CMOS 300-GHz 64-QAM transmitter

Kosuke Katayama, Kyoya Takano, Shuhei Amakawa, Shinsuke Hara, Takeshi Yoshida, Minoru Fujishima

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

18 Citations (Scopus)


A QAM-capable 300-GHz transmitter operating above the transistor max, covering a 30-GHz bandwidth with multiple channels was recently reported. A key enabling component was a tripler-based up-conversion mixer called the cubic mixer. This paper theoretically and experimentally studies the S/N characteristics of such a mixer and elucidates the condition for realizing high single-channel data-rate. 30 Gb/s with 32QAM and 21 Gb/s with 64QAM are achieved under optimal conditions, which are faster than the previously reported per-channel data-rate of 17.5 Gb/s.

Original languageEnglish
Title of host publication2016 IEEE MTT-S International Microwave Symposium, IMS 2016
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781509006984
Publication statusPublished - 2016 Aug 9
Externally publishedYes
Event2016 IEEE MTT-S International Microwave Symposium, IMS 2016 - San Francisco, United States
Duration: 2016 May 222016 May 27

Publication series

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


Other2016 IEEE MTT-S International Microwave Symposium, IMS 2016
Country/TerritoryUnited States
CitySan Francisco


  • Cubic mixer
  • J-band
  • THz
  • millimeter-wave
  • tripler

ASJC Scopus subject areas

  • Radiation
  • Condensed Matter Physics
  • Electrical and Electronic Engineering


Dive into the research topics of 'CMOS 300-GHz 64-QAM transmitter'. Together they form a unique fingerprint.

Cite this