Accurate non-linear large signal physics-based modeling for Ka-band GaN power amplifier design with ASM-HEMT

Jason Hodges, Sayed Ali Albahrani, Bryan Schwitter, Sourabh Khandelwal

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

6 Citations (Scopus)

Abstract

This paper presents for the first-time a physics-based non-linear large signal model for Ka-band GaN power amplifier design using the new industry standard ASM-HEMT compact model. A novel methodology combining the effectiveness and accuracy of modeling the intrinsic device region with ASM-HEMT, and distributed effects at Ka-band with electromagnetic (EM) simulations is developed. The intrinsic semiconductor region for each finger of the GaN HEMT device is modeled with ASM-HEMT, and in a multi-finger device, the single finger model is coupled with EM simulations capturing distributed effects accurately. The developed non-linear model shows excellent accuracy with measured non-linear data for a commercial GaN-HEMT device, and with measurements performed on a Ka-band MMIC power amplifier.

Original languageEnglish
Title of host publication2021 IEEE/MTT-S International Microwave Symposium
Place of PublicationPiscataway, NJ
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Pages349-351
Number of pages3
ISBN (Electronic)9781665403078
ISBN (Print)9781665431415
DOIs
Publication statusPublished - 2021
Event2021 IEEE MTT-S International Microwave Symposium, IMS 2021 - Virtual, Atlanta, United States
Duration: 7 Jun 202125 Jun 2021

Publication series

Name
ISSN (Print)0149-645X
ISSN (Electronic)2576-7216

Conference

Conference2021 IEEE MTT-S International Microwave Symposium, IMS 2021
Country/TerritoryUnited States
CityVirtual, Atlanta
Period7/06/2125/06/21

Keywords

  • Compact models
  • GaN HEMTs
  • Power Amplifiers
  • ASM-HEMT

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