The human body has antenna characteristics that are not explored in detail to explain
some phenomena involving the interaction of electromagnetic fields and the human body.
Moreover, the characterization of the human body as antenna unlocks new applications
in body area networks for low-power wireless communications by utilizing the human
body itself as an antenna. This thesis presents a new theory for explaining the antenna characteristics of the human
body in transmission and reception mode. The theory is applied to two areas of study,
namely, Human Body Communication (HBC) and whole-body radio-frequency (RF)
dosimetry. Based on this, the thesis proposes a new concept where the human body is
utilized as an antenna for wireless implant communication.