Analysis of the location impact on on-body antennas in BANs at 28 GHz

This paper presents a simulation-based study on the characteristics of a 28 GHz Body Area Network antenna at different body sites. The main objective is to evaluate the influence of the antenna position on the body on the performance of the antenna, The importance of using realistic human body models for accurate evaluations is emphasized. The head, torso, and hand components of the CST human model with tissue average properties is used for the study. In addition, assessments are carried out with multilayer tissue head model for comparison. The antenna characteristics are evaluated with these body models, both with and without an antenna holder, which allows the antenna prototype to be attached to the body during measurements.The results show that the antenna location has a significant influence on the characteristics of the antenna, and the presence of the holder also has a significant effect on performance. These results emphases the need to simulate the antenna characteristics at specific intended locations in order to fully understand its performance.