一种红外辐射空间可调和超宽带雷达吸波兼容隐身超表面
By alternating multiple ITO patches on a dielectric substrate layer, an infrared radiation spatially adjustable and radar absorption-compatible stealth metasurface was achieved. This solved the problem that a single-layer metasurface could not simultaneously achieve infrared radiation spatial control and radar absorption stealth, and possessed excellent infrared emissivity adjustment and radar absorption performance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- AIR FORCE UNIV PLA
- Filing Date
- 2024-09-05
- Publication Date
- 2026-07-17
AI Technical Summary
Existing technologies cannot simultaneously achieve spatially tunable infrared radiation and radar absorption stealth on a single-layer metasurface. They cannot effectively integrate the infrared radiation characteristics of the target and the background. Furthermore, the thermal radiation properties of existing materials are fixed, making spatial control difficult.
A stealthy metasurface with spatially tunable infrared radiation and ultra-wideband radar absorption is designed. By alternately arranging various ITO patches on a dielectric substrate layer to form low-infrared radiation elements and high-infrared radiation elements, a three-layer absorber is formed by combining a frequency-selective surface layer and a reflective backplate to achieve gradient change and absorption of electromagnetic waves.
It achieves gradient variation in infrared radiation space and radar absorption stealth while having an adjustable infrared emissivity range of 0.25-0.85 and an average absorption rate of over 90% in the 15-40GHz frequency band, possessing optical transparency and good radar stealth performance.
Smart Images
Figure CN119029557B_ABST