A Compact L-Band Reverse-Type Envelope Tracking System

S Paul, N Wolff, T Kuremyr, C Delepaut… - IEEE Transactions …, 2024 - ieeexplore.ieee.org
This article presents the implementation and in-depth analysis of a compact L-band reverse-
type envelope tracking (ET) system comprising a floating-source RF power amplifier (PA) …

Supply modulator ripple in envelope tracking systems-effects and countermeasures

S Alsahali, A Alt, P Chen, G Wang… - 2019 49th European …, 2019 - ieeexplore.ieee.org
Envelope tracking power amplifiers (ET PAs) are one of the promising architectures to
provide high efficiency amplification for future wireless communication systems. This is due …

An Efficient and Fast Reverse Buck Converter for High-Power Envelope-Tracking Systems

S Paul, N Wolff, C Delepaut, W Heinrich… - 2022 52nd …, 2022 - ieeexplore.ieee.org
This paper presents an efficient and fast reverse buck converter targeting high-power
envelope-tracking applications with up to 20MHz instantaneous bandwidth. The power …

Characterising the baseband impedance of supply modulators using simple modulated signals

A Alt, A Villarruel-Parra, P Chen… - … and Millimetre-Wave …, 2020 - ieeexplore.ieee.org
Envelope tracking is one of the promising technologies for 5G power amplifiers, providing
high power efficiency over a wide output power range by modulating the supply voltage …

Supply modulated GaN HEMT power amplifiers-From transistor to system

A Alt - 2021 - orca.cardiff.ac.uk
Power amplifiers (PAs) for mobile communication applications are required to fulfil stringent
requirements concerning linearity while keeping a high efficiency over a wide power range …