What is the Arudhra Radar?

March 24, 2023

The Defence Ministry recently signed a contract with Bharat Electronics Limited (BEL) for the purchase of Arudhra radar.

About Arudhra Radar:

  • Arudhra is a Medium Power Radar (MPR) designed and developed by the Defence Research and Development Organisation (DRDO).
  • It will be manufactured by BEL.
  • Features:
    • It is a 4D multi-function phased array radar with electronic steering in both azimuth (angular position from a reference direction) and elevation for surveillance, detection, and tracking of aerial targets.
    • It features a rotating active phased array antenna with solid state transceiver modules operating in S-band (2-4GHz).
    • The transceiver modules (TRM) are based on the antenna array itself, leading to high receiver sensitivity, enabling the radar to detect low observable targets at a long range.
    • It can track a small fighter-sized target as far as 300km at an altitude between 100 meters to 30 km.
    • Arudhra is fully programmable from the local Operator Work Station and from the remote Operator Work Station Unit. 
    • Arudhra being a 4D radar, can determine the range (straight distance from radar), azimuth (angular position from a reference direction), altitude (distance from the ground), as well as velocity vector (representation of the direction of motion) of a target.