A Smart Contact Lens Controller IC Supporting Dual-Mode Telemetry With Wireless-

Abstract

This article presents a controller IC for smart contact lens (SCL). For wireless telemetry, we propose a trans- mitter supporting dual-mode operations with a single external loop antenna. In the wireless-powered backscattering load-shift keying (LSK) mode, the transmitter is configured to use the antenna as an L for magnetic resonance coupling. The trans- mitter switches its configuration to be an active LC oscillator circuit in the RF-radiated transmission mode. To suppress the average power cons