NB-IoT High Linear Doherty Amplifier with Active Balun
Langue
EN
Communication dans un congrès avec actes
Ce document a été publié dans
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
Résumé en anglais
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 ...Lire la suite >
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.< Réduire
Mots clés en anglais
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
Unités de recherche