Comparison of Two Noise Equivalent Circuit Models for GaAs and InP High-Electron-Mobility Transistors

  • Ao Zhang
  • , Jianjun Gao*
  • *Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

This article presented a novel approach for the modeling of noise behavior for GaAs and InP high-electron-mobility transistors (HEMTs). Closed-form expressions for minimum noise figure Fmin, noise resistance Rn, optimum source conductance Gopt, and optimum source susceptance Bopt based on the noise equivalent circuit model are derived. The model is verified by measurements of the four noise parameters of a GaAs HEMT up to 26 GHz and an InP HEMT up to 40 GHz. The W-band low noise amplifier (LNA) is designed to validate the noise model for HEMT.

Original languageEnglish
Pages (from-to)154-161
Number of pages8
JournalIEEE Transactions on Electron Devices
Volume72
Issue number1
DOIs
StatePublished - 2025

Keywords

  • Equivalent circuit model
  • high-electron-mobility transistor (HEMT)
  • noise model
  • parameter extraction

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