Material to help detection!

Material to help detection!

Scientists at the Indian Institute of Technology-Kanpur have developed textile-based metamaterials that can help defence personnel and vehicles avoid being detected by enemy radars.The Defence Research Development Organisation, the department of science and technology, and IIT-K supported the project. Kumar Vaibhav Srivastava of the electrical engineering department and J Ramkumar of the mechanical engineering department of the institute carried out this project.The materials can be used as uniforms for personnel or covering ground vehicles to avoid their detection by the enemy’s advanced battlefield radars, motion-detecting ground sensors and thermal imaging systems. The material is flexible and can be customized for different climates.They have designed and produced micro-structured infra-red metamaterials with processes that can be readily scaled for mass production to cover large area surfaces. These infra-red metamaterials are applied on any given surface to reduce the thermal emission to create infra-red stealth.Transparent meta-material absorbers have also been developed for vehicular windshields or a canopy of slow aircraft like helicopters.They are also in the process of developing robust meta-materials for radar stealth which can be applied on high-speed aircraft and switchable meta-materials for active camouflage applications.These Metamaterials are of lightweight, ultra-thin and flexible materials that could be applied literally on any surface to give the required properties at radar frequencies, infra-red frequencies.Laboratory level development of demonstrations has been completed and now they are proceeding for field testing.

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