Ziqin Ding, University of Florida, Electrical and Computer Engineering, Ft Walton Beach, FL, United States, Vladimir A Rakov, University of Florida, Electrical and Computer Engineering, Gainesville, FL, United States, Yanan Zhu, University of Alabama in Huntsville, Huntsville, United States and Manh D Tran, Rhombus Power Inc., Moffett Field, CA, United States