Design of highly-efficient wideband RF polar transmitters using Envelope-Tracking (ET) for mobile WiMAX/Wibro applications

Donald Y.C. Lie, Yan Li, Jerry Lopez, Stanley Wu, Tzu Yin Yang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Scopus citations

Abstract

This paper discusses both circuits and system design aspects of highly-efficient wideband RF polar transmitters for mobile WiMAXlWibro applications using an open-loop envelope tracking (ET) technique. The design of linear-assisted switching envelope amplifier and monolithic SiGe class-E power amplifier (PA) is discussed, while the SPICE simulation results are compared with the measurement data. WiMAXlWibro circuit and system co-design that include RF circuits and digital DSP blocks co-simulations suggest that the entire highly integrated ET-based transmit (TX) system can meet the stringent 802.16e mobile-WiMAX TX mask with 64QAM modulation and reach ∼33% peak system efficiency.

Original languageEnglish
Title of host publicationASICON 2009 - Proceedings, 2009 8th IEEE International Conference on ASIC
Pages347-350
Number of pages4
DOIs
StatePublished - 2009
Event2009 8th IEEE International Conference on ASIC, ASICON 2009 - Changsha, China
Duration: Oct 20 2009Oct 23 2009

Publication series

NameASICON 2009 - Proceedings 2009 8th IEEE International Conference on ASIC

Conference

Conference2009 8th IEEE International Conference on ASIC, ASICON 2009
CountryChina
CityChangsha
Period10/20/0910/23/09

Keywords

  • Envelope-Elimination- and-Restoration (EER)
  • Envelope-Tracking (ET)
  • Mobile WiMAX
  • Polar transmitter
  • Power Amplifier (PA)
  • SiGe

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    Lie, D. Y. C., Li, Y., Lopez, J., Wu, S., & Yang, T. Y. (2009). Design of highly-efficient wideband RF polar transmitters using Envelope-Tracking (ET) for mobile WiMAX/Wibro applications. In ASICON 2009 - Proceedings, 2009 8th IEEE International Conference on ASIC (pp. 347-350). [5351425] (ASICON 2009 - Proceedings 2009 8th IEEE International Conference on ASIC). https://doi.org/10.1109/ASICON.2009.5351425