TY - JOUR
T1 - Optically Transparent Metasurface With Multispectral-Compatible Camouflage and Millimeter-Wave Transmission Window
AU - Ge, Jiahao
AU - Wang, Xunfan
AU - Li, Bingyang
AU - Xue, Hanyu
AU - Zhang, Cheng
AU - Song, Chaoyun
AU - Lin, Wei
AU - Zhang, Yaqiang
AU - Wang, Yuchao
AU - Chen, Ke
AU - Dong, Hongxing
AU - Zhang, Long
N1 - Publisher Copyright:
© 2025 IEEE.
PY - 2025/1
Y1 - 2025/1
N2 - The continuous advancements in multimode detection and surveillance technologies have made multispectral-compatible camouflage increasingly vital for both defense and civilian applications. Meanwhile, stealth radomes require in-band communication of electromagnetic (EM) signals. This article presents a multifunctional metasurface that provides multispectral-compatible camouflage across visible, infrared (IR), and microwave regions while simultaneously enabling efficient transmission in the millimeter-wave (mm-Wave) band. The proposed system consists of bilayer indium tin oxide (ITO) patterned layers for low IR emissivity and broadband radar absorption along with a metal-meshed frequency-selective surface (FSS) layer for mm-Wave transmission. Both simulated and experimental results indicate that the fabricated sample exhibits more than 90% absorption over a wide microwave frequency band ranging from 7.6 to 16.4 GHz, while a transmission window with an insertion loss (IL) of 0.96 dB is realized at 27.9 GHz in the mm-Wave band. In the IR atmospheric window, the measured emissivity of the metasurface is 0.304 and 0.363 for 3-5 μm and 8-14 μm, respectively. Besides, the measured optical transparency reaches 51.7% in the visible wavelength range of 400-800 nm. This work presents promising opportunities for the engineering application of metasurfaces in optical windows, stealth radomes, and 5G mm-Wave communication systems.
AB - The continuous advancements in multimode detection and surveillance technologies have made multispectral-compatible camouflage increasingly vital for both defense and civilian applications. Meanwhile, stealth radomes require in-band communication of electromagnetic (EM) signals. This article presents a multifunctional metasurface that provides multispectral-compatible camouflage across visible, infrared (IR), and microwave regions while simultaneously enabling efficient transmission in the millimeter-wave (mm-Wave) band. The proposed system consists of bilayer indium tin oxide (ITO) patterned layers for low IR emissivity and broadband radar absorption along with a metal-meshed frequency-selective surface (FSS) layer for mm-Wave transmission. Both simulated and experimental results indicate that the fabricated sample exhibits more than 90% absorption over a wide microwave frequency band ranging from 7.6 to 16.4 GHz, while a transmission window with an insertion loss (IL) of 0.96 dB is realized at 27.9 GHz in the mm-Wave band. In the IR atmospheric window, the measured emissivity of the metasurface is 0.304 and 0.363 for 3-5 μm and 8-14 μm, respectively. Besides, the measured optical transparency reaches 51.7% in the visible wavelength range of 400-800 nm. This work presents promising opportunities for the engineering application of metasurfaces in optical windows, stealth radomes, and 5G mm-Wave communication systems.
KW - Infrared (IR) camouflage
KW - metasurface
KW - microwave absorption
KW - multifunction
KW - optical transparency
KW - transmission window
UR - http://www.scopus.com/inward/record.url?scp=85215587505&partnerID=8YFLogxK
U2 - 10.1109/TMTT.2025.3526833
DO - 10.1109/TMTT.2025.3526833
M3 - Journal article
AN - SCOPUS:85215587505
SN - 0018-9480
JO - IEEE Transactions on Microwave Theory and Techniques
JF - IEEE Transactions on Microwave Theory and Techniques
ER -