Nowadays Real-time localization systems (RTLS)
are growing up very quickly but there are some remaining
issues which need to be analyzed. This paper presents an
experimental study that shows how different kind of antennas
can help to reach a more accurate localization. Among all
different wireless technologies, active radio-frequency
identification (RFID) has been chosen due to its development
and simplicity. The study has been divided into two different
parts. Firstly RF tests are made to assure received signal
strength indicator (RSSI) levels are the expected. Secondly
measurements with different antennas have been performed.
The antennas used in this study are: an Omni-directional
monopole standard antenna, a Patch antenna and a 2 Patch
Array antenna both in a FR4 substrate.
