India is strengthening its early warning capabilities with plans to develop a 4D Active Electronically Scanned Array (AESA) long-range surveillance radar powered by Gallium Nitride (GaN) technology.
The radar is envisioned to deliver a detection range exceeding 450 kilometers (280 miles) and altitude coverage of up to 40 kilometers (25 miles), broadening the country’s monitoring capability.
It will also incorporate X-band sensing for high-resolution tracking of autonomous threats, including quadcopters, loitering munitions, and drone swarms.
Designed for harsh operating environments, the radar must function in temperatures ranging from -40 degrees Celsius (-104 degrees Fahrenheit) to 50 degrees Celsius (122 degrees Fahrenheit).
It must also be deployable at elevations up to 5,000 meters (16,400 feet), supporting operations in challenging regions such as the Himalayas where terrain and weather often limit radar performance.
Once deployed, the system will work alongside recently inducted systems, including the Surya anti-stealth radar, the Arudhra AESA platform, and Rohini radars.
Advancing India’s Self-Reliance
The initiative aligns with India’s broader “Aatmanirbhar Bharat” vision aimed at reducing reliance on foreign systems and strengthening indigenous defense capabilities across multiple domains.
The use of GaN-based modules is expected to enhance performance by improving power efficiency, extending detection range, and increasing resilience against electronic warfare threats.
Prioritizing domestic industry participation, the Ministry of Defence is involving both private and public sector firms to accelerate development and production.
The radar is expected to bolster India’s layered air defense network and enhance readiness against conventional and asymmetric aerial threats.
