A system for reducing electromagnetic interference between two or more
co-located antennas is described herein. In one embodiment, the system
includes a first antenna for transmitting a first signal within a first
frequency band, and a second antenna for operating within a second
frequency band during transmission of the first signal. The first and
second frequency bands may be substantially identical, or may occupy
overlapping or nearby channels within the radio frequency spectrum. The
system also includes an apparatus. In one embodiment, the apparatus is
positioned proximate to the second antenna for intercepting the
electromagnetic energy radiated from the first antenna during
transmission of the first signal. In other embodiments, the apparatus may
be positioned proximate to the first antenna for intercepting the
electromagnetic energy radiated from the second antenna during
transmission of a second signal. In either embodiment, the apparatus is
able to reduce electromagnetic interference between the first and second
antennas by scattering (or redirecting) radiated energy away from either
the first antenna or the second antenna.