A 120-160 GHz 28 mW LNA in 70-nm GaAs mHEMT Technology

Che Hao Li, Chien Nan Kuo

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

Abstract

In this paper, a D-band low noise amplifier (LNA) is designed at the operation frequency of 140 GHz in a 70-nm GaAs metamorphic high electron mobility transistor (mHEMT) process. The three-stage cascode and one-stage common-source LNA is proposed to achieve wide bandwidth, low noise and high gain. Impedance matching is designed by using T-shape and dual T-shapes networks in the input, output and interstage matching. Passive devices are electromagnetically characterized at such a high frequency, including series capacitors and bypass networks. The LNA exhibits simulated average gain of 26.7 dB, global noise Figure below 6.1 dB, and bandwidth of 40 GHz. The input and output return loss are better than 13 dB and 9 dB, respectively. The power consumption is only 28 mW. The layout of the circuit occupies the area of 1.85 \times 1.4 mm^{\mathbf{2}}.

Original languageEnglish
Title of host publicationIEEE International Symposium on Circuits and Systems, ISCAS 2022
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages3339-3342
Number of pages4
ISBN (Electronic)9781665484855
DOIs
StatePublished - 2022
Event2022 IEEE International Symposium on Circuits and Systems, ISCAS 2022 - Austin, United States
Duration: 27 May 20221 Jun 2022

Publication series

NameProceedings - IEEE International Symposium on Circuits and Systems
Volume2022-May
ISSN (Print)0271-4310

Conference

Conference2022 IEEE International Symposium on Circuits and Systems, ISCAS 2022
Country/TerritoryUnited States
CityAustin
Period27/05/221/06/22

Keywords

  • broadband
  • D-band
  • GaAs
  • low noise amplifier
  • mHEMT

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