Study of printed spiral coils for neuroprosthetic transcranial telemetry applications

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Publication Type Journal Article
School or College School of Medicine
Department Ophthalmology; Bioengineering; Surgery; Physiology
Creator Normann, Richard A.; Shah, Maulik R.
Other Author Phillips, Richard P.
Title Study of printed spiral coils for neuroprosthetic transcranial telemetry applications
Date 1998
Description We have explored the use of printed spiral coils (PSC's) for neuroprosthetic transcranial telemetry applications. We fabricated two-dimensional PSC's on a thin (25 microns) polyimide substrate using copper (35 microns) as a conducting material. All the coils had a fixed inner diameter of 1.0 cm. We fabricated two sets of coils. One set of coils consisted of 2- to 5-turn circular and square spiral coils and had different trace widths (W), different spacings (S) between adjacent traces, and different outer diameters. The other set of coils consisted of 5-turn circular spiral coils and had fixed inner and outer diameters but different W to S ratios. We measured loss resistances (Rs and Rp) and quality factors (Q) of these coils at different resonating frequencies in the range of 5-40 MHz. Over this frequency range, we observed that for fixed inner and outer diameters, the coil with the largest W achieved the lowest Rs and the highest Rp and Q. These electrical properties and the fact that these coils can conform to the complex convoluted cortical surface suggest that a PSC [15] can provide a viable alternative to a conventional wire-wound coil for neuroprosthetic transcranial telemetry applications.
Type Text
Publisher Institute of Electrical and Electronics Engineers (IEEE)
Volume 45
Issue 7
First Page 867
Last Page 876
Subject Blindness; Neuroprosthesis; Transcranial Telemetry System; Prosthesis Design
Subject MESH Blindness; Electric Conductivity; Humans; Prosthesis Design; Telemetry
Language eng
Bibliographic Citation Shah MR, Phillips RP, Normann RA. (1998). A study of printed spiral coils for neuroprosthetic transcranial telemetry applications. IEEE Trans Biomed Eng, 45(7), 867-76
Rights Management © Institute of Electrical and Electronics Engineers (IEEE)
Format Medium application/pdf
Identifier ir-main,12722
ARK ark:/87278/s6qr5fpv
Setname ir_uspace
Date Created 2012-06-13
Date Modified 2012-06-13
ID 706430
Reference URL https://collections.lib.utah.edu/ark:/87278/s6qr5fpv
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