The images above, seen here for the first time, are from official material on the Indian AESA radar project for the LCA Tejas, shared with LiveFist. Indian state-owned radar developer Electronics R&D Establishment (LRDE) is in the process of identifying a development partner (DP) for an indigenous AESA radar for future tranches of the Tejas and the Advanced Medium Combat Aircraft (AMCA) and is likely to make a final decision shortly. The radar has begun development in the country. According to official updated material made available to LiveFist, the fully solid-state X-band radar is being developed with the following modes:
Air-to-Air: Multi-target detection and tracking / Multi target ACM (Air-to-Air combat mode) / High resolution raid assessment
Air-to-Ground: High Resolution mapping (SAR mode) / AGR – Air to Ground Ranging / RBM – Real Beam Mapping / DBS – Doppler Beam Sharpening / Ground Moving Target Indication (GMTI) / Ground Moving Target Tracking (GMTT) / Terrain Avoidance (TA)
Air-to-Sea: Sea search and multi target tracking / Range Signature (RS) / Inverse Synthetic Aperture Radar (ISAR)
As I’ve reported here before, the development partner that LRDE identifies will be responsible for “detailed design, development and realisation” of (a) antenna panel constisting of main antenna, guard antenna and sidelobe cancellation antenna, (b) transmit/receive modules/groups, (c) RF distribution network consisting of RF manifold/combiners, RF interface, (d) antenna/beam control chain consisting of T/R control and T/R group control, and (e) array calibration/BITE among other areas.