Multiple Working Mechanism Metasurface with High Optical Transparency, Low Infrared Emissivity and Microwave Reflective Reduction

Abstract A multiple working mechanism metasurface (MWMM) is proposed to reduce infrared emission and the microwave reflection simultaneously. In addition, it has good oblique performance and achieves compatibility-stealth for infrared(IR)- radar. For these purposes, the first working mechanism of MWMM which is designing stacking two arrays which is ITO as an alternative without other opaque metals is for the visible transparence. The second working mechanism of MWMM which is designing a frequency selective surface (FSS) made of ITO arrays instead of other low infrared emissivity metals achieves the characteristic of IR-stealth. The third and last working mechanism of MWMM are the microwave absorption and the phase cancellation respectively to reduce reflection for microwave-camouflage. The tailored MWMM exhibited a broadband the efficiency larger than 10 dB from 7.21GHz and 18.89GHZ and low IR emissivity is about 0.3 in the region of 3-14μm with high IR-reflection over than 80% under the same region. And comparing with the simple absorber, the part-absorptive principle for infrared will reduce temperature for this MWMM under the higher conditions. This is needed urgently for IR-radar compatible-stealth application.