Design of a Wearable Patch Antenna and Channel Modeling for Internet of Bodies Application

The Internet of Bodies (IoB) is being widely used in military, civil, and medical applications. IoB uses wearable interconnected sensors on, in, or around a human body. Due to the significant signal loss caused by human tissue frequency absorption and the complexity of the propagation environment, one of the most critical challenges in IoB is the characterization of the communication channel between wireless sensors. It is also hard to predict the dynamic behavior of the individual wearing the wireless sensors. In this paper, we propose a mathematical model for the communication channel between transceiver and receiver antennas in free space and in human body propagation environments. We also propose a design of a new patch antenna at 2.4 GHz. Simulation results show that the antenna has good performances in both free space and voxel human body environments.