Low-cost mechanism to reconfigure the operating frequency band of a Vivaldi antenna for cognitive radio and spectrum monitoring applications
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- dc.contributor.author Borda Fortuny, Cristinaca
- dc.contributor.author Tong, Kin-Faica
- dc.contributor.author Chetty, Kevinca
- dc.date.accessioned 2018-06-22T13:30:57Z
- dc.date.available 2018-06-22T13:30:57Z
- dc.date.issued 2018
- dc.description.abstract A frequency agile Vivaldi antenna whose operating frequency band can be switched between two selected bands is proposed in this study for spectrum monitoring and cognitive radio applications. A radiofrequency (RF) switch is introduced into the back-slot of a Vivaldi antenna to allow switching of the operational band. The realised gains of the antenna are 10.5 dBi in the low band around 3.1 GHz, and 12 dBi in high band around 4.1 GHz. The radiation pattern is stable and its direction is consistent across the two bands. This design can be applied to multiple reconfigurable bands by using more RF switches to tune the desired operating frequency. A set of reliable design equations has been provided as well. This reconfigurable antenna offers improved gain and isolation over multiple, wideband and multiband antennas without increasing the cost and size when compared with those designs reported.en
- dc.format.mimetype application/pdf
- dc.identifier.citation Borda-Fortuny C, Tong KF, Chetty K. Low-cost mechanism to reconfigure the operating frequency band of a Vivaldi antenna for cognitive radio and spectrum monitoring applications. IET Microwaves, Antennas & Propagation. 2018;12(5):779-82. DOI: 10.1049/iet-map.2017.0731
- dc.identifier.doi http://dx.doi.org/10.1049/iet-map.2017.0731
- dc.identifier.issn 1751-8725
- dc.identifier.uri http://hdl.handle.net/10230/34958
- dc.language.iso eng
- dc.publisher Institution of Engineering and Technology (IET)ca
- dc.relation.ispartof IET Microwaves, Antennas & Propagation. 2018;12(5):779-82
- dc.rights This is an open access article published by the IET under the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0/)
- dc.rights.accessRights info:eu-repo/semantics/openAccess
- dc.rights.uri http://creativecommons.org/licenses/by/3.0/
- dc.subject.keyword Wideband multiband antennasen
- dc.subject.keyword Radiofrequency switchen
- dc.subject.keyword Frequency agile Vivaldi antennaen
- dc.subject.keyword Spectrum monitoring applicationsen
- dc.subject.keyword Cognitive radioen
- dc.subject.keyword Operating frequency banden
- dc.title Low-cost mechanism to reconfigure the operating frequency band of a Vivaldi antenna for cognitive radio and spectrum monitoring applicationsen
- dc.type info:eu-repo/semantics/article
- dc.type.version info:eu-repo/semantics/publishedVersion