Millimeter-wave low-noise and high-power metamorphic HEMT amplifiers and devices on GaAs substrates. - Colin S. Whelan; Phil F. Marsh; William E. Hoke; Rebecca A. McTaggart; Peter S. Lyman; Peter J. Lemonias; Steven M. Lardizabal; Robert E. Leoni III; Steven J. Lichwala; Thomas E. Kazior (IEEE J. Solid State Circuits, 2000)