Dr. Carl Mueller is a research scientist for Analex Corporation at the National Aeronautics and Space Administration's Glenn Research Center at Lewis Field in Cleveland, Ohio. His research interests include ferroelectric thin-film materials for frequency and phase-tunable devices for phase shifters and filters and the development of silicon germanium (SiGe/Si) modulation-doped field-effect transistor (MODFET) structures on sapphire substrates with high carrier mobilities, for use in high-frequency, radiation-hard electronics circuitry. He is also involved in the development of communications devices based on nanotechnology.

Dr. Mueller earned his doctoral degree in materials science and engineering from the University of Florida in 1992. He has authored over 50 publications and two book chapters and holds three U.S. patents. His expertise is in the development of novel communication devices that utilize unique materials properties for enhanced microwave performance.