A hybrid Cartesian loop and envelope modulated PA linear transmitter architecture

SI Mann, MA Beach

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

2 Citations (Scopus)
299 Downloads (Pure)

Abstract

A high efficiency and linearity PA solution is presented based on hybrid linearisation schemes that employ complementary techniques to overcome the weakness (or constraints) of either method on its own. In particular, the high linearity of Cartesian loop is combined with the high efficiency of envelope elimination and restoration (EER). The results of a prototype hybrid linearised PA built using digital generation of the phase and amplitude signals for the EER amplifier, and utilizing a digital Cartesian feedback loop are presented. Limitations of the amplitude modulator on system performance are demonstrated using PWM and delta-modulated switching amplifiers
Translated title of the contributionA hybrid Cartesian loop and envelope modulated PA linear transmitter architecture
Original languageEnglish
Title of host publication14th IEEE Personal, Indoor and Mobile Radio Communications, 2003 (PIMRC 2003)
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Pages2721 - 2725
Number of pages5
Volume3
ISBN (Print)0780378229
DOIs
Publication statusPublished - Sep 2003
Event14th International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC) - Beijing, China
Duration: 1 Sep 2003 → …

Conference

Conference14th International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC)
CountryChina
CityBeijing
Period1/09/03 → …

Bibliographical note

Rose publication type: Conference contribution

Sponsorship: Thanks go to Tait Electronics Ltd whom sponsored Steve Mann to do this work through Bristol University

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Keywords

  • Cartesian Loop
  • EER
  • linearization
  • hybrid

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