UHF-band RFID reader front-end architecture using ring-hybrid for near-field applications

Dong Hoon Park, Eun Cheon Lim, Kai Wei, Hye Mi Park, Sang Bo Min, Jong Won Yu, Moon Que Lee

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

1 Scopus citations

Abstract

In this paper, we present an antenna front-end architecture of UHF RFID reader dedicated for the near field applications. For the TX-RX isolation, the presented architecture adopts the sum-difference hybrid scheme which operates as a difference mode (or balun) and common-mode for TX and RX operations, respectively. The validity of the proposed architecture is demonstrated by applying to the smart shelf which identifies the books with UHF-tags. Compared with the conventional architecture using a directional coupler or a circulator, the test result shows the enhanced performance in sensitivity and multi-tagging ability.

Original languageEnglish
Title of host publicationEuropean Microwave Week 2011
Subtitle of host publication"Wave to the Future", EuMW 2011, Conference Proceedings - 41st European Microwave Conference, EuMC 2011
Pages980-983
Number of pages4
StatePublished - 2011
Event14th European Microwave Week 2011: "Wave to the Future", EuMW 2011 - 41st EuropeanMicrowave Conference, EuMC 2011 - Manchester, United Kingdom
Duration: 10 Oct 201113 Oct 2011

Publication series

NameEuropean Microwave Week 2011: "Wave to the Future", EuMW 2011, Conference Proceedings - 41st European Microwave Conference, EuMC 2011

Conference

Conference14th European Microwave Week 2011: "Wave to the Future", EuMW 2011 - 41st EuropeanMicrowave Conference, EuMC 2011
Country/TerritoryUnited Kingdom
CityManchester
Period10/10/1113/10/11

Keywords

  • Near-field RFID reader
  • RFID front-end
  • Ring-hybrid
  • multi-tagging

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