A Twin Spiral Planar Antenna for UWB Medical Radars
A planar-spiral antenna to be used in an ultrawideband (UWB) radar system for heart activity monitoring is presented. The antenna, named “twin,” is constituted by two spiral dipoles in a compact structure. The reflection coefficient at the feed point of the dipoles is lower than −8 dB over the 3–12 ...
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| Language: | English |
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Hindawi Limited
2013-01-01
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| Series: | International Journal of Antennas and Propagation |
| Online Access: | http://dx.doi.org/10.1155/2013/684185 |
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doaj-62da683524284a2cb2b3d892372bab602020-11-25T00:31:08ZengHindawi LimitedInternational Journal of Antennas and Propagation1687-58691687-58772013-01-01201310.1155/2013/684185684185A Twin Spiral Planar Antenna for UWB Medical RadarsGiuseppe A. Zito0Enrico M. Staderini1Stefano Pisa2Gerontechnology and Rehabilitation Group, ARTORG Center for Biomedical Engineering Research, University of Bern, 3010 Bern, SwitzerlandHaute École d'Ingénierie et de Gestion du Canton de Vaud, Western Switzerland University of Applied Sciences (HES-SO), 1401 Yverdon-les-Bains, SwitzerlandDepartment of Information Engineering, Electronics and Telecommunications, Sapienza University of Rome, 00184 Rome, ItalyA planar-spiral antenna to be used in an ultrawideband (UWB) radar system for heart activity monitoring is presented. The antenna, named “twin,” is constituted by two spiral dipoles in a compact structure. The reflection coefficient at the feed point of the dipoles is lower than −8 dB over the 3–12 GHz band, while the two-dipoles coupling is about −20 dB. The radiated beam is perpendicular to the plane of the spiral, so the antenna is wearable and it may be an optimal radiator for a medical UWB radar for heart rate detection. The designed antenna has been also used to check some hypotheses about the UWB radar heart activity detection mechanism. The radiation impedance variation, caused by the thorax vibrations associated with heart activity, seems to be the most likely explanation of the UWB radar operation.http://dx.doi.org/10.1155/2013/684185 |
| collection |
DOAJ |
| language |
English |
| format |
Article |
| sources |
DOAJ |
| author |
Giuseppe A. Zito Enrico M. Staderini Stefano Pisa |
| spellingShingle |
Giuseppe A. Zito Enrico M. Staderini Stefano Pisa A Twin Spiral Planar Antenna for UWB Medical Radars International Journal of Antennas and Propagation |
| author_facet |
Giuseppe A. Zito Enrico M. Staderini Stefano Pisa |
| author_sort |
Giuseppe A. Zito |
| title |
A Twin Spiral Planar Antenna for UWB Medical Radars |
| title_short |
A Twin Spiral Planar Antenna for UWB Medical Radars |
| title_full |
A Twin Spiral Planar Antenna for UWB Medical Radars |
| title_fullStr |
A Twin Spiral Planar Antenna for UWB Medical Radars |
| title_full_unstemmed |
A Twin Spiral Planar Antenna for UWB Medical Radars |
| title_sort |
twin spiral planar antenna for uwb medical radars |
| publisher |
Hindawi Limited |
| series |
International Journal of Antennas and Propagation |
| issn |
1687-5869 1687-5877 |
| publishDate |
2013-01-01 |
| description |
A planar-spiral antenna to be used in an ultrawideband (UWB) radar system for heart activity monitoring is presented. The antenna, named “twin,” is constituted by two spiral dipoles in a compact structure. The reflection coefficient at the feed point of the dipoles is lower than −8 dB over the 3–12 GHz band, while the two-dipoles coupling is about −20 dB. The radiated beam is perpendicular to the plane of the spiral, so the antenna is wearable and it may be an optimal radiator for a medical UWB radar for heart rate detection. The designed antenna has been also used to check some hypotheses about the UWB radar heart activity detection mechanism. The radiation impedance variation, caused by the thorax vibrations associated with heart activity, seems to be the most likely explanation of the UWB radar operation. |
| url |
http://dx.doi.org/10.1155/2013/684185 |
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AT giuseppeazito atwinspiralplanarantennaforuwbmedicalradars AT enricomstaderini atwinspiralplanarantennaforuwbmedicalradars AT stefanopisa atwinspiralplanarantennaforuwbmedicalradars AT giuseppeazito twinspiralplanarantennaforuwbmedicalradars AT enricomstaderini twinspiralplanarantennaforuwbmedicalradars AT stefanopisa twinspiralplanarantennaforuwbmedicalradars |
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