Title :
Hybrid multi-harmonic load- and source-pull system
Author :
Essing, J. ; Malekzadeh, F.A. ; van Roermund, Arthur ; Mahmoudi, R.
Author_Institution :
Mixed-Signal Microelectron. Group, Eindhoven Univ. of Technol., Eindhoven, Netherlands
Abstract :
This paper describes a novel broadband hybrid load- and source-pull system. It eliminates the need for a variable attenuator and variable phase-shifter and it employs the conventional passive tuner calibration procedure. It is established around a Gamma Boosting Unit (GBU), which is composed of two directional couplers and an auxiliary amplifier and which resembles a positive feedback loop. Device measurements at 900MHz and 30GHz demonstrate a significant improvement for the measured output efficiency and transducer gain.
Keywords :
calibration; millimetre wave measurement; millimetre wave phase shifters; transducers; GBU; device measurements; frequency 30 GHz; frequency 900 MHz; gamma boosting unit; hybrid multi-harmonic load-pull system; hybrid multi-harmonic source-pull system; passive tuner calibration procedure; positive feedback loop; transducer gain; variable attenuator; variable phase-shifter; Calibration; Directional couplers; Harmonic analysis; Microwave measurements; Power amplifiers; Reflection coefficient; Tuners; Hybrid; Multi-harmonic load-pull; active load-pull; microwave measurements; microwave power amplifiers;
Conference_Titel :
Microwave Measurement Symposium (ARFTG), 2012 80th ARFTG
Conference_Location :
San Diego, CA
Print_ISBN :
978-1-4673-4817-1
Electronic_ISBN :
978-1-4673-4820-1
DOI :
10.1109/ARFTG.2012.6422433
