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dc.contributor.authorLoni, Zia M
dc.contributor.authorEspinosa, Hugo G
dc.contributor.authorThiel, David V
dc.date.accessioned2019-05-29T12:34:44Z
dc.date.available2019-05-29T12:34:44Z
dc.date.issued2018
dc.identifier.issn1210-2512
dc.identifier.doi10.13164/re.2018.0127
dc.identifier.urihttp://hdl.handle.net/10072/380110
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.
dc.description.peerreviewedYes
dc.languageEnglish
dc.language.isoeng
dc.publisherBrno University of Technology
dc.publisher.placeCzech Republic
dc.relation.ispartofpagefrom127
dc.relation.ispartofpageto133
dc.relation.ispartofissue1
dc.relation.ispartofjournalRadioengineering
dc.relation.ispartofvolume27
dc.subject.fieldofresearchElectrical engineering not elsewhere classified
dc.subject.fieldofresearchElectronics, sensors and digital hardware not elsewhere classified
dc.subject.fieldofresearchCommunications engineering
dc.subject.fieldofresearchElectronics, sensors and digital hardware
dc.subject.fieldofresearchcode400899
dc.subject.fieldofresearchcode400999
dc.subject.fieldofresearchcode4006
dc.subject.fieldofresearchcode4009
dc.titleInsulated Wire Fed Floating Monopole Antenna for Coastal Monitoring
dc.typeJournal article
dc.type.descriptionC1 - Articles
dc.type.codeC - Journal Articles
dcterms.licensehttp://creativecommons.org/licenses/by/4.0/
dc.description.versionVersion of Record (VoR)
gro.facultyGriffith Sciences, School of Engineering and Built Environment
gro.rights.copyright© The Author(s) 2018. This is an Open Access article distributed under the terms of the Creative Commons Attribution 4.0 International (http://creativecommons.org/licenses/by/4.0/) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
gro.hasfulltextFull Text
gro.griffith.authorThiel, David V.
gro.griffith.authorEspinosa, Hugo G.


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