A 60GHz digitally controlled 4-bit phase shifter with 6-ps group delay deviation

Yun Chieh Chiang, Wei Tsung Li, Jeng-Han Tsai, Tian Wei Huang

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

19 Citations (Scopus)

Abstract

A 57-64 GHz 4-bit switch type phase shifter with low group delay deviation and low loss flatness using 90nm low power CMOS technology is presented in this paper. The proposed switched delay networks are using transmission lines to avoid process variation of small-size capacitors. It is also measured with excellent insertion loss flatness of ±0.8dB for a specific phase shifting state, across 57-64 GHz. For all 16 states, the insertion loss is 12.5 ± 2dB including pad loss at 60 GHz and the return loss is >10dB over 57-64 GHz. The total chip size is 0.28 mm 2, excluding pads with 0-mW dc power consumption. The phase shifter has low group-delay deviation (phase-distortion) of +/6 ps from 57-63 GHz. To the best of our knowledge, this phase shifter presents the best FoM among V-band phase shifters.

Original languageEnglish
Title of host publicationIMS 2012 - 2012 IEEE MTT-S International Microwave Symposium
DOIs
Publication statusPublished - 2012 Oct 3
Event2012 IEEE MTT-S International Microwave Symposium, IMS 2012 - Montreal, QC, Canada
Duration: 2012 Jun 172012 Jun 22

Other

Other2012 IEEE MTT-S International Microwave Symposium, IMS 2012
CountryCanada
CityMontreal, QC
Period12/6/1712/6/22

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Keywords

  • CMOS
  • Group delay
  • Phase shifter
  • Switch type

ASJC Scopus subject areas

  • Radiation
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

Cite this

Chiang, Y. C., Li, W. T., Tsai, J-H., & Huang, T. W. (2012). A 60GHz digitally controlled 4-bit phase shifter with 6-ps group delay deviation. In IMS 2012 - 2012 IEEE MTT-S International Microwave Symposium [6259494] https://doi.org/10.1109/MWSYM.2012.6259494