Design of Wideband and Flexible Implantable Antenna for Wireless Medical Application

A implantable antenna is designed in this paper, which is implantable for the body area network application. To obtain the miniaturized size, the antenna is fed coplanar waveguide. Its thickness is less than 0.15 mm. Then the gap loading technique is used on the radiation patch to tune the center frequency and improved the bandwidth. A three-layer human body tissue model is built to imitate the simulation environment of the antenna accurately, and this model can improve the simulation results. Then we use the pork as experiment material where the antenna is put into. Experiment results show the bandwidth of the antenna is 4.5 - 8.6 GHz around the 5.8 GHz, which verified our designed antenna available.