Will Doherty continue to rule for 5G?

PM Asbeck - 2016 IEEE MTT-S International Microwave …, 2016 - ieeexplore.ieee.org
High data rate 5G systems are expected to operate at frequencies between 15GHz and
100GHz, and utilize large numbers of antennas in both base-stations and handsets …

Multigate-cell stacked FET design for millimeter-wave CMOS power amplifiers

JA Jayamon, JF Buckwalter… - IEEE Journal of Solid …, 2016 - ieeexplore.ieee.org
To increase the voltage handling capability of scaled CMOS-based circuits, series
connection (stacking) of transistors has been demonstrated in recently reported mm-wave …

Doherty PAs for 5G massive MIMO: Energy-efficient integrated DPA MMICs for sub-6-GHz and mm-wave 5G massive MIMO systems

W Chen, G Lv, X Liu, D Wang… - IEEE Microwave …, 2020 - ieeexplore.ieee.org
To accommodate growing user demand for faster data rates and extensive connectivity,
modern wireless communication systems must evolve to support a sharply increasing …

A Ka-band high efficiency Doherty power amplifier MMIC using GaN-HEMT for 5G application

K Nakatani, Y Yamaguchi… - 2018 IEEE MTT-S …, 2018 - ieeexplore.ieee.org
This paper has reported a Ka-band (27-40GHz) high efficiency doherty power amplifier
(DPA) MMIC (Monolithic Microwave Integrated Circuit) using GaN-HEMT for 5G application …

Watt-level 21–25-GHz integrated Doherty power amplifier in GaAs technology

C Ramella, V Camarchia, A Piacibello… - IEEE Microwave and …, 2021 - ieeexplore.ieee.org
This letter presents the design and characterization of a Doherty power amplifier for K-band
applications based on the GaAs 150-nm pseudomorphic HEMT (pHEMT) technology of …

A 28-GHz symmetrical Doherty power amplifier using stacked-FET cells

DP Nguyen, T Pham, AV Pham - IEEE Transactions on …, 2018 - ieeexplore.ieee.org
A two-stage Ka-band Doherty power amplifier (DPA) using a stacked field-effect transistor
(FET) cell is presented. We demonstrate, for the first time, the two critical parameters in a …

A compact Ka/Q dual-band GaAs MMIC Doherty power amplifier with simplified offset lines for 5G applications

G Lv, W Chen, X Chen… - IEEE transactions on …, 2019 - ieeexplore.ieee.org
In this paper, a Ka/Q dual-band Doherty power amplifier (DPA) with simplified offset lines is
implemented in a 0.1-μm gallium arsenide (GaAs) process. It is found that the dual-band …

8-Watt linear three-stage GaN Doherty power amplifier for 28 GHz 5G applications

D Wohlert, B Peterson, TRM Kywe… - 2019 IEEE BiCMOS …, 2019 - ieeexplore.ieee.org
This paper presents a three-stage Ka-band Doherty power amplifier fabricated using 0.15
μm GaN-on-SiC HEMT technology. Peak-power greater than 8-watts, 30 dB of small-signal …

15 GHz Doherty power amplifier with RF predistortion linearizer in CMOS SOI

N Rostomyan, JA Jayamon… - IEEE Transactions on …, 2017 - ieeexplore.ieee.org
A two-stage, high-power symmetric Doherty power amplifier (PA) at 15 GHz is presented.
The PA is implemented in 45 nm CMOS silicon on insulator and achieves more than 23 dB …

Energy-efficient power amplifiers and linearization techniques for massive MIMO transmitters: a review

X Liu, G Lv, D Wang, W Chen… - Frontiers of Information …, 2020 - Springer
Highly efficient power amplifiers (PAs) and associated linearization techniques have been
developed to accommodate the explosive growth in the data transmission rate and …