A multi-mode communication system for a mobile phone includes a plurality of antennas, a plurality of matching networks, each matching network connected to a respective one of said plurality of antennas, a plurality of near field devices, each near field device connected to a respective one of said plurality of matching networks, each pair of near field device and its associated matching network operative to either load modulate its antenna or generate an active magnetic field via its antenna, a plurality of switches, with one of said switches positioned between each of said matching networks and its respective antenna, and a controller for controlling the switched state of said plurality of switches such that one or more of said near field devices and their respective matching networks are selectively coupled to their respective antennas.