A 44-GHz high-linearity MMIC medium power amplifier with a low-loss built-in linearizer

Jeng Han Tsai, Hong Yeh Chang, Pei Si Wu, Tian Wei Huang, Huei Wang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

6 Citations (Scopus)

Abstract

This paper presents a 44-GHz MMIC medium power amplifier with a low-loss built-in linearizer using a 0.15-μm GaAs HEMT process. The proposed cold-mode HEMT linearizer can enhance the linearity of the power amplifier with a low insertion loss, a compact die-size, and zero dc consumption. These advantages make the linearizer more suitable for millimeter-wave applications. The experimental results show that the medium power amplifier output spectrum re-growth can be suppressed by 7-9 dB at 44 GHz. In addition, the EVM of the QPSK and 16-QAM modulated signal can be reduced from 4.5% to 3.7% and 10.8% to 7.4% respectively. To the best of our knowledge, this is the first attempt of using pre-distortion linearization techniques in millimeter-wave bands.

Original languageEnglish
Title of host publication2005 IEEE MTT-S International Microwave Symposium Digest
Pages1575-1578
Number of pages4
DOIs
Publication statusPublished - 2005 Dec 1
Event2005 IEEE MTT-S International Microwave Symposium - Long Beach, CA, United States
Duration: 2005 Jun 122005 Jun 17

Publication series

NameIEEE MTT-S International Microwave Symposium Digest
Volume2005
ISSN (Print)0149-645X

Other

Other2005 IEEE MTT-S International Microwave Symposium
CountryUnited States
CityLong Beach, CA
Period05/6/1205/6/17

Keywords

  • Linearizer
  • Millimeter-wave (MMW)
  • Monolithic microwave integrated circuit (MMIC)
  • Nonlinear
  • Power amplifier (PA)

ASJC Scopus subject areas

  • Radiation
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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  • Cite this

    Tsai, J. H., Chang, H. Y., Wu, P. S., Huang, T. W., & Wang, H. (2005). A 44-GHz high-linearity MMIC medium power amplifier with a low-loss built-in linearizer. In 2005 IEEE MTT-S International Microwave Symposium Digest (pp. 1575-1578). [1517001] (IEEE MTT-S International Microwave Symposium Digest; Vol. 2005). https://doi.org/10.1109/MWSYM.2005.1517001