Precompensation of Supply Dynamics of Dynamic Power Supply Transmitters Using a Linear Parameter-Varying Model
Journal article, 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

Author

Piet Bronders

Vrije Universiteit Brussel (VUB)

John Lataire

Vrije Universiteit Brussel (VUB)

Thierry Coppens

National Instruments

Guillaume Pailloncy

National Instruments

Sebastian Gustafsson

Chalmers, Microtechnology and Nanoscience (MC2), Microwave Electronics, Microwave Electronics

Yves Rolain

Vrije Universiteit Brussel (VUB)

Gerd Vandersteen

Vrije Universiteit Brussel (VUB)

IEEE Transactions on Microwave Theory and Techniques

0018-9480 (ISSN)

Vol. 67 1 278-287 8520874

Subject Categories

Aerospace Engineering

Signal Processing

Other Electrical Engineering, Electronic Engineering, Information Engineering

DOI

10.1109/TMTT.2018.2876261

More information

Latest update

7/17/2019