DRDO’s Uttam AESA vs Israeli EL/M-2052: Radar Technology Compared

Modern aerial warfare is no longer just about firepower—electronic systems, especially radar technologies, play a decisive role in superiority and survivability. In this context, two cutting-edge Active Electronically Scanned Array (AESA) radars stand out in India’s defense planning: India’s indigenous DRDO Uttam AESA radar and the Israeli EL/M-2052 AESA radar developed by Elta Systems.

Both systems are designed to equip advanced fighter jets with superior tracking, targeting, and situational awareness capabilities. But how do they stack up against each other?

What is an AESA Radar?

Before comparing, it’s important to understand AESA technology. Active Electronically Scanned Array (AESA) radars use thousands of tiny transmit/receive modules to electronically steer the radar beam without moving parts. Compared to older mechanically scanned radars, AESA radars offer:

• Faster target tracking and multiple target engagement
• Lower chances of detection (LPI – Low Probability of Intercept)
• Greater resistance to jamming
• Higher resolution and better situational awareness

DRDO Uttam AESA Radar: India’s Indigenous Powerhouse

Overview:

• Developer: DRDO (Electronics & Radar Development Establishment – LRDE)
• Designed for: LCA Tejas Mk1A, AMCA, and potentially Su-30MKI upgrades
• Frequency Band: X-band
• Status: In advanced trials; integration with Tejas Mk1A confirmed

Key Features:

• Solid-state T/R modules with Indian GaAs technology
• Capable of tracking 50+ targets simultaneously
• Simultaneous air-to-air and air-to-ground operations
• Modular design with open architecture for upgrades
• Supports electronic warfare (EW) and data linking

Advantages:

• Indigenous development reduces foreign dependency
• Easier integration with Indian EW and mission systems
• Scalable for both fighter jets and UAVs
• Cost-effective compared to foreign counterparts

EL/M-2052 AESA Radar: Israeli Precision and Proven Design

Overview:

• Developer: Elta Systems, Israel
• Designed for: Multi-role aircraft – Jaguar, MiG-29, Tejas, and others
• Frequency Band: X-band
• Status: Operational; exported to several countries

Key Features:

• Tracks over 60 targets simultaneously
• Range: Estimated to exceed 150+ km for fighter-sized targets
• Multi-mode radar with advanced SAR (Synthetic Aperture Radar)
• Air-to-air, air-to-ground, maritime & terrain-following modes
• High resistance to ECM (Electronic Countermeasures)

Advantages:

• Combat-proven technology with global deployments
• High reliability and performance in diverse environments
• Compatible with legacy platforms (MiG-29, Jaguar upgrades)
• Well-supported logistical ecosystem from Elta/IAI

DRDO Uttam AESA vs EL/M-2052: Side-by-Side Comparison

Strategic Implications for India

• Uttam AESA radar is a cornerstone of India’s self-reliance in defense. Its success would significantly reduce dependency on foreign systems for future air combat platforms like AMCA and TEDBF.
• EL/M-2052 offers battle-tested technology, filling urgent operational needs—especially for aircraft like the Jaguar undergoing mid-life upgrades.

The Indian Air Force’s strategy might involve a hybrid approach—using Israeli radar tech for quick upgrades while phasing in the indigenous Uttam over time.