Correction to “Feedback Analysis and Design of RF Power Links for Low-Power Bionic Systems” [Mar 07 28-38]

We report on corrections to two equations in a paper authored by two of us (M.W. Baker and R. Sarpeshkar, see ibid., vol. 1, no. 1, pp. 28-38, Mar. 2007). These corrections were discovered and graciously pointed out by two authors of this manuscript (M. Gasulla and J. Albesa). These corrections generate a more accurate set of equations that do not make approximations made in the original paper. The approximations to the equations do not impact fits to experimental data presented in the original paper, which continue to remain excellent: The experimental data in the original paper were obtained for typical near-field RF power links used in bionic implants where the accurate and approximate equations yield nearly identical results. However, in other experimental systems, the more accurate expressions derived by M. Gasulla and J. Albesa should be used.