Null mitigation of planar RFID tag antennas

Sika Shrestha, Nemai Chandra Karmakar

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

Abstract

Printed monopole and dipole antennas for RFID tags have inherent nulls in their radiation patterns. These nulls in radiation patterns limit tag reading even if a circularly polarized reader antenna is used. The paper presents ten various conventional and novel printed antennas to improve the nulls for maximum visibility of the tag. The investigation reveals that highest null improvement of 25 dB in monopole and 24.6 dB in dipole is possible using non-conventional
monopole and dipole.
Original languageEnglish
Title of host publication2015 International Symposium on Antennas & Propagation (ISAP)
EditorsChristophe Fumeaux, Ananda Mohan Sanagavarapu, Karu Esselle, Amin Abbosh
Place of PublicationPiscataway NJ USA
PublisherIEEE, Institute of Electrical and Electronics Engineers
Pages889 - 892
Number of pages4
ISBN (Print)9784885523038
Publication statusPublished - 2015
EventIEEE International Symposium on Antennas and Propagation 2015 - Wrest Point Hotel, Hobart, Australia
Duration: 9 Nov 201512 Nov 2015
https://ieeexplore.ieee.org/xpl/conhome/7442673/proceeding (Proceedings)

Conference

ConferenceIEEE International Symposium on Antennas and Propagation 2015
Abbreviated titleISAP 2015
Country/TerritoryAustralia
CityHobart
Period9/11/1512/11/15
Internet address

Keywords

  • RFID tag antennas
  • antenna patterns

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