A watt-level quadrature class-G switched-capacitor power amplifier with linearization techniques

SW Yoo, SC Hung, SM Yoo - IEEE Journal of Solid-State …, 2019 - ieeexplore.ieee.org
A 30.1-dBm quadrature transmitter is implemented based on Class-G IQ-cell-shared
switched-capacitor power amplifier (SCPA) and voltage mismatch compensation techniques …

A CMOS wideband current-mode digital polar power amplifier with built-in AM–PM distortion self-compensation

JS Park, Y Wang, S Pellerano, C Hull… - IEEE Journal of Solid …, 2017 - ieeexplore.ieee.org
This paper presents a fully integrated wideband current-mode digital polar power amplifier
(DPA) in CMOS with built-in AM-PM distortion self-compensation. Feedforward capacitors …

Power up potential power amplifier technologies for 5G applications

T Qi, S He - IEEE Microwave Magazine, 2019 - ieeexplore.ieee.org
Power amplifiers (PAs) will receive significant attention in the 5G era because of increasing
wireless communication requirements. The development trends of PAs with broader …

A quadrature class-G complex-domain Doherty digital power amplifier

SC Hung, SW Yoo, SM Yoo - IEEE Journal of Solid-State …, 2020 - ieeexplore.ieee.org
This article presents an efficient quadrature digital power amplifier (DPA) based on a
complex-domain Doherty (CDD) architecture. The proposed CDD architecture allows a PA …

An intrinsically linear wideband polar digital power amplifier

M Hashemi, Y Shen, M Mehrpoo… - IEEE Journal of Solid …, 2017 - ieeexplore.ieee.org
This paper presents an intrinsically linear wideband polar digital power amplifier (DPA)
operating in semi class-E/F2 mode. Without using any type of digital pre-distortion (DPD) …

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 subharmonic switching digital power amplifier for power back-off efficiency enhancement

A Zhang, MSW Chen - IEEE Journal of Solid-State Circuits, 2019 - ieeexplore.ieee.org
This paper presents a subharmonic switching (SHS) digital power amplifier (PA) architecture
that enhances power efficiency in the power back-off (PBO) region. The proposed technique …

A multimode multi-efficiency-peak digital power amplifier

SW Yoo, SC Hung, SM Yoo - IEEE Journal of Solid-State …, 2020 - ieeexplore.ieee.org
A 30.0-dBm polar digital power amplifier (PA) is implemented based on a switched-capacitor
PA (SCPA) and multiple efficiency-enhancement techniques, such as Class-G, Doherty, and …

4.1 a watt-level phase-interleaved multi-subharmonic switching digital power amplifier achieving 31.4% average drain efficiency

A Zhang, MSW Chen - 2019 IEEE International Solid-State …, 2019 - ieeexplore.ieee.org
Modern wireless communication systems often utilize spectrum-efficient modulation
schemes for higher data throughput, given the finite bandwidth. This type of modulation …