Performance Comparison between Single and Multiple Implanted Receivers in a Hybrid Power/Data Transfer System

摘要

In this paper, we proposed a multiple implanted hybrid system consisting of a high-frequency coil (13.56 MHz) to transfer power, and an ultra-high frequency antenna (905 MHz) for data communication. This hybrid system was compared with a single implanted hybrid design under lateral misalignment condition. We numerically simulated both systems and studied their performance in terms of power and data transfer. The implanted single and multiple receivers are assumed to be buried inside a layered body tissue model at 30 mm distance. Insertion loss (S_(21)) and transmission efficiency (η) in the range of lateral misalignment of -60 mm to 60 mm in step of 10 mm were evaluated. The simulation results show that multiple implanted antenna/coil pair is more stable and efficient than single one. The effeciencies have been increased to reach 250% and 234% for both antenna and coil respectively at aligned condition.