A 47 % Fractional Bandwidth Sequential Power Amplifier with High Back-off Efficiency

Sarmad H O Ozan, Alex R Pitt, Manish Nair, Mark A Beach, Tommaso Cappello

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

1 Citation (Scopus)
154 Downloads (Pure)

Abstract

This paper presents a 2.9-4.7 GHz sequential power amplifier (SPA) based on two 10 W GaN high electron mobility transistors (HEMTs). A wideband combiner and an input splitter which establish an optimal relative phase for achieving the maximum efficiency are designed. The proposed SPA attains a bandwidth between 2.9 GHz and 4.7 GHz (47 % fractional bandwidth) with efficiency enhancement at output power back-off (OPBO). The measured results over the band of operation show a drain efficiency of 43 % - 56 % at maximum output power of 40 dBm - 42 dBm, and of 36 % - 52 % at 6 dB OPBO.
Original languageEnglish
Title of host publication2022 4th IEEE Middle East and North Africa COMMunications Conference, MENACOMM 2022
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Pages37-42
Number of pages6
ISBN (Electronic)978-1-6654-9411-3
ISBN (Print)978-1-6654-9412-0
DOIs
Publication statusPublished - 2 Jan 2023
Event2022 4th IEEE Middle East and North Africa COMMunications Conference (MENACOMM) -
Duration: 6 Dec 2022 → 8 Dec 2022

Publication series

Name2022 4th IEEE Middle East and North Africa COMMunications Conference, MENACOMM 2022

Conference

Conference2022 4th IEEE Middle East and North Africa COMMunications Conference (MENACOMM)
Period6/12/22 → 8/12/22

Bibliographical note

Funding Information:
This work is funded by EPSRC CDT in Communications EP/L016656/1 with research affiliated to EPSRC Prosperity Partnership SWAN (EP/T005572/1).

Publisher Copyright:
© 2022 IEEE.

Access to Document

  • Full-text PDF (accepted author manuscript)

    This is the accepted author manuscript (AAM). The final published version (version of record) is available online via IEEE at 10.1109/MENACOMM57252.2022.9998195. Please refer to any applicable terms of use of the publisher.

    Accepted author manuscript, 2.19 MB

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    • SWAN (Secure Wireless Agile Networks) EPSRC Prosperity Partnership

      Beach, M. A. (Principal Investigator), Sandell, M. (Co-Principal Investigator), Hilton, G. (Co-Investigator), Austin, A. C. M. (Co-Investigator), Armour, S. M. D. (Co-Investigator), Haine, J. L. (Collaborator), Wales, S. W. (Collaborator), Luke, J. (Collaborator), Rogoyski, A. (Collaborator), Zhu, Z. (Collaborator), Watkins, G. T. (Collaborator), Kalokidou, V. (Researcher), Cappello, T. (Co-Investigator), Arabi, E. (Researcher), Nair, M. (Researcher), Ma, J. (Student), Wilson, S. (Student), Ozan, S. H. O. (Student), Prior, R. E. (Administrator), Xenos, E. (Student), Kayal, S. (Student), Chin, W. H. (Co-Principal Investigator) & Morris, K. A. (Co-Investigator)

      1/02/20 → 31/01/25

      Project: Research, Parent

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