RTX and DARPA to revolutionize Gallium Nitride technology for improved radio frequency sensors

TUCSON, Ariz., Nov. 16, 2023 ~ Raytheon, a business of RTX (NYSE: RTX), has been awarded a four-year, $15 million contract from DARPA to increase the electronic capability of radio frequency sensors with high-power-density Gallium Nitride transistors. The improved transistors will have 16 times higher output power than traditional Gallium Nitride with no increase in operating temperature.

Raytheon is the world's leading manufacturer of military-grade Gallium Nitride, a cutting-edge semiconductor technology that, when used in radar systems, improves range and radar resource management handling. This new prototyping work is being performed under DARPA's Technologies for Heat Removal in Electronics at the Device Scale program, known as THREADS.

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Colin Whelan, president of Advanced Technology at Raytheon said "Our engineers have unlocked a new way to produce Gallium Nitride, where thermal management is no longer a limiting factor. These new system architectures will result in sensors with enhanced range."

To achieve this goal, Raytheon is partnering with the Naval Research Laboratory, Stanford University and Diamond Foundry to grow diamond, the world's best thermal conductor for integration with military-grade GaN transistors and circuits. Cornell University, Michigan State University, the University of Maryland and Penn State University are also providing technology and performance analysis.

Raytheon has invested in Gallium Nitride research and development for nearly 25 years and has used it in defense systems like the Patriot®, LTAMDS/GhostEye family of radars, APG-79(v)4 and SPY-6 family of radars. Work on this contract is being conducted in Andover, Massachusetts.
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