NB-IoT High Linear Doherty Amplifier with Active Balun
Language
EN
Communication dans un congrès avec actes
This item was published in
2022 20th IEEE Interregional NEWCAS Conference (NEWCAS), 2022 20th IEEE Interregional NEWCAS Conference (NEWCAS), 2022-06-19, Quebec City. 2022-08-05p. 89-93
IEEE
English Abstract
This paper presents a Doherty power amplifier with an enhanced power back-off efficiency and a high linearity using an adaptive bias circuit. The silicon area reduction is achieved with an active balun driver topology. The ...Read more >
This paper presents a Doherty power amplifier with an enhanced power back-off efficiency and a high linearity using an adaptive bias circuit. The silicon area reduction is achieved with an active balun driver topology. The operating frequency range is 1.49GHz to 2.17GHz for NB-IoT applications. The post layout simulations (PLS) show a maximum output power of 31.6dBm with a peak PAE of 35.3% at 1.85GHz. The efficiency drops to 28% at 6dB back-off. The robustness to the 2:1 SWR achieves a variation in Gain and P sat of 3dB and 0.8dB, respectively.Read less <
English Keywords
Antenna measurements
Power transmission lines
Power measurement
Baluns
Power amplifiers
Linearity
Transmission line measurements
Power amplifier
Active balun
Doherty
Efficiency enhancement
High linear
Adaptive biasing
5G
NB-IoT