A twin spiral planar antenna for UWB medical radars


Autoria(s): Zito, Giuseppe A.; Staderini, Enrico M.; Pisa, Stefano
Data(s)

2013

Resumo

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.

Formato

application/pdf

Identificador

http://boris.unibe.ch/47636/1/684185.pdf

Zito, Giuseppe A.; Staderini, Enrico M.; Pisa, Stefano (2013). A twin spiral planar antenna for UWB medical radars. International Journal of Antennas and Propagation, 2013, pp. 1-6. 10.1155/2013/684185 <http://dx.doi.org/10.1155/2013/684185>

doi:10.7892/boris.47636

info:doi:10.1155/2013/684185

Idioma(s)

eng

Relação

http://boris.unibe.ch/47636/

Direitos

info:eu-repo/semantics/openAccess

Fonte

Zito, Giuseppe A.; Staderini, Enrico M.; Pisa, Stefano (2013). A twin spiral planar antenna for UWB medical radars. International Journal of Antennas and Propagation, 2013, pp. 1-6. 10.1155/2013/684185 <http://dx.doi.org/10.1155/2013/684185>

Palavras-Chave #610 Medicine & health #620 Engineering
Tipo

info:eu-repo/semantics/article

info:eu-repo/semantics/publishedVersion

PeerReviewed