An intelligent antenna system for extending the effective communication
range of a machine-readable passive tag. The system may include
intelligence that allows one of a plurality of extension antennas in an
antenna network to be active at any given time. The machine-readable tag
and antenna network may further be embedded in a structure. For example,
the system may include multiple passive tags that are active in
correspondence to a display or advertisement currently being exhibited.
The system may include means for operatively coupling the corresponding
machine-readable tag to the embedded antenna network.