Design of a Small Modified Minkowski Fractal Antenna for Passive Deep Brain Stimulation Implants
A small planar modified Minkowski fractal antenna is designed and simulated in dual frequency bands (2.4 and 5.8 GHz) for wireless energy harvesting by deep brain stimulation (DBS) devices. The designed antenna, physically being confined inside a miniaturized structure, can efficiently convert the w...
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| Format: | Article |
| Language: | English |
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Wiley
2014-01-01
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| Series: | International Journal of Antennas and Propagation |
| Online Access: | http://dx.doi.org/10.1155/2014/749043 |
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| author | Sara Manafi Hai Deng |
| author_facet | Sara Manafi Hai Deng |
| author_sort | Sara Manafi |
| collection | DOAJ |
| description | A small planar modified Minkowski fractal antenna is designed and simulated in dual frequency bands (2.4 and 5.8 GHz) for wireless energy harvesting by deep brain stimulation (DBS) devices. The designed antenna, physically being confined inside a miniaturized structure, can efficiently convert the wireless signals in dual ISM frequency bands to the energy source to recharge the DBS battery or power the pulse generator directly. The performance metrics such as the return loss, the specific absorption rate (SAR), and the radiation pattern within skin and muscle-fat-skin tissues are evaluated for the designed antenna. The gain of the proposed antenna is 3.2 dBi at 2.4 GHz and 4.7 dBi at 5.8 GHz; also the averaged SAR of the antenna in human body tissue is found to be well below the legally allowed limit at both frequency bands. The link budget shows the received power at the distance of 25 cm at 2.4 GHz and 5.8 GHz are around 0.4 mW and 0.04 mW, which can empower the DBS implant. The large operational bandwidth, the physical compactness, and the efficiency in wireless signal reception make this antenna suitable in being used in implanted biomedical devices such as DBS pulse generators. |
| format | Article |
| id | doaj-art-9c80ec7e10a04989900cc6a5c4c36e13 |
| institution | Kabale University |
| issn | 1687-5869 1687-5877 |
| language | English |
| publishDate | 2014-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Antennas and Propagation |
| spelling | doaj-art-9c80ec7e10a04989900cc6a5c4c36e132025-08-20T03:38:22ZengWileyInternational Journal of Antennas and Propagation1687-58691687-58772014-01-01201410.1155/2014/749043749043Design of a Small Modified Minkowski Fractal Antenna for Passive Deep Brain Stimulation ImplantsSara Manafi0Hai Deng1Department of Electrical and Computer Engineering, Florida International University, Miami, FL 33174, USADepartment of Electrical and Computer Engineering, Florida International University, Miami, FL 33174, USAA small planar modified Minkowski fractal antenna is designed and simulated in dual frequency bands (2.4 and 5.8 GHz) for wireless energy harvesting by deep brain stimulation (DBS) devices. The designed antenna, physically being confined inside a miniaturized structure, can efficiently convert the wireless signals in dual ISM frequency bands to the energy source to recharge the DBS battery or power the pulse generator directly. The performance metrics such as the return loss, the specific absorption rate (SAR), and the radiation pattern within skin and muscle-fat-skin tissues are evaluated for the designed antenna. The gain of the proposed antenna is 3.2 dBi at 2.4 GHz and 4.7 dBi at 5.8 GHz; also the averaged SAR of the antenna in human body tissue is found to be well below the legally allowed limit at both frequency bands. The link budget shows the received power at the distance of 25 cm at 2.4 GHz and 5.8 GHz are around 0.4 mW and 0.04 mW, which can empower the DBS implant. The large operational bandwidth, the physical compactness, and the efficiency in wireless signal reception make this antenna suitable in being used in implanted biomedical devices such as DBS pulse generators.http://dx.doi.org/10.1155/2014/749043 |
| spellingShingle | Sara Manafi Hai Deng Design of a Small Modified Minkowski Fractal Antenna for Passive Deep Brain Stimulation Implants International Journal of Antennas and Propagation |
| title | Design of a Small Modified Minkowski Fractal Antenna for Passive Deep Brain Stimulation Implants |
| title_full | Design of a Small Modified Minkowski Fractal Antenna for Passive Deep Brain Stimulation Implants |
| title_fullStr | Design of a Small Modified Minkowski Fractal Antenna for Passive Deep Brain Stimulation Implants |
| title_full_unstemmed | Design of a Small Modified Minkowski Fractal Antenna for Passive Deep Brain Stimulation Implants |
| title_short | Design of a Small Modified Minkowski Fractal Antenna for Passive Deep Brain Stimulation Implants |
| title_sort | design of a small modified minkowski fractal antenna for passive deep brain stimulation implants |
| url | http://dx.doi.org/10.1155/2014/749043 |
| work_keys_str_mv | AT saramanafi designofasmallmodifiedminkowskifractalantennaforpassivedeepbrainstimulationimplants AT haideng designofasmallmodifiedminkowskifractalantennaforpassivedeepbrainstimulationimplants |