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Waveform engineering applied to linear-efficient PA design

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

Original languageEnglish
Title of host publicationIEEE 11th Annual Wireless and Microwave Technology Conference 2010 (WAMICON), Melbourne, FL
Publisher or commissioning bodyInstitute of Electrical and Electronics Engineers (IEEE)
Publication dateApr 2010
Pages1 - 5
Number of pages5
ISBN (Print)9781424466887
DOIs
StatePublished

Conference

Conference11th Annual Wireless and Microwave Technology Conference (WAMICON)
CountryUnited States
CityMelbourne, FL
Period1/04/10 → …

Abstract

Low-frequency, baseband effects in Power Amplifiers can become particularly important when steps are taken to improve operational efficiency through the application of `envelope' based approaches such as Envelope Elimination and Restoration (EER) and Envelope Tracking (ET). The aim of this paper is to demonstrate how a broadband modulated time-domain measurement system, when used in combination with active IF load-pull, can be employed to gain valuable insight into the behaviour of high-frequency power transistors whilst operating under modulated conditions. Also considered is the interesting idea of how PA linearity can be improved using the very mechanisms that are employed to improve efficiency.

Additional information

Rose publication type: Conference contribution Sponsorship: This work has been carried out as part of EPSRC grant EP1F033702/I. The authors would also like to thank CREE for supporting this activity and supplying the devices; specifically Ray Pengelly, Dr. Chris Harris and Mr. Simon Wood. Terms of use: Copyright © 2009 IEEE. Reprinted from IEEE 11th Annual Wireless and Microwave Technology Conference (WAMICON), 2010. This material is posted here with permission of the IEEE. Such permission of the IEEE does not in any way imply IEEE endorsement of any of the University of Bristol's products or services. Internal or personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution must be obtained from the IEEE by writing to pubs-permissions@ieee.org. By choosing to view this document, you agree to all provisions of the copyright laws protecting it.

Documents

DOI

Research areas

  • amplifier distortion, amplifier linearity, amplifier efficiency, modulation, power amplifier

Event

11th Annual Wireless and Microwave Technology Conference (WAMICON)

Duration1 Apr 2010 → …
CountryUnited States
CityMelbourne, FL

Event: Conference

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