A 17.5-dBm Output Power 11.2% DC-to-RF Efficiency Low Phase Noise CMOS Quadrature Voltage-Controlled Oscillator

Kuan Hsueh Lu, Guan Lin Huang, Hong Yeh Chang

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

Abstract

This paper describes a high-power high-efficiency quadrature voltage-controlled oscillator (QVCO) in 0.18 μ m CMOS process. Four cascode gain cells with back-gate coupling are employed in the core of the QVCO to achieve high power and high efficiency. When the oscillation frequency is from 9.32 to 9.5 GHz., the proposed QVCO demonstrates a maximum output power of 17.5 dBm., an efficiency of 11.2% and a phase noise of - 125.7 dBc/Hz at 1 MHz offset. The measured minimum amplitude and phase errors are within 0.28 dB and 0.6°, respectively. The work has the highest output power among all the reported CMOS QVCOs., and also it achieves excellent figure-of-merits.

Original languageEnglish
Title of host publicationProceedings of the 2018 IEEE/MTT-S International Microwave Symposium, IMS 2018
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1434-1437
Number of pages4
ISBN (Print)9781538650677
DOIs
StatePublished - 17 Aug 2018
Event2018 IEEE/MTT-S International Microwave Symposium, IMS 2018 - Philadelphia, United States
Duration: 10 Jun 201815 Jun 2018

Publication series

NameIEEE MTT-S International Microwave Symposium Digest
Volume2018-June
ISSN (Print)0149-645X

Conference

Conference2018 IEEE/MTT-S International Microwave Symposium, IMS 2018
Country/TerritoryUnited States
CityPhiladelphia
Period10/06/1815/06/18

Keywords

  • CMOS
  • high efficiency
  • high output power
  • low phase noise
  • microwave
  • oscillator
  • quadrature
  • VCO

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