Miniaturized UWB Implantable Antenna for Brain-Machine-Interface

Brain-Machine-Interface (BMI) will transfer the neural activities of brain to machine for potential actions. Antenna for Brain-Machine-Interface needs to be very small, due to limited available space in human head. Ultra Wideband (UWB) technology with their low cost, low power consumption, high data rate and small form factor of antenna is one of the strong candidate for medical implanted devices. Possibility to have a miniature antenna and as a result small implanted device, put the UWB system on the top for the Brain-Machine-Interface application. This paper presents the design of a very small UWB antenna which is placed in the skull bone and covered with head tissues, i.e. fat and skin. Therefore, antenna needs to be biocompatible, hence will not be rejected by the tissue surrounding. Tissue electrical properties around the implanted antenna has significant effect on the antenna performance, thus, electrical properties of tissues were considered on the time of antenna design. There is no doubt that, in the very nearest future, the BMI could be very helpful for people with neurological problems and difficulties. The aim of this design is to provide a fitting and handy BMI implant antenna in term of size and placement at UWB frequency band.