  Plasmonic wireless nanolinks hold great promise to overcome limitations from
conventional metallic wires, namely narrow bandwidths, Ohmic losses, dispersion
and cross-talking. However, current developments are limited to the wireless
communication between two fixed points, i.e., a fixed transmitter with a fixed
receiver, which in turn limits the energy efficiency and integration levels. In
this work, we propose the use of magnetic fields for active tuning of the
radiation beam steering of plasmonic nanoantennas. The physical principle
behind our concept is shown with rigorous solution of the radiation pattern of
a radiating dipolar source in the presence of magnetic fields. The results
indicate that the proposed scheme is feasible with plasmonic nanoantennas made
of ferromagnetic or noble metals in the presence of an applied magnetic field.
