Fast Multiharmonic Active Load–Pull System With Waveform Measurement Capabilities
Journal article, 2012

A novel fast multiharmonic active load–pull system is presented, which allows for the acquisition of the complete voltage and current waveforms. The system is capable of measuring multiple different load impedance or input power states within a short time instance (typically 180 states within 20 ms). It also facilitates high-power capability (up to 100 W) and high-frequency operation (up to 50 GHz). Furthermore, the dynamic range at the higher order harmonics is significantly improved by introducing an equalizer in cascade with the wideband harmonic samplers.

microwave measurements


microwave-power field-effect transistors (FETs)

large-signal network analyzer (LSNA)

Active load–pull


Mattias Thorsell

GigaHertz Centre

Chalmers, Microtechnology and Nanoscience (MC2), Microwave Electronics

Kristoffer Andersson

Chalmers, Microtechnology and Nanoscience (MC2), Microwave Electronics

GigaHertz Centre

IEEE Transactions on Microwave Theory and Techniques

0018-9480 (ISSN)

Vol. 60 1 149 - 157 6065773

Areas of Advance

Information and Communication Technology

Subject Categories

Control Engineering

Other Electrical Engineering, Electronic Engineering, Information Engineering



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