INNOVATIVE METASURFACE TECHNOLOGIES FOR STEALTH AND ELECTROMAGNETIC INTERFERENCE IN SAR SYSTEMS

This study explores the application potential of electromagnetic cloaking metasurfaces in radar imaging reconnaissance. Two types of metasurfaces, microwave holographic electromagnetic metasurfaces, and digitally tunable metasurfaces, were investigated. Experiments were conducted using sliding rail and vehicle-mounted platforms, focusing on their imaging and interference capabilities. Results demonstrate that the microwave holographic metasurface effectively manipulates electromagnetic waves to image key structural features, albeit with limited texture resolution. Meanwhile, the digitally tunable metasurface dynamically disrupts radar echo signals, generating false targets and degrading imaging accuracy. These findings underscore the practicality of electromagnetic cloaking metasurfaces for stealth and interference applications, providing a robust foundation for advancements in electromagnetic concealment technologies.