A new ultrawideband body-implantable antenna is
proposed for low-power, very high data-rate short-range
communication with an external near-field device. It is a single layer
slot-based printed antenna with 15 mm diameter. The antenna is
intended for impulse radio using the 1.4 GHz to 4.2 GHz frequency
range. The antenna design and experimental tests considered that it
was immersed in a liquid phantom with electrical properties similar
to the muscle. Simulated and measured input reflection results were
compared with good matching. The time domain analysis shows low
pulse distortion, suitable for high data rate communications up to
about 1.1 Gbps gross bit rate.