯夹心结构（GSS），实现了吸收器通带处的可调透射，使我们的吸收器具有能量操纵的功能。为了实验演示，在微波区域制造和测量了rasorber原型；制造的样品显示出良好的灵活性和良好的可调性，