A 25-37GHz VCO Employing Stacked-Coupled Switched Inductor and Co-Tuned Buffer in 55nm CMOS for Multi-Band 5G mmW Applications

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Abstract

This paper presents a mmW voltage-controlled oscillator (VCO) employing stacked-coupled switched differential inductor (SSDI) and hybrid analog-digital varactor array (HVA) to simultaneously achieve wide tuning range and low phase noise. A frequency co-tuned VCO buffer is also developed to minimize the VCO output power variation. Fabricated in a 55-nm CMOS process, the VCO achieves an ultra-wide frequency tuning range of 41.14% (24.48 to 37.16 GHz) and a low phase noise of-124.91 dBc/Hz at 10 MHz offset. The FoMT is-192.67 dBc/Hz and the output power variation is less than 3 dB over the entire tuning range.

Original languageEnglish
Title of host publication2021 IEEE 21st Topical Meeting on Silicon Monolithic Integrated Circuits in RF Systems, SiRF 2021
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages37-39
Number of pages3
ISBN (Electronic)9780738143644
DOIs
StatePublished - 17 Jan 2021
Event21st IEEE Topical Meeting on Silicon Monolithic Integrated Circuits in RF Systems, SiRF 2021 - Virtual, San Diego, United States
Duration: 17 Jan 202122 Jan 2021

Publication series

Name2021 IEEE 21st Topical Meeting on Silicon Monolithic Integrated Circuits in RF Systems, SiRF 2021

Conference

Conference21st IEEE Topical Meeting on Silicon Monolithic Integrated Circuits in RF Systems, SiRF 2021
Country/TerritoryUnited States
CityVirtual, San Diego
Period17/01/2122/01/21

Keywords

  • Voltage-controlled oscillator (VCO)
  • phase noise
  • stacked-coupled switched differential inductor
  • tuning range

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