Abstract
We present progress toward a wirelessly-powered active contact lens comprised of a transparent polymer substrate, loop antenna, power harvesting IC, and micro-LED. The fully integrated radio power harvesting and power management system was fabricated in a 0.13 μ CMOS process with a total die area of 0.2mm2. It utilizes a small on-chip capacitor for energy storage to light up a micro-LED pixel. We have demonstrated wireless power transfer at 10 cm distance using the custom IC and on-lens antenna.
Original language | English |
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Article number | 5618592 |
Pages (from-to) | 454-461 |
Number of pages | 8 |
Journal | IEEE Transactions on Biomedical Circuits and Systems |
Volume | 4 |
Issue number | 6 PART 2 |
DOIs | |
State | Published - Dec 2010 |
Keywords
- Energy harvesting
- flip chip
- lens
- low-power electronics
- optical device fabrication
- power management
- rectennas
- rectifier