A Low Phase Noise Wideband Voltage-Controlled Oscillator Applied in Frequency Synthesizers

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

Abstract

A wideband LC voltage-controlled oscillator (VCO) based on a switched-capacitor array structure is designed using a 0. 18 μm BiCMOS process. The effects of key parameters on phase noise are also analyzed. Based on the analysis of the quality factor of the LC resonant loop in the VCO, the resonant loop is optimized and the quality factor of the resonant loop is improved to reduce the phase noise of the VCO. The noise filtering technique is used to reduce the influence of the tail current source noise on the phase noise of the VCO. The post-simulation results show that the designed voltage-controlled oscillator operates within a frequency range of 6.44GHz to 8.03 GHz, achieving a phase noise of -119.4 dBc/Hz at 8.03 GHz with a frequency offset of 1 MHz.

Original languageEnglish
Title of host publicationProceedings - 2024 17th International Congress on Image and Signal Processing, BioMedical Engineering and Informatics, CISP-BMEI 2024
EditorsQingli Li, Yan Wang, Lipo Wang
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9798331507398
DOIs
StatePublished - 2024
Event17th International Congress on Image and Signal Processing, BioMedical Engineering and Informatics, CISP-BMEI 2024 - Shanghai, China
Duration: 26 Oct 202428 Oct 2024

Publication series

NameProceedings - 2024 17th International Congress on Image and Signal Processing, BioMedical Engineering and Informatics, CISP-BMEI 2024

Conference

Conference17th International Congress on Image and Signal Processing, BioMedical Engineering and Informatics, CISP-BMEI 2024
Country/TerritoryChina
CityShanghai
Period26/10/2428/10/24

Keywords

  • noise filtering
  • phase noise
  • switched-capacitor array
  • wideband LC-VCO

Fingerprint

Dive into the research topics of 'A Low Phase Noise Wideband Voltage-Controlled Oscillator Applied in Frequency Synthesizers'. Together they form a unique fingerprint.

Cite this