An active load-pull technique creating time-variant impedances to emulate coupling between power amplifiers
Paper in proceedings, 2017

A method for emulating antenna array coupling effects, based on active load-pull, to present time-varying impedances to power amplifiers is presented. An entire array, given identical elements, can be emulated using a single device-under-test. The method is demonstrated and verified by studying two scenarios, where the resulting adjacent channel power ratio and error-vector magnitude are given as function of delay and coupling for a 6W GaN power amplifier. Differences in adjacent channel power ratio and error-vector magnitude can be attributed to time-variant load impedances.

Coupling

Load-pull

Arrays

5G mobile communication

Power amplifiers

Distortion

Author

Dhecha Nopchinda

Chalmers, Microtechnology and Nanoscience (MC2), Microwave Electronics

Koen Buisman

Chalmers, Microtechnology and Nanoscience (MC2), Microwave Electronics

IEEE MTT-S International Microwave Symposium Digest

0149645X (ISSN)

1437-1440 8058889

Areas of Advance

Information and Communication Technology

Nanoscience and Nanotechnology (2010-2017)

Subject Categories

Telecommunications

Communication Systems

Electrical Engineering, Electronic Engineering, Information Engineering

Signal Processing

DOI

10.1109/MWSYM.2017.8058889

More information

Latest update

9/24/2018