Broadband Parallel Doherty Power Amplifier in GaN for 5G Applications

Sumit Bhardwaj, Jennifer Kitchen

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

Abstract

This work presents a wideband parallel symmetric Doherty power amplifier with 300 MHz bandwidth and 8 dB power back-off dynamic range for potential base-station applications. The PA operates from 3.3 to 3.6 GHz with over 9 dB of gain and maintains an output power of 45 dBm at 3dB gain compression. Simulation results show peak drain efficiency from 67% to 73% across the frequency band, and 46% to 54% efficiency across the band at 8 dB output power back-off. The benefits and drawbacks of designing a parallel Doherty amplifier compared to a conventional Doherty are highlighted within this paper.

Original languageEnglish (US)
Title of host publication2019 IEEE Topical Conference on RF/Microwave Power Amplifiers for Radio and Wireless Applications, PAWR 2019
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781538659472
DOIs
StatePublished - May 6 2019
Event2019 IEEE Topical Conference on RF/Microwave Power Amplifiers for Radio and Wireless Applications, PAWR 2019 - Orlando, United States
Duration: Jan 20 2019Jan 23 2019

Publication series

Name2019 IEEE Topical Conference on RF/Microwave Power Amplifiers for Radio and Wireless Applications, PAWR 2019

Conference

Conference2019 IEEE Topical Conference on RF/Microwave Power Amplifiers for Radio and Wireless Applications, PAWR 2019
CountryUnited States
CityOrlando
Period1/20/191/23/19

Keywords

  • Base station
  • Doherty
  • gallium nitride
  • load modulation
  • power amplifier
  • saturated output power
  • transmitter

ASJC Scopus subject areas

  • Computer Science (miscellaneous)
  • Electrical and Electronic Engineering
  • Condensed Matter Physics
  • Information Systems

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  • Cite this

    Bhardwaj, S., & Kitchen, J. (2019). Broadband Parallel Doherty Power Amplifier in GaN for 5G Applications. In 2019 IEEE Topical Conference on RF/Microwave Power Amplifiers for Radio and Wireless Applications, PAWR 2019 [8708727] (2019 IEEE Topical Conference on RF/Microwave Power Amplifiers for Radio and Wireless Applications, PAWR 2019). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/PAWR.2019.8708727