IIT Mandi Develops New Technology for Radar-Invisible Military Equipment

Researchers at IIT Mandi have developed a new technology to make stealth vehicles and covert establishments less visible to radar. The artificial structure created by IIT Mandi absorbs a wide range of radar frequencies, irrespective of the direction from which the radar signal hits the target. The material can also be used to cover windows or glass panels of stealth vehicles and covert establishments, making them invisible to radar.

Bullet Point Summary:

• Artificial structure makes stealth vehicles and covert establishments less visible to radar
• Material absorbs wide range of radar frequencies
• Can be used to cover windows or glass panels of stealth vehicles
• Results published in the journal IEEE Letters on Electromagnetic Compatibility Practice and Applications
• Potential applications for reducing RCS of military equipment and absorbing unwanted radiation leakages

G Shrikanth Reddy, Assistant Professor at IIT Mandi, explains that the technology is based on Frequency Selective Surface (FSS) and can absorb more than 90% of radar waves in a wide range of frequencies. Tests showed that the results matched well with theoretical analysis, verifying its effectiveness. The results of this work have been published in the journal IEEE Letters on Electromagnetic Compatibility Practice and Applications.

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Radar-absorbing materials play a crucial role in defence applications as they reduce or eliminate the radar signature of military equipment such as aircraft, ships, and vehicles. In addition, they can also be used to protect critical infrastructure such as communication towers, power plants, and military bases from radar detection. This can prevent non-friendly entities from targeting important facilities during conflict.

The new technology developed by IIT Mandi has potential applications for reducing the Radar Cross Section (RCS) of military equipment and absorbing unwanted radiation leakages. The team has already developed a prototype, and the results have been published in the IEEE Journal.

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Outcomes:

• The Indian Institute of Technology (IIT) Mandi has created an artificial structure that can make stealth vehicles and covert establishments less visible to radar.
• The material absorbs a wide range of radar frequencies, and can be used to cover windows or glass panels of stealth vehicles and covert establishments.
• The research has been published in the journal IEEE Letters on Electromagnetic Compatibility Practice and Applications.
• The technology has potential applications for reducing the Radar Cross Section (RCS) of military equipment and absorbing unwanted radiation leakages.

1. What is the new technology developed by IIT Mandi researchers?

The IIT Mandi researchers have developed a new technology based on Frequency Selective Surface (FSS) that can make stealth vehicles and covert establishments less visible to radar. The technology absorbs a wide range of frequencies used in radar and can also be used to cover windows or glass panels of these vehicles.

2. How does the new technology work?

The technology works by creating an artificial structure/material that can absorb a wide range of radar frequencies, regardless of the direction from which the radar signal hits the target. This material is made using an optically transparent ITO-coated PET sheet with FSS patterns created using laser engraving technology.

3. What are the potential applications of this technology?

The technology has potential applications in RCS reduction and absorption of unwanted radiation leakages. It can be used on the window or glass panels of stealth vehicles and covert establishments to make them less visible to radar. It can also be used to protect critical infrastructure such as communication towers, power plants, and military bases from radar detection.

4. What is the significance of this research?

The research highlights the importance of using advanced technology and materials in the development of radar-absorbing materials for defence applications. These materials play a crucial role in reducing or eliminating the radar signature of military equipment, such as aircraft, ships, and vehicles.