A 30-GHz CMOS SOI outphasing power amplifier with current mode combining for high backoff efficiency and constant envelope operation

K Ning, Y Fang, N Hosseinzadeh… - IEEE Journal of Solid …, 2019 - ieeexplore.ieee.org
High peak and average efficiency is an important feature of power amplifiers (PAs) for 5G
millimeter-wave communication. This article reviews the challenges of conventional …

A coupler-based differential mm-wave Doherty power amplifier with impedance inverting and scaling baluns

HT Nguyen, H Wang - IEEE Journal of Solid-State Circuits, 2020 - ieeexplore.ieee.org
Designing Doherty power amplifiers (PAs) at high millimeter-wave (mm-Wave) range
remains a major challenge because most Doherty combiners at this frequency band are …

A 15-bit quadrature digital power amplifier with transformer-based complex-domain efficiency enhancement

Y Li, Y Yin, D Zheng, X Jia, J Lin, F Gao… - IEEE Journal of Solid …, 2021 - ieeexplore.ieee.org
This article presents a 15-bit quadrature digital power amplifier (DPA) with in-phase and
quadrature (IQ)-cell-sharing and transformer-based Doherty operation, which compensates …

A broadband switched-transformer digital power amplifier for deep back-off efficiency enhancement

Y Yin, T Li, L Xiong, Y Li, H Min… - IEEE Journal of Solid …, 2020 - ieeexplore.ieee.org
This article presents a switched-transformer-based polar Doherty digital power amplifier
(DPA) for deep back-off efficiency enhancement. A single-transformer-footprint parallel …

A linear high-efficiency millimeter-wave CMOS Doherty radiator leveraging multi-feed on-antenna active load modulation

HT Nguyen, T Chi, S Li, H Wang - IEEE Journal of Solid-State …, 2018 - ieeexplore.ieee.org
This paper presents a Doherty radiator architecture that explores multi-feed antennas to
achieve an on-antenna Doherty load modulation network and demonstrates high-speed …

A CMOS highly linear Doherty power amplifier with multigated transistors

D Jung, H Zhao, H Wang - IEEE Transactions on Microwave …, 2019 - ieeexplore.ieee.org
This paper presents a highly linear and power back-off efficiency-enhanced Doherty power
amplifier (PA) fully integrated into CMOS. The proposed Doherty PA employs a transformer …

A CMOS wideband watt-level 4096-QAM digital power amplifier using reconfigurable power-combining transformer

B Yang, HJ Qian, T Wang, X Luo - IEEE Journal of Solid-State …, 2022 - ieeexplore.ieee.org
In this article, a wideband watt-level digital power amplifier (DPA) with high efficiency and
large dynamic range is presented in CMOS technology for wireless applications. To achieve …

A CMOS 1.2-V hybrid current-and voltage-mode three-way digital Doherty PA with built-in phase nonlinearity compensation

D Jung, S Li, JS Park, TY Huang… - IEEE Journal of Solid …, 2019 - ieeexplore.ieee.org
This article presents a fully integrated hybrid current-and voltage-mode three-way digital
Doherty power amplifier (PA) in CMOS using a single supply with builtin large-signal phase …

A watt-level phase-interleaved multi-subharmonic switching digital power amplifier

A Zhang, MSW Chen - IEEE Journal of Solid-State Circuits, 2019 - ieeexplore.ieee.org
This article presents a multi-subharmonic switching (SHS) digital power amplifier (PA)
architecture for enhancing power back-off (PBO) efficiency while achieving watt-level output …

A 4-to-9GHz IEEE 802.15. 4z-compliant UWB digital transmitter with reconfigurable pulse-shaping in 28nm CMOS

H Chen, Z Chen, R Ou, R Chen… - 2022 IEEE Radio …, 2022 - ieeexplore.ieee.org
This paper presents an IEEE 802.15. 4z standard-compliant UWB digital transmitter that
features reconfigurable pulse-shaping. The proposed UWB pulse-shaping technique …