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An Enhanced Large-Signal Model of GaN HEMT Including Self-Heating Effect

  • Zhuoya Wang
  • , He Guan
  • , Ying Wang
  • , Yongchuan Tang
  • , Longxiang Hou
  • , Yangchao Chen
  • , Guiyu Shen
  • Northwestern Polytechnical University Xian

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

Abstract

An enhanced large-signal model of gallium nitride high electron-mobility transistor (GaN HEMT) including self-heating effect is proposed in this work. The Angelov I-V model is improved by incorporating temperature-dependent parameters, ensuring reliable performance predictions in high-power applications, to accurately describe the drain current (Ids) in both the linear and saturation regions while better capturing the self-heating effects. Additionally, the characterization and modeling of nonlinear gate-source (Cgs) and drain-source (Cgd) capacitances are carried out using the modified Angelov model, further improving the accuracy of the device representation under varying bias conditions. The large-signal model was developed and validated through comprehensive DC, S-parameter, and power efficiency simulations, demonstrating excellent agreement with the characteristics of the CGH40010F device.

Original languageEnglish
Title of host publication2025 IEEE 8th International Conference on Integrated Circuits, Technologies and Applications, ICTA 2025
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages176-179
Number of pages4
ISBN (Electronic)9798331571627
DOIs
StatePublished - 2025
Event2025 IEEE 8th International Conference on Integrated Circuits, Technologies, and Applications, ICTA2025 - Macao, China
Duration: 22 Oct 202524 Oct 2025

Publication series

Name2025 IEEE 8th International Conference on Integrated Circuits, Technologies and Applications, ICTA 2025

Conference

Conference2025 IEEE 8th International Conference on Integrated Circuits, Technologies, and Applications, ICTA2025
Country/TerritoryChina
CityMacao
Period22/10/2524/10/25

Keywords

  • Angelov I-V model
  • GaN HEMT
  • large-signal model
  • nonlinear capacitances
  • self-heating effect

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