Performance of a novel miniature antenna implanted into the human trunk for medical telemetry applications

The performance of an implantable miniature planar dipole antenna designed for integration into wireless biomedical devices is investigated. The proposed antenna, exhibiting dimensions of 19.4 × 2.0 × 0.254 mm³, operates in the Medical Implant Communications Service (MICS) frequency band (402-405 MHz). Numerical analysis with regard to antenna resonance and radiation characteristics is, initially, conducted inside a homogeneous 2/3 muscle-equivalent phantom. Based on the initial computational results, the dipole antenna is, subsequently, embedded into the trunk of two high-resolution anatomical models in order to assess the antenna functionality under specific implantation scenario. As shown, designed antenna is robust, allowing placement in different positions and demonstrating impressive bandwidth and resonance performance at a very small package. Specific Absorption Rate (SAR) distribution and communication link estimation concerning the realistic tissue environment are, also, carried out.