56-Gbit/s 16-QAM wireless link with 300-GHz-band CMOS transmitter

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

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

26 Citations (Scopus)


The 300-GHz band enables ultrahigh-speed wireless communication because of its vast frequency range. We present a wireless link with a 300-GHz-band CMOS transmitter that improves the system signal-to-noise ratio (SNR) by using a frequency-doubler-based subharmonic mixer called a 'square mixer' and an architecture with image and local oscillator (LO) suppression. It achieved wireless digital transmission at 56 Gbit/s over 5 cm with 16-QAM. In addition, we compare the performance of wireless links using a figure-of-merit (FoM). This wireless link has an approximately 7.5 times higher FoM than a recently reported wireless link based on a CMOS transmitter.

Original languageEnglish
Title of host publication2017 IEEE MTT-S International Microwave Symposium, IMS 2017
PublisherInstitute of Electrical and Electronics Engineers Inc.
Number of pages4
ISBN (Electronic)9781509063604
Publication statusPublished - 2017 Oct 4
Externally publishedYes
Event2017 IEEE MTT-S International Microwave Symposium, IMS 2017 - Honololu, United States
Duration: 2017 Jun 42017 Jun 9

Publication series

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


Other2017 IEEE MTT-S International Microwave Symposium, IMS 2017
Country/TerritoryUnited States


  • 300-GHz band
  • CMOS
  • Quadrature-amplitude modulation
  • Terahertz
  • Wireless link

ASJC Scopus subject areas

  • Radiation
  • Condensed Matter Physics
  • Electrical and Electronic Engineering


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