A 29-dBm OIP3 dual-stage power amplifier with analog pre-distorter in 0.18 mu m CMOS for IoT transceiver
Document Type
Article
Publication Date
5-4-2022
Abstract
A low power consumption linear power amplifier (PA) for Internet of Things (IoT) application is presented. An analog pre-distorter (APD) is integrated to the PA, which consists of an active inductor, driver amplifier, and an RC phase linearizer. When measured with continuous wave signal, the PA produces more than 12 dB power gain from 2.4 to 2.5 GHz. At the centre frequency of 2.45 GHz, the PA's gain is 12.5 dB with peak power added efficiency (PAE) of 25.6% and maximum output power of 13.7 dBm. The OIP3 achieved is 29.2 dBm with supply voltage headroom of 1.8 V. The proposed APD befit to be a solution to reduce the trade-off between maximum linear output power and PAE.
Keywords
Active inductor, Analog pre-distorter (APD), CMOS, Internet of things (IoT), Linearity, Power added efficiency (PAE), Power amplifier
Divisions
sch_ecs
Funders
Core Research for Evolutional Science and Technology (CREST) (Grant No: 304/PEL ECT/6050378/C121),Universiti Sains Malaysia (Grant No: 1001/PCEDEC/8014079 & 304/PCEDEC/6315056)
Publication Title
IETE Journal of Research
Volume
68
Issue
3
Publisher Location
2-4 PARK SQUARE, MILTON PARK, ABINGDON OR14 4RN, OXON, ENGLAND