In the UMass Amherst Radio Frequency Nanoelectronics Group, students and scientists work with cutting-edge semiconductor technologies and investigate topics ranging from fundamental device physics to the design of complex integrated systems. A summary of active research projects is given below. Our current and past research has been supported by the following sponsors: DARPA, NSF, ONR, NASA/JPL, Raytheon, Lockheed Martin, HYPRES, HRL LLC, The Harvard Smithsonian Center for Astrophysics, MIT Lincoln Laboratories, and Rigetti Quantum Computing.