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 proceedingConference Contribution (Conference Proceeding)

1 Citation (Scopus)
105 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 20228 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)
Period6/12/228/12/22

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.

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