An energy efficient power amplifier module for wireless nodes of cellular IoT

This paper presents an energy efficient power amplifier module suitable for integration in a wireless Internet of Things (IoT) node. The proposed power amplifier (PA) offers a gain of 13.8 dB, while the Power Added Efficiency (PAE) of 71.7 % is achieved along with high output power of 38.8 dBm. The matching networks are designed using RF35 Taconic substrate with dielectric constant of 3.5. Moreover, the PAE is greater than 64% for 1.8–2.2 GHz (400 MHz band). The proposed PA satisfies the connectivity requirements of IoT wireless nodes through the potential solutions of LTE-Advanced-pro like; LTE-machine-to-machine communication (LTE-M) and Narrow-band LTE (NB-LTE) technology.