A Broadband Active Balun with Inductor-Less Active Peaking and Imbalance Correction

Keisuke Kawahara, Yohtaro Umeda, Kyoya Takano

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

Abstract

This paper presents an accurate inductor-less broadband active balun. The gain and phase deviations of the balun are corrected by the magnitude and phase concurrent correction technique (MPCCT). Besides, the gain-bandwidth product is improved by 1.39 times using an active peaking technique embedded in the MPCCT. The relationship between the common-mode rejection ratio (CMRR), conversion gain, and stability is revealed by detailed analyses and an additional capacitor improves the CMRR and conversion gain at high frequencies. The proposed balun was assessed by post-layout simulation. The gain and phase deviations were smaller than 0.04 dB and 0.5° from DC to 8.9 GHz, respectively. The proposed balun achieved a core area of 0.0058 mm2, which is smaller than the previous works to the best of the authors' knowledge.

Original languageEnglish
Title of host publication2021 IEEE International Midwest Symposium on Circuits and Systems, MWSCAS 2021 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages749-752
Number of pages4
ISBN (Electronic)9781665424615
DOIs
Publication statusPublished - 9 Aug 2021
Event2021 IEEE International Midwest Symposium on Circuits and Systems, MWSCAS 2021 - Virtual, East Lansing, United States
Duration: 9 Aug 202111 Aug 2021

Publication series

NameMidwest Symposium on Circuits and Systems
Volume2021-August
ISSN (Print)1548-3746

Conference

Conference2021 IEEE International Midwest Symposium on Circuits and Systems, MWSCAS 2021
Country/TerritoryUnited States
CityVirtual, East Lansing
Period9/08/2111/08/21

Keywords

  • Active baluns
  • RFICs
  • active peaking
  • baluns
  • imbalance correction
  • phase splitters

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