Kim Hyung Ki, Ling Kenyu, Kim Kyeongseob, Lim Sungjoon
Opt Express. 2015 Mar 9;23(5):5898-906. doi: 10.1364/OE.23.005898.
In this paper, a novel flexible inkjet-printed metamaterial absorber is proposed. The unit cell of the metamaterial is designed with a modified Jerusalem-cross ring resonator and is inkjet printed with silver nanoparticle ink on a flexible polymer film. All fabrication processes are performed using a commercial printer (EPSON WF-7011). The absorber's flexibility and absorption performance are demonstrated by measuring the absorption ratio after coating the proposed absorber on a cylindrical object with a radius of 4.56 cm. An absorption rate exceeding 99% is achieved at 9.21 GHz for both flat and cylindrical surfaces. In addition, the cylindrical model attains an absorption rate higher than 96% for all polarization angles, and a high absorption rate of 95% is preserved until the incident angle is less than 30þ.
本文提出了一种新型的柔性喷墨打印超材料吸波器。超材料的单元结构采用改进的耶路撒冷十字环形谐振器进行设计，并使用银纳米颗粒墨水在柔性聚合物薄膜上进行喷墨打印。所有制造工艺均使用商用打印机（爱普生WF - 7011）完成。通过测量将所提出的吸波器涂覆在半径为4.56 cm的圆柱形物体上后的吸收率，证明了该吸波器的柔韧性和吸收性能。对于平面和圆柱面，在9.21 GHz时吸收率均超过99%。此外，圆柱形模型在所有极化角度下的吸收率均高于96%，并且在入射角小于30°时，仍保持95%的高吸收率。
