From First Flight to Future Frontiers: The RBE2 AESA Radar Story

Christian Baghai
3 min readMay 16, 2024

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The story of the RBE2 radar begins in the 1990s, during a time when aviation technologies were advancing rapidly. Thales, a French multinational company, took on the challenge of developing a radar system for the Dassault Rafale, France’s premier multirole combat aircraft. The first prototype of the RBE2 radar made its debut in 1991, marking a significant milestone. However, it was in July 1993 that the radar took its first flight on a Rafale, signaling the start of a technological evolution that would lead to the highly advanced Active Electronically Scanned Array (AESA) we see today.

Technology: From PESA to AESA

Initially, the RBE2 radar utilized Passive Electronically Scanned Array (PESA) technology. But the real game-changer was the transition to Active Electronically Scanned Array (AESA) technology. AESA allows each module in the antenna array to act as its own mini-radar, enabling rapid electronic steering of the beam without any mechanical movement.

Recent Advances in RBE2 AESA Radar Technology

On July 6, 2023, the French Directorate General of Armaments (DGA) announced the development of the RBE2-XG, an evolution of the RBE2-AESA. This new version employs Gallium Nitride (GaN) technology, expected to significantly increase the radar’s range and computational power. This development is part of the Rafale’s upgrade to the F5 standard, which represents a significant enhancement in its operational capabilities.

Capabilities: What Can the RBE2 AESA Do?

The RBE2 AESA radar’s capabilities are impressive:

  1. Long-Range Detection: It can spot and track multiple targets from afar, providing the Rafale with superior situational awareness.
  2. Multiple Target Tracking: In May 2011, the RBE2 AESA demonstrated its ability to track multiple aerial targets, even outside its direct line of sight.
  3. Resistance to Jamming: With robust anti-jamming capabilities, the RBE2 radar remains functional and reliable, even in hostile electronic environments.
  4. Operational Flexibility: The radar can switch between air-to-air and air-to-ground modes, adapting to various mission requirements.

Rafale Fighter’s Upgrades and Enhancements

The Rafale is currently advancing to the F4.2 standard, focusing on collaborative combat capabilities. This includes integrating advanced systems for improved connectivity and passive target localization. The Rafale F4.2 will also feature a new infrared optic for enhanced night identification functions.

Operational Use: Proven in the Field

Rafale jets equipped with the RBE2 AESA radar have been delivered to several air forces around the world, including Egypt, Qatar, India, Greece, Croatia, and the UAE. Its performance in various operational scenarios underscores its reliability and effectiveness.

Future Developments: What’s Next?

Thales is continuously working on enhancing the RBE2 AESA radar. Future upgrades are expected to boost its detection range, improve target tracking, and enhance integration with new weapon systems like the Meteor air-to-air missile.

The Rafale’s Backbone: RBE2 AESA Radar

In conclusion, the RBE2 AESA radar significantly enhances the Rafale’s capabilities, making it a versatile and powerful tool in modern aerial warfare. With its ability to detect threats from long distances, track multiple targets, resist jamming, and switch between operational modes, the RBE2 AESA radar ensures that the Rafale remains a top contender in the world of fighter jets.

As technology continues to evolve, so will the RBE2 AESA radar, adapting to new challenges and maintaining its place at the forefront of radar systems. For any air force looking to dominate the skies, the Rafale equipped with the RBE2 AESA radar is a surefire way to achieve air superiority.

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Christian Baghai
Christian Baghai

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