The U.S. Army is accelerating its search for a new Patriot air defense radar that can detect diverse threats approaching from any direction at any altitude. Lockheed Martin, Northrop Grumman and Raytheon will compete in a “sense-off” this spring to see which company can offer the most versatile, reliable, resilient and producible solution. Raytheon is staking its claim on the basis of unique experience with gallium nitride technology (GaN). GaN functions far better than the silicon traditionally used in chips for powering microwave radars, and Raytheon has been developing its in-house capabilities–including building its own GaN foundry–for 20 years. I have written a commentary for Forbes here.
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