Analysis of Series and Shunt DC Combination under Nonuniform RF Inputs Using an Equivalent Resistance Method

Jun Qi Yang, Si Ping Gao, Hao Zhang, Yong Xin Guo

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

Abstract

Multiple rectifiers (rectennas or arrays) have been widely adopted in nowadays wireless power transfer (WPT) and wire-less energy harvesting (WEH) systems to receive/harvest as much power as possible from multiple power sources. However, few studies focused on the overall RF-to-dc efficiency when combining the DC outputs together under nonuniform RF power inputs. In this paper, we analyze the DC combination problem using an equivalent resistance method for both the series and the shunt combining topologies. We also compare and contrast these two topologies and give some recommendations. ADS harmonic balance solver is employed to verify the proposed analysis method and those recommendations.

Original languageEnglish
Title of host publication2022 IEEE MTT-S International Wireless Symposium, IWS 2022 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781665481977
DOIs
StatePublished - 2022
Externally publishedYes
Event9th IEEE MTT-S International Wireless Symposium, IWS 2022 - Harbin, China
Duration: 12 Aug 202215 Aug 2022

Publication series

Name2022 IEEE MTT-S International Wireless Symposium, IWS 2022 - Proceedings

Conference

Conference9th IEEE MTT-S International Wireless Symposium, IWS 2022
Country/TerritoryChina
CityHarbin
Period12/08/2215/08/22

Keywords

  • equivalent resistance method
  • Multiple RF rectifiers
  • nonuniform input power
  • series and shunt DC combination

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