DAVID PORTERFIELD – CEO/CTO
Our founder and CEO, David Porterfield, has over thirty years of experience designing millimeter- and submillimeter-wave components and systems. At Virginia Diodes he led the effort to develop high-efficiency and high-power varactor multipliers operating in the band from 30 GHz to 800 GHz. He developed a full line of broadband frequency doublers covering the standard waveguide bands from WR-22 to WR-1.9 (33-600 GHz) and a line of frequency quadruplers. David developed a novel design for varactor frequency triplers operating at frequencies from 90 GHz to 750 GHz where the second harmonic idler is implemented in a way that makes it easy to bias and assemble the tripler. He has developed a line of hybrid-mode frequency multipliers that exhibit high efficiencies approaching those of varactors but with improved bandwidth.
David has served as the primary investigator on numerous SBIR contracts with NASA and the US Army Research Office for the development of terahertz receivers for atmospheric remote sensing, for the development of millimeter-wave Gunn oscillator replacement technology, and the development of terahertz transmitters. He has served as the principal investigator on numerous NASA SBIR contracts for the development of high-frequency ferrite components including low-loss Faraday rotation isolators, low-loss cryogenic isolators, voltage variable attenuators, Y-junction circulators, and hybrid circulators. He has authored over thirty technical papers and numerous trade journal articles.
He currently owns and operates Micro Harmonics Corporation. His areas of expertise include microwave and millimeter-wave component and system design, high frequency linear and nonlinear electromagnetic simulation and design, gallium-arsenide diode technology and ferrite component design. His education includes:
- University of Virginia, 1998 – Ph.D. Electrical Engineering
- University of Virginia, 1993 – M.S. Electrical Engineering
- Georgia Tech, 1989 – Bachelor of Electrical Engineering
David is a member of Wellspring Presbyterian Church in Daleville, VA. He serves as an elder, Sunday school teacher, missions director, and is active in ministry. He seeks to honor God in all things including his business practices.
David Porterfield on Linked-In