Insulated Wire Fed Floating Monopole Antenna for Coastal Monitoring

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dc.contributor.authorLoni, Zia M.
dc.contributor.authorEspinosa, Hugo G.
dc.contributor.authorThiel, David V.
dc.coverage.issue1cs
dc.coverage.volume27cs
dc.date.accessioned2018-06-18T10:30:18Z
dc.date.available2018-06-18T10:30:18Z
dc.date.issued2018-04cs
dc.description.abstractA thin, flexible, insulated wire submerged in seawater forms a coaxial cable which has attenuation at ultra-high frequency (UHF) dependent on the operating frequency, the diameter of the insulating material and the diameter of the inner conductor. An extension of the insulated wire above the surface through a spherical float forms a monopole antenna. Attenuation through the wire depends on the conductivity and temperature of seawater. This paper reports the effect of electromagnetic (EM) wave propagation at 433 MHz through insulated wires with different radii of the insulating material and inner conductor. The attenuation was calculated and measured in the range of 32-47 dB/m. The propagation from the monopole antenna to a fixed shore based receiver was measured to be approximately equal to 1 dB/m. The propagation measurements were compared with a shielded coaxial cable. Results show that the propagation range depends on the ratio of the insulation radius to conductor radius for insulated wire, however, a shielded coaxial cable showed no significant attenuation. The technique has applications in coastal wireless sensor networks where the water depth changes continually due to tide and wave motion.en
dc.formattextcs
dc.format.extent127-133cs
dc.format.mimetypeapplication/pdfen
dc.identifier.citationRadioengineering. 2018 vol. 27, č. 1, s. 127-133. ISSN 1210-2512cs
dc.identifier.doi10.13164/re.2018.0127en
dc.identifier.issn1210-2512
dc.identifier.urihttp://hdl.handle.net/11012/82969
dc.language.isoencs
dc.publisherSpolečnost pro radioelektronické inženýrstvícs
dc.relation.ispartofRadioengineeringcs
dc.relation.urihttps://www.radioeng.cz/fulltexts/2018/18_01_0127_0133.pdfcs
dc.rightsCreative Commons Attribution 4.0 Internationalen
dc.rights.accessopenAccessen
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.subjectFloating monopole antennaen
dc.subjectocean wave propagationen
dc.subjectwireless sensor networksen
dc.subjectinsulated wire transmission.en
dc.titleInsulated Wire Fed Floating Monopole Antenna for Coastal Monitoringen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
eprints.affiliatedInstitution.facultyFakulta eletrotechniky a komunikačních technologiícs
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