60GHz CMOS divide-by-5 injection-locked frequency divider with an open-stub-loaded floating-source injector

Ming Wei Li, Hsin Chih Kuo, Tzuen-Hsi Huang, Huey-Ru Chuang

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

7 Citations (Scopus)

Abstract

A new injector topology is adopted for the design of a 60-GHz CMOS divide-by-5 injection-locked frequency divider (ILFD). The topology is based on a distributed-element harmonic termination by an open-stub structure connected to the floating source end of the differential injection pair. With this topology together with an N-MOS cross-coupled oscillator core, the supply voltage and power consumption of the divider can be greatly reduced. A test circuit is implemented in a 90-nm CMOS process. With the added λ/4 open stub, the simulated frequency locking range of the designed ILFD with the distributed-element harmonic termination scheme has been greatly extended over 70%. The measured power consumption is 3.75 mW at a supply voltage of 0.6 V and the locking range is 4.1 GHz. A good figure of merit (FOM) of 69.4 is achieved.

Original languageEnglish
Title of host publication2011 IEEE Radio Frequency Integrated Circuits Symposium, RFIC 2011 - Digest of Papers
DOIs
Publication statusPublished - 2011
Event2011 IEEE Radio Frequency Integrated Circuits Symposium, RFIC 2011 - Baltimore, MD, United States
Duration: 2011 Jun 52011 Jun 7

Other

Other2011 IEEE Radio Frequency Integrated Circuits Symposium, RFIC 2011
CountryUnited States
CityBaltimore, MD
Period11-06-0511-06-07

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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