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Design of a current controlling circuit integrated with a power amplifier in gallium nitride process

Benny Wu*, Sudipta Chakraborty, Simon J. Mahon, Michael Heimlich

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contributionpeer-review

Abstract

There is an increasing demand for the gallium nitride-based power amplifiers for different applications. A current controlling circuit integrated with the power amplifier on the same chip is proposed in this paper, for the purpose of monitoring the reliable operation of the power amplifier. The designed broadband differential amplifier, which is the important building block of the controlling circuit, has a gain of 43 dB and a bandwidth up to 0.1 GHz. The amplifier is operated from a ± 28 V supply which results in a higher peak-to-peak swing than a CMOS based design.

Original languageEnglish
Title of host publication2023 5th Australian Microwave Symposium (AMS)
Place of PublicationPiscataway, NJ
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Pages39-40
Number of pages2
ISBN (Electronic)9798350399363
ISBN (Print)9798350399370
DOIs
Publication statusPublished - 2023
Event5th Australian Microwave Symposium, AMS 2023 - Melbourne, Australia
Duration: 16 Feb 202317 Feb 2023

Conference

Conference5th Australian Microwave Symposium, AMS 2023
Country/TerritoryAustralia
CityMelbourne
Period16/02/2317/02/23

Keywords

  • Gallium nitride
  • power amplifier
  • differential amplifier
  • bandwidth

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