IEEE-4227238 (pdf) Passive Backscatter Biotelemetry for Neural Interfacing
- ahaha. Someone else had the same idea, about at the same time. And they got it to work!
IEEE-5993487 (pdf) A Fully Passive Wireless Microsystem for Recording of Neuropotentials Using RF Backscattering Methods
- Still not that sensitive -- about an order of magnitude too coarse.
- Also, no multiplexing.
- But: there is room, I think this technology has potential.
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- range only 1.5cm.
- suggest performance can be improved by increasing the nonlinearity of the variactors.
- Other papers by the author feature ultrasound-powered microstimulation. He's clearly into alternative approaches.
____References____
Towe, B.C. Neural Engineering, 2007. CNE '07. 3rd International IEEE/EMBS Conference on 144 -147 (2007) |