$\mu \text{Radio}$: First Characterization Results Towards a $100\ \mu\mathrm{m}\times 100\ \mu \mathrm{m}$ Monolithic Radio with Bio-Electrical Interface

Micrometer size, autonomous sensors with wireless power and communication links have high potential to enable minimally invasive bio-electronic interfaces. Toward this goal, we designed and fabricated on a 130 nm RF-CMOS node a low-power solution that integrates into a 100 μm×100 μm silicon area all circuits required for sensing and amplification of bioelectrical signals while providing RF wireless power delivery and data transmission. Here, we present preliminary measurements results that demonstrate the feasibility of the solution and we discuss further developments to overcome limitations of current prototype.