Wearable Antennas on Flexible Substrate

Antenna is still one of the major devices in any wireless application. It has a direct impact on the size, shape and performance of the global wireless system. The physical integration of antennas to devices is a major issue for the designers as they must deal with additional features like safety and regulation constraints. Nowadays, the tendency is to integrate more and more wireless devices as near as possible to the human body which is however known to be very hostile to RF signal because of its absorbing properties [1].