  Radio frequency identification (RFID) is a mature technology, which allows
performing contactless data readout via wireless communication links. While
communication protocols in this field are subject to regulations, there is a
room of opportunities to improve the hardware realization of antennas devices,
which support the technology. In particular, readout range extension and
miniaturization of passive RFID tags is an important objective with far going
impact on retail, security, IoT, and many others. Here we introduce a new
concept of high-permittivity ceramic tag, which relies on different physical
principles. Instead of using conduction currents in metallic wires to drive
electronic chips and radiate electromagnetic waves, high permittivity
components rely on an efficient excitation of displacement currents. Those are
efficiently converted to conduction currents, powering a memory chip. The
practical aspect of this approach is improved robustness to environmental
fluctuations, footprint reduction, and readout range extension. In particular,
our high permittivity ceramic ({\epsilon} ~ 100) elements have demonstrated a
25% reading range improvement in respect to commercial tags. In case, when
state of the art readers and RFID chips are used, the readout distances of the
developed ceramic tags are approaching 23 m and could be further extended with
improved matching circuits.
