TY - GEN

T1 - Semi-passive RFID TAGs with double loop antennae arranged as a shifted gate system for stability optimization under delayed electromagnetic interferences

AU - Aluf, Ofer

PY - 2013/12/1

Y1 - 2013/12/1

N2 - 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).

AB - 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).

KW - Bifurcation

KW - Delay Differential Equations (DDEs)

KW - Double loop antenna

KW - Shifted Gate antennae

KW - Stability

UR - http://www.scopus.com/inward/record.url?scp=84893230636&partnerID=8YFLogxK

U2 - 10.1109/COMCAS.2013.6685230

DO - 10.1109/COMCAS.2013.6685230

M3 - Conference contribution

AN - SCOPUS:84893230636

SN - 9781467357562

T3 - 2013 IEEE International Conference on Microwaves, Communications, Antennas and Electronic Systems, COMCAS 2013

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

T2 - 2013 IEEE International Conference on Microwaves, Communications, Antennas and Electronic Systems, COMCAS 2013

Y2 - 21 October 2013 through 23 October 2013

ER -