A 253-280 GHz Wide Tuning Range VCO with -3.5 dBm Peak Output Power in 40-nm CMOS

Surajit Kumar Nath, Junghwan Yoo, Jae Sung Rieh, Daekeun Yoon

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

Abstract

This paper presents a wide tuning range push-push voltage-controlled oscillator (VCO) at the sub-THz frequency bands. With the introduction of a novel capacitive splitting feedback (CSF) technique and tunable source degeneration (TSD) network, the proposed VCO can simultaneously archive a wide tuning range while maintaining a high output power. The CSF technique improves the oscillation frequency by reducing the effective transistor capacitances, and a wide tuning range is achieved through the TSD network without employing varactors. The proposed VCO is fabricated in a 40-nm digital CMOS process. It shows a -3.5 dBm peak output power with 1.35% DC-to-RF efficiency and a wide tuning range of 10.16% at a center frequency of 267.2 GHz.

Original languageEnglish
Title of host publicationESSCIRC 2021 - IEEE 47th European Solid State Circuits Conference, Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages299-302
Number of pages4
ISBN (Electronic)9781665437479
DOIs
Publication statusPublished - 2021 Sep 13
Event47th IEEE European Solid State Circuits Conference, ESSCIRC 2021 - Virtual, Online, France
Duration: 2021 Sep 62021 Sep 9

Publication series

NameESSCIRC 2021 - IEEE 47th European Solid State Circuits Conference, Proceedings

Conference

Conference47th IEEE European Solid State Circuits Conference, ESSCIRC 2021
Country/TerritoryFrance
CityVirtual, Online
Period21/9/621/9/9

Keywords

  • CMOS
  • push-push oscillator
  • source degeneration
  • sub-THz
  • VCO

ASJC Scopus subject areas

  • Artificial Intelligence
  • Hardware and Architecture
  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials

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