Waveform engineering applied to linear-efficient PA design

J Lees, M Akmal, S Ben Smida, S Woodington, S Cripps, J Benedikt, KA Morris, MA Beach, JP McGeehan, P Tasker

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

9 Citations (Scopus)
455 Downloads (Pure)


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.
Translated title of the contributionWaveform engineering applied to linear-efficient PA design
Original languageEnglish
Title of host publicationIEEE 11th Annual Wireless and Microwave Technology Conference 2010 (WAMICON), Melbourne, FL
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Pages1 - 5
Number of pages5
ISBN (Print)9781424466887
Publication statusPublished - Apr 2010
Event11th Annual Wireless and Microwave Technology Conference (WAMICON) - Melbourne, FL, United States
Duration: 1 Apr 2010 → …


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

Bibliographical note

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.

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


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