A 110-to-130 ghz sige bicmos doherty power amplifier with a slotline-based power combiner

X Li, W Chen, H Wu, S Li, X Yi, R Han… - IEEE Journal of Solid …, 2022 - ieeexplore.ieee.org
This article presents a-band Doherty power amplifier (PA) featuring a low-loss and compact
slotline-based eight-way power combiner to improve the saturated output power and power …

A 28-GHz flip-chip packaged Chireix transmitter with on-antenna outphasing active load modulation

S Li, T Chi, JS Park, HT Nguyen… - IEEE Journal of Solid …, 2019 - ieeexplore.ieee.org
This paper presents a packaged 28-GHz Chireix outphasing transmitter (TX) for power
amplifier (PA) efficiency enhancement at both peak and back-off output power (PBO). The …

A broadband outphasing GaN power amplifier based on reconfigurable output combiner

W Wang, S Li, S Chen, J Cai, Y Li… - IEEE Transactions …, 2023 - ieeexplore.ieee.org
This article introduces a broadband outphasing power amplifier (OPA) design in virtue of a
reconfigurable output combiner. Two T-type matching structures loaded with varactors are …

A MM-wave current-mode inverse outphasing transmitter front-end: A circuit duality of conventional voltage-mode outphasing

S Li, MY Huang, D Jung, TY Huang… - IEEE Journal of Solid …, 2020 - ieeexplore.ieee.org
This article presents a millimeter-wave (mm-wave) transmitter (TX) front-end employing a
new inverse outphasing architecture with current-mode power amplifiers (PAs). This study …

A 112W GaN dual input Doherty-outphasing power amplifier

AR Qureshi, M Acar, J Qureshi… - 2016 IEEE MTT-S …, 2016 - ieeexplore.ieee.org
This paper presents a novel dual-input Doherty-Outphasing Power Amplifier (DOPA)
architecture that combines the efficiency advantages of Doherty and Outphasing amplifiers …

A 5.9 GHz RFDAC-based outphasing power amplifier in 40-nm CMOS with 49.2% efficiency and 22.2 dBm power

Z Hu, LCN de Vreede, MS Alavi… - 2016 IEEE Radio …, 2016 - ieeexplore.ieee.org
In this paper, we present a fully integrated RFDAC-based outphasing power amplifier
(ROPA) in 40-nm CMOS that achieves 22.2 dBm peak output power with 49.2% drain …

Multilevel Outphasing with Over-the-Air Combining in Large Antenna Arrays

V Lampu, G Xu, A Brihuega, M Kosunen… - IEEE Transactions …, 2023 - ieeexplore.ieee.org
This article investigates the feasibility of combinerless multilevel outphasing transmitter as a
potential architecture for large millimeter-wave (mmWave) phased arrays. We consider two …

High-power digital transmitters for wireless infrastructure applications (a feasibility study)

RJ Bootsman, DPN Mul, Y Shen… - IEEE Transactions …, 2022 - ieeexplore.ieee.org
Fully digital transmitters (DTXs) have the potential of replacing analog-intensive transmitter
(TX) line-ups in future massive multiple-input and multiple-output (mMIMO) systems since …

Design and digital predistortion linearization of a wideband outphasing amplifier supporting 200 MHz bandwidth

PL Gilabert, D Vegas, Z Ren, G Montoro… - 2020 IEEE Topical …, 2020 - ieeexplore.ieee.org
This paper presents a holistic approach to design and linearize a wideband outphasing
power amplifier (PA) to efficiently amplify a 200 MHz bandwidth (BW) signal compliant with …

Efficiency Enhancement Technique for Outphasing Amplifier With Extended Power Back-Off Range

W Wang, S Chen, Y Tang, J Cai… - IEEE Transactions on …, 2024 - ieeexplore.ieee.org
The article proposes a modified series compensation (MSC) outphasing power amplifier
(OPA) that maximizes saturation output power and extends power back-off range. The …