A Novel Fully Differential CMOS Class-E Power Amplifier with Higher Output Power and Efficiency for IoT Application

The class-E amplifiers are used in many devices which need high efficiency, high gain and low power consumption. These types of power amplifiers could be used in the Internet of Thing gadgets, which are widely developed as portable electronic tools nowadays. In this work we present a novel class-E power amplifier (CEPA) that achieves high power gain and high efficiency simultaneously. These approaches are attained by using fully differential topology in our PA design and employing cross coupling neutralization technique. Power consumption of proposed PA is decreased by using LC tank VCO. On the other hand, high power efficiency is achieved by using differential topology. All components are adjusted to have better performance in IoT applications. The proposed CEPA have 29.5 dBm output power in 2.4 GHz, 36 dB power gain and 43.65% PAE. All of our results are verified by the post layout simulations that perform by 0.18 um standard CMOS technology.