A 71-86 GHz Cascaded Harmonic Enhanced Tripler with-69 dBc Fundamental and-66 dBc Second Harmonic Suppression

Zhaoqi Chen, Chunqi Shi, Yuri Lu, Runxi Zhang, Hao Deng, Jinghong Chen

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

1 Scopus citations

Abstract

This paper proposed a cascaded harmonic enhanced injection-locked frequency tripler fabricated in a 40-nm CMOS process. In order to suppress the fundamental signal and the second harmonic signal, an injection-locked doubler is explored, and then the obtained ×2 frequency signal is mixed with the fundamental signal to realize the third harmonic signal and then the third harmonic signal is injected into the tank of the injection-locked frequency selection network to improve the output power. The tripler achieves a fundamental suppression over-69 dBc and a second harmonic suppression over-66 dBc. The output power over the entire locking range from 71.5 to 86.7 GHz is larger than 5.5 dBm. The chip occupies a die area of 0.25 × 0.35mm2 and dissipates 20 mW of power.

Original languageEnglish
Title of host publicationIEEE International Symposium on Circuits and Systems, ISCAS 2022
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages3347-3350
Number of pages4
ISBN (Electronic)9781665484855
DOIs
StatePublished - 2022
Event2022 IEEE International Symposium on Circuits and Systems, ISCAS 2022 - Austin, United States
Duration: 27 May 20221 Jun 2022

Publication series

NameProceedings - IEEE International Symposium on Circuits and Systems
Volume2022-May
ISSN (Print)0271-4310

Conference

Conference2022 IEEE International Symposium on Circuits and Systems, ISCAS 2022
Country/TerritoryUnited States
CityAustin
Period27/05/221/06/22

Keywords

  • Frequency Tripler
  • Harmonic Enhancement
  • Harmonic Suppression
  • Injection-Locked

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