ALGAN/GAN DEVICES ON SIC SUBSTRATES WILL BE UTILIZED TO ACHIEVE POWER ADDED EFFICIENCIES (PAE) IN EXCESS OF…

Public award description

ALGAN/GAN DEVICES ON SIC SUBSTRATES WILL BE UTILIZED TO ACHIEVE POWER ADDED EFFICIENCIES (PAE) IN EXCESS OF 85%. THESE WIDE BAND-GAP SOLID-STATE SEMICONDUCTORS WILL BE USED IN NOVEL POWER AMPLIFIER (PA) TOPOLOGIES SUCH AS CURRENT MODE CLASS D (CMCD) AND CLASS E. THE POWER OUTPUT GOAL OF A SINGLE P-BAND PA MODULE IS GREATER THAN 50W, AND THE POWER OUTPUT GOAL OF THE L-BAND PA MODULE IS GREATER THAN 10W. IN TURN, THESE POWER MODULES WILL BE COMBINED IN PUSH-PULL TO BALANCE CONFIGURATIONS FOR HIGHER POWER. PHASE I WILL CONSIST OF CHOOSING THE DEVICES SIZES AND TOPOLOGIES FOR THE PA MODULES, AND PERFORMING EXTENSIVE MODELING AND SIMULATION, ESPECIALLY FOR THE LARGE SIGNAL NON-LINEAR OPERATION WITH HARMONIC TERMINATIONS REQUIRED TO ACHIEVE THE HIGH EFFICIENCY GOALS. IN ADDITION, VARIOUS POWER CONFIGURATIONS WILL BE SIMULATED TO ACHIEVE A 50 OHM OUTPUT WITHOUT EXTENSIVE IMPEDANCE MATCHING TRANSFORMATIONS TO IMPROVE EFFICIENCY AND USEABLE BANDWIDTH. THE POWER SIZING STRATEGIES WILL BE EVALUATED FOR OVERALL SYSTEM EFFICIENCY, SIZE, AND WEIGHT TRADE-OFFS.