Design and Simulation of Two Bluetooth Antennas for Biomedical Device Using Ansys

Two novel Bluetooth antenna designs are presented and compared in the paper. Both patterns can be laser-direct-structuring (LDS) printed on the inner surface of a specific industry-oriented structure. As the designs are potentially applied for a biomedical device which has very compact volume and light weight, a precisely defined simulation model of human body is required for accurate simulation results through the design procedures. Two designs have different relative orientations to the human body, from which the influence of the human body on antenna performance can be compared in two scenarios. Return losses, total efficiencies, and radiation patterns are presented and discussed.