Precompensation of Supply Dynamics of Dynamic Power Supply Transmitters Using a Linear Parameter-Varying Model
Artikel i vetenskaplig tidskrift, 2019

The use of a linear parameter-varying framework is proposed as a viable design tool for dynamic power supply transmitters. Accurate synchronization between the low-and high-frequency paths of these devices is an essential requirement for obtaining optimal results. Using this framework, the estimation of the low-frequency dynamics of the supply path is made possible for actual operational conditions. A precompensation model can, as a result, be designed to compensate for these unwanted dynamics, improving both the linearity and the energy efficiency of the resulting device. Moreover, the procedure does not require access to any internal nodes and can be implemented digitally without modification of the existing hardware. A measurement example demonstrates the advantages and improvements that become possible with the proposed technique.

envelope tracking (ET)

Dynamic power supply (DPS) transmitters

envelope shaping

linear parameter-varying (LPV) model

precompensation

Författare

Piet Bronders

Vrije Universiteit Brüssel (VUB)

John Lataire

Vrije Universiteit Brüssel (VUB)

Thierry Coppens

National Instruments

Guillaume Pailloncy

National Instruments

Sebastian Gustafsson

Chalmers, Mikroteknologi och nanovetenskap (MC2), Mikrovågselektronik, Mikrovågselektronik

Yves Rolain

Vrije Universiteit Brüssel (VUB)

Gerd Vandersteen

Vrije Universiteit Brüssel (VUB)

IEEE Transactions on Microwave Theory and Techniques

0018-9480 (ISSN)

Vol. 67 1 278-287 8520874

Ämneskategorier

Rymd- och flygteknik

Signalbehandling

Annan elektroteknik och elektronik

DOI

10.1109/TMTT.2018.2876261

Mer information

Senast uppdaterat

2019-07-17