The project consists of five parts that are separate but are related in that they will develop critical circuits for 5G mobile communications and low power sensors. Part 1 is improving output power, efficiency and linearity of power amplifier (PA) ICs for 28GHz operation. Part 2 is continuing the development of a new frequency-to-digital converter (FDC) based digital PLL architecture via new digital and time-based analog signal processing enhancement techniques. Part 3 is developing ultra-low power circuits and sensors for future IoT biosensors. Part 4 is implementing integrated circuits that sense and wirelessly communicate information from the body while being powered by a multi-input energy aggregating harvester. And Part 5 is continuing the development of phased-arrays for 5G communication links capable of handling Gbps.