Balanced implantable slot-dipole composite antenna for multiband biomedical applications

Design concept of an implantable, balanced slot-dipole composite antenna is proposed and simulated. The antenna is composed of a tapered slot element and a symmetrical dipole and embedded in a planar stratified phantom. The reflection coefficiency, radiation pattern and gain of the antenna are simulated. It is shown that the antenna can operate at 402-405MHz, 433MHz, 902-928MHz and 2400-2500MHz bands for return loss larger than 10dB. The antenna should be useful for implantable, multi-band medical implant communication service (MICS) and industrial, scientific and medical (ISM) applications.