Imperial College London
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Professor Timothy Constandinou

Faculty of Engineering, Department of Electrical and Electronic Engineering

Professor of Bioelectronics
 
 
 
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Contact

 

+44 (0)20 7594 0790t.constandinou Website

 
 
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Assistant

 

Miss Izabela Wojcicka-Grzesiak +44 (0)20 7594 0701

 
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Location

 

B407Bessemer BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@inproceedings{Feng:2018:10.1109/BIOCAS.2018.8584730,
author = {Feng, P and Constandinou, TG},
doi = {10.1109/BIOCAS.2018.8584730},
pages = {363--366},
publisher = {IEEE},
title = {Robust wireless power transfer to multiple mm-scale freely-positioned Neural implants},
url = {http://dx.doi.org/10.1109/BIOCAS.2018.8584730},
year = {2018}
}
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RIS format (EndNote, RefMan)

TY  - CPAPER
AB  - This paper presents a novel wireless power transfer(WPT)  scheme  that  consists  of  a  two-tier  hierarchy  of  near-field inductively coupled links to provide efficient power transferefficiency  (PTE)  and  uniform  energy  distribution  for  mm-scalefree-positioned  neural  implants.  The  top  tier  facilitates  a  tran-scutaneous  link  from  a  scalp-worn  (cm-scale)  primary  coil  toa  subcutaneous  array  of  smaller,  parallel-connected  secondarycoils. These are then wired through the skull to a correspondingset  of  parallel  connected  primary  coils  in  the  lower  tier,  placedepidurally.  These  then  inductively  couple  to  freely  positioned(mm-scale)  secondary  coils  within  each  subdural  implant.  Thisarchitecture  has  three  key  advantages:  (1)  the  opportunity  toachieve  efficient  energy  transfer  by  utilising  two  short-distanceinductive  links;  (2)  good  uniformity  of  the  transdural  powerdistribution  through  the  multiple  (redundant)  coils;  and  (3)  areduced risk of infection by maintaining the dura protecting theblood-brain barrier. The functionality of this approach has beenverified and optimized through HFSS simulations, to demonstratethe robustness against positional and angular misalignment. Theaverage  11.9%  PTE  and  26.6%  power  distribution  deviation(PDD) for horizontally positioned Rx coil and average 2.6% PTEand  62.8%  power  distribution  deviation  for  the  vertical  Rx  coilhave  been  achieved.
AU  - Feng,P
AU  - Constandinou,TG
DO  - 10.1109/BIOCAS.2018.8584730
EP  - 366
PB  - IEEE
PY  - 2018///
SP  - 363
TI  - Robust wireless power transfer to multiple mm-scale freely-positioned Neural implants
UR  - http://dx.doi.org/10.1109/BIOCAS.2018.8584730
UR  - https://ieeexplore.ieee.org/abstract/document/8584730
UR  - http://hdl.handle.net/10044/1/63459
ER  -
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