Semi-passive RFID TAGs with double loop antennae arranged as a shifted gate system for stability optimization under delayed electromagnetic interferences

Ofer Aluf

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

Abstract

In this article, we discuss the crucial subject of Semi-passive RFID TAGs system stability. Semi-passive TAGs with double loop antennae arranged as a shifted gate system for stability optimization under delayed electromagnetic interferences. The double loop antenna is employed due to the fact that it consists of two parallel loops - a primary one and secondary one. We define Vi1(t) and Vi2(t) as the voltages on double loop antennae as a function of time. Vi1(t) is the voltage as a function of time time on the primary loop and Vi2(t) is the voltage as a function of time on the secondary loop. The index (i) stands for the first gate (i=1) and second gate (i=2). Due to electromagnetic interference, there are differences in time delays with respect to gate antenna's first and second loop voltages and voltages derivatives. The delayed voltages are Vi1(t- τ1) and Vi2(t-τ2) respectively (τ1 ≠ τ2) and delayed voltages derivatives are dVi1(t-Δ1)/dt, dVi2(t- Δ2)/dt respectively (Δ1 ≠ Δ2; τ1 ≥ 0; τ2 ≥ 0; Δ1, Δ2 ≥ 0).

Original languageEnglish
Title of host publication2013 IEEE International Conference on Microwaves, Communications, Antennas and Electronic Systems, COMCAS 2013
DOIs
StatePublished - 1 Dec 2013
Externally publishedYes
Event2013 IEEE International Conference on Microwaves, Communications, Antennas and Electronic Systems, COMCAS 2013 - Tel Aviv, Israel
Duration: 21 Oct 201323 Oct 2013

Publication series

Name2013 IEEE International Conference on Microwaves, Communications, Antennas and Electronic Systems, COMCAS 2013

Conference

Conference2013 IEEE International Conference on Microwaves, Communications, Antennas and Electronic Systems, COMCAS 2013
Country/TerritoryIsrael
CityTel Aviv
Period21/10/1323/10/13

Keywords

  • Bifurcation
  • Delay Differential Equations (DDEs)
  • Double loop antenna
  • Shifted Gate antennae
  • Stability

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