Compact Implantable Antenna Design for Biotelemetry Applications Operating at ISM

The bulky size and its complications are the major concerns of the medical fraternity about the implantable devices in a human body. This paper explicates the optimal design of a compact miniaturized implantable Micro-strip Patch Antenna (MPA). Initially, the antenna is designed by applying different miniaturization techniques to operate at Industrial, Scientific and Medical (ISM) band ranging from 2.4 to 2.48GHz. The designed antenna is placed in simulated model of human skin and tested. The radiating geometry of the proposed antenna is optimized to operate at proposed bands as behavior of the antenna is different than free space. A prototype of the antenna tested in simulated model of skin is measured in the free space and compared to simulated results. A good agreement in the simulated and measured result is observed. The size and other parameters of the proposed implantable antenna are compared with state-of-the-art literature, and it is reported that the proposed antenna is miniaturized up to 80%. The proposed antenna has its applications in smart implantable devices operated at ISM frequency band.