Ferromagnetic Resonance Identification (FMR-ID) under Low Magnetic Field for sub-mmWave RFID

Md Toaha Anas, Alex Wege, Allison N Harpel, Yicong Chen, Bethanie J.H. Stadler, Rhonda Franklin

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

Abstract

A method for ferromagnetic resonance identification (FMR-ID), using magnetic nanowires (MNWs) made from cobalt-iron, is presented for sub-mmWave RFID applications. For use in a tag, a circuit comprised of a MNW chip with copper back placed above a grounded coplanar waveguide (GCPW) line is evaluated. According to simulation, minimal mismatch in the GCPW line and maximum FMR absorption in the MNW chip occurs when it is centered over the gap of the GCPW line. Five unique DC magnetic field strengths, between 0 and 0.2 T, have been applied perpendicular to the MNW chip. The detected FMR absorption is observed at five sub-mmWave frequencies between 20 and 30 GHz. This approach lays the foundation for five-bit tag identification addressing.

Original languageEnglish (US)
Title of host publication2024 IEEE Wireless and Microwave Technology Conference, WAMICON 2024
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9798350344943
DOIs
StatePublished - 2024
Event2024 IEEE Wireless and Microwave Technology Conference, WAMICON 2024 - Clearwater, United States
Duration: Apr 15 2024Apr 16 2024

Publication series

Name2024 IEEE Wireless and Microwave Technology Conference, WAMICON 2024

Conference

Conference2024 IEEE Wireless and Microwave Technology Conference, WAMICON 2024
Country/TerritoryUnited States
CityClearwater
Period4/15/244/16/24

Bibliographical note

Publisher Copyright:
© 2024 IEEE.

Keywords

  • anodized aluminum oxide
  • cobalt-iron nanowires
  • ferromagnetic resonance
  • FMR-ID
  • grounded coplanar waveguide
  • RFID

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