ANDOVER, MA -- Raytheon has developed a new high-tech, Gallium Nitride transmitter for legacy Patriot interceptors -- the GEM-T variant which makes up the bulk of the Army's inventory -- that promises to significantly improve reliability and service life of the guided missile, a capability the company hopes will sweeten interest in its proposed Lower Tier Air and Missile Defense Sensor. The company developed the new Guidance Enhanced Missile (GEM-T)-specific GaN transmitter at its foundry here for an undisclosed foreign...