Sensitivity of AM/AM linearizer to AM/PM distortion in devices

F. L. Ogboi*, P. Tasker, Z. Mohkti, J. Lees, J. Benedikt, S. Bensmida, K. Morris, M. Beach, J. McGeehan

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference Contribution (Conference Proceeding)

2 Citations (Scopus)

Abstract

Baseband injection is a technique that can provide a cost-effective linearizing solution that can be combined with supply modulation techniques such as envelope tracking (ET), to minimize AM/AM distortion and potentially simplify the DSP linearization requirement and associated cost. Recently [8], a new approach for computing the baseband injection stimulus, formulated in the envelope domain, was introduced. The concept was originally demonstrated using a 10W Cree GaN-on-SiC HFET device. In this work its robustness with respect to alternative device technology is investigated using 25W Nitronex NPTB00025 GaN-on-SiC HEMT depletion-mode and a 10W, high-voltage LD-MOS, enhancement-mode devices. Its effectiveness in dealing with AM/AM distortion is confirmed.

Original languageEnglish
Title of host publication83rd ARFTG Microwave Measurement Conference: Microwave Measurements for Emerging Technologies, ARFTG 2014
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
ISBN (Print)9781479944255
DOIs
Publication statusPublished - 2014
Event83rd ARFTG Microwave Measurement Conference: Microwave Measurements for Emerging Technologies, ARFTG 2014 - Tampa, United States
Duration: 6 Jun 20146 Jun 2014

Conference

Conference83rd ARFTG Microwave Measurement Conference: Microwave Measurements for Emerging Technologies, ARFTG 2014
CountryUnited States
CityTampa
Period6/06/146/06/14

Keywords

  • Distortion
  • Modulation
  • Multi-tone
  • Power amplifiers
  • signal

Fingerprint Dive into the research topics of 'Sensitivity of AM/AM linearizer to AM/PM distortion in devices'. Together they form a unique fingerprint.

  • Cite this

    Ogboi, F. L., Tasker, P., Mohkti, Z., Lees, J., Benedikt, J., Bensmida, S., Morris, K., Beach, M., & McGeehan, J. (2014). Sensitivity of AM/AM linearizer to AM/PM distortion in devices. In 83rd ARFTG Microwave Measurement Conference: Microwave Measurements for Emerging Technologies, ARFTG 2014 [6899507] Institute of Electrical and Electronics Engineers (IEEE). https://doi.org/10.1109/ARFTG.2014.6899507