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Wireless Power and Data Transmission to Implanted Systems
This lecture covers the principles of wireless power and data transmission to implanted systems, focusing on inductive coupling, load modulation, and impedance matching. It discusses the design and operation of inductive links, the use of reflected impedance models, and the modulation index. The lecture also explores non-radiating EM field techniques such as magnetic resonance coupling and capacitive coupling, emphasizing power transfer efficiency and system optimization. Additionally, it delves into active and passive circuit architectures for wireless communication in biomedical devices, including ultrasound and optical coupling methods.