
320 RFID and Auto-ID in Planning and Logistics
In marine applications where the depth of the water requires that the RFID portal antenna be
mounted on a oating navigational buoy, antenna mounting considerations become somewhat more
complicated. The same is true for an RFID antenna mounted on a vessel. In both cases, the antenna
platform is subject to wave action. This means that the orientation of the interrogation zone of the
RFID antenna will be constantly changing. Since many RFID systems require a certain period to
successfully acquire a signal, this could present a signicant performance issue.
In similar situations with other electronic ...