Saab says it is ready for volume production of a fighter radar using gallium-nitride (GaN) technology in an active, electronically scanned array (AESA). The Swedish company appears to be far ahead of competitors, none of which is known to have brought a GaN fighter radar to the same level of maturity. Saab displayed a model of the X-band radar’s antenna at the Seoul ADEX aerospace and defense show in October, promoting the system for South Korea’s proposed KF-X fighter.