A three-stage Ka Band PHEMT wideband amplifier MMIC

C. W. Huang, S. J. Chang, W. Wu, C. L. Wu, C. S. Chang

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


In this paper, a Ka-Band 24-dBm AlGaAs/InGaAs/GaAs PHEMT MMIC power amplifier is demonstrated. This three-stage amplifier is designed to fully match for 50Ω input and output impedances. With 4 V and 250-mA DC bias, we achieve 15-dB small-signal gain, 24 dBm P-1dB 24.3% PAE, and better than 10-dB input return loss from 31 to 37 GHz.

Original languageEnglish
Pages (from-to)277-280
Number of pages4
JournalMicrowave and Optical Technology Letters
Issue number4
Publication statusPublished - 2004 Aug 20

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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