Millimeter Wave (mmWave) technology has proven to be critical in developing the next-generation of advanced phased array radar antennas and systems. This presentation will explore and discuss recent technology breakthroughs, in GaN and GaAs, that will force you to reexamine and challenge traditional design paradigms. These new techniques and technologies will help dramatically reduce size, weight, power and cost (SWaP-C) in tomorrow’s radar systems and deliver a new and improved level of performance.