High-permittivity ceramic components, being traditional building blocks of dielectric resonant antennas, are proposed and demonstrated to serve as efficient elements in radio frequency identification (RFID). While common RFID- tags utilize conduction currents in metal wires, our concept relies on excitation of high-quality factor resonant modes, activating a non-resonant metal ring, functionalized with an RFID chip. Our cascaded scheme demonstrates several advantages over conventional approaches, including footprint miniaturization and reading range enhancement of tags. In particular, high permittivity ceramic (ε∼100) cylinder-based tags were shown to be detected from 25% larger distance in comparison to commercial tags.

1.
S. B.
Miles
,
S. E.
Sarma
, and
J. R.
Williams
,
RFID Technology and Applications
.
Cambridge University Press
,
2011
.
2.
R. F.
Harrington
,
Time-Harmonic Electromagnetic Fields
, 2nd ed.
New York
:
Wiley-IEEE Press
,
2001
.
3.
Rao
,
K. V. S.
,
Nikitin
,
P. V.
, &
Lam
,
S. F.
Antenna design for UHF RFID tags: A review and a practical application
.
IEEE Transactions on Antennas and Propagation
,
53
,
3870
3876
(
2005
).
4.
S. S.
Srikant
and
R. P.
Mahapatra
,
“Read Range of UHF Passive RFID
,”
Int. J. Comput. Theory Eng.
, pp.
323
325
, (
2010
).
5.
P. V.
Nikitin
and
K. V. S.
Rao
,
“Theory and measurement of backscattering from RFID tags
,”
IEEE Antennas Propag. Mag.
,
48
, no.
6
,
212
218
(
2006
).
6.
J. C.
Bolomey
,
S.
Capdevila
,
L.
Jofre
, and
J.
Romeu
,
“Electromagnetic modeling of RFID-modulated scattering mechanism. Application to tag performance evaluation
,”
Proc. IEEE
,
98
, no.
9
,
1555
1569
, (
2010
).
This content is only available via PDF.
You do not currently have access to this content.