The growing miniaturization of electronic devices combined with the
recent developments in wearable computer technology have been leading to
the creation of a wide range of devices which can be carried in a pocket
or attached to a user's body. These applications have allowed the
removal of the need for wired interconnections and have led to the rise
of the concept of the wireless body area network (WBAN). These networks
have a wide range of applications such as healthcare, smart home,
monitoring, mobile entertainment, etc. To ensure the efficient
performance of such wireless networks the radio propagation channels and
the antenna systems need to be characterized and modeled. This study
focuses on the characterization of the channel of WBANs and on the
design of a body worn antenna. To face the fading generated by the body
movement, a MIMO antenna has been designed exploiting the Theory of the
Characteristic Modes. This research covers several topics and should be
especially useful to professionals in Communication Technologies or
anyone else who wants to increase knowledge in on body wireless networks
and MIMO multimode antennas.