Wessel, Brian Langan
(2004)
Analytical and Numerical Optimization of an Implantable Volume Conduction Antenna.
Master's Thesis, University of Pittsburgh.
(Unpublished)
Abstract
As implantable devices become increasingly sophisticated, a means of communication is required to transmit data to and from the device. A volume conduction antenna model has been developed that meets the size and power constraints of an in vivo environment. This thesis aims to optimize the shape, curvature, and orientation of these antennas. Analytical and numerical analysis shows that the performance is independent of the conic section used to simulate an antenna. Both analyses were also in agreement that highest curvatures achieve maximum surface potentials, and that the angle is dependent on the distance of the antenna from the surface of the head. Analytical analysis suggests that pointing the antenna elements directly at the surface may not be the optimum angle, but rather at a smaller angle. Too few data points were taken to make the same determination from the numerical case but the optimum angle does deviate from the hypothesized angle in the same way, suggesting a similar result. The numerical analysis was important as it facilitated the simulation of the epoxy between the antenna elements. Incorporating epoxy into the simulation showed 30-35% increases in surface potential. A reflective sheet was then added showing further increases in surface potential.
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Details
| Item Type: |
University of Pittsburgh ETD
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| Status: |
Unpublished |
| Creators/Authors: |
|
| ETD Committee: |
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| Date: |
9 June 2004 |
| Date Type: |
Completion |
| Defense Date: |
5 April 2004 |
| Approval Date: |
9 June 2004 |
| Submission Date: |
15 April 2004 |
| Access Restriction: |
No restriction; Release the ETD for access worldwide immediately. |
| Institution: |
University of Pittsburgh |
| Schools and Programs: |
Swanson School of Engineering > Electrical Engineering |
| Degree: |
MSEE - Master of Science in Electrical Engineering |
| Thesis Type: |
Master's Thesis |
| Refereed: |
Yes |
| Uncontrolled Keywords: |
antenna; biotelemetry; data communication; dipole; FEA; finite element analysis; impedance; neural prosthesis; neuro-engineering; telemetry |
| Other ID: |
http://etd.library.pitt.edu/ETD/available/etd-04152004-194608/, etd-04152004-194608 |
| Date Deposited: |
10 Nov 2011 19:37 |
| Last Modified: |
15 Nov 2016 13:40 |
| URI: |
http://d-scholarship.pitt.edu/id/eprint/7179 |
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