A 35-50 GHz IQ-demodulator in 0.13-μm CMOS technology

Chin Shen Lin, Hong Yeh Chang, Pei Si Wu, Kun You Lin, Huei Wang

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

12 Scopus citations

Abstract

A broadband millimeter-wave (MMW) IQ demodulator is presented in this paper using standard 1P8M 0.13-μm CMOS technology. This IQ demodulator consists of two Gilbert-cell mixers, one 90° broadside coupler, and one Wilkinson power divider. This IQ demodulator has a conversion loss better than 3 dB from 35 to 50 GHz. The magnitude imbalance and image-signal rejection ratio are smaller than 1 dB and greater than 25 dBc, respectively. The 16-QAM baseband signals with 1 MHz symbol rate are used to test the digital demodulation performance. The 16-QAM baseband signals can be demodulated with an EVM of 6.3%. The chip area of this IQ demodulator is 0.9 × 1 mm2 including all testing pads.

Original languageEnglish
Title of host publication2007 IEEE MTT-S International Microwave Symposium Digest
Pages1397-1400
Number of pages4
DOIs
StatePublished - 2007
Event2007 IEEE MTT-S International Microwave Symposium, IMS 2007 - Honolulu, HI, United States
Duration: 3 Jun 20078 Jun 2007

Publication series

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

Conference

Conference2007 IEEE MTT-S International Microwave Symposium, IMS 2007
Country/TerritoryUnited States
CityHonolulu, HI
Period3/06/078/06/07

Keywords

  • CMOS
  • Demodulator
  • Gilbert cell
  • Microwave monolithic integrated circuit (MMIC)
  • Mixer

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