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A low-cost fluid switch for frequency reconfigurable Vivaldi antenna

Borda Fortuny, C; Tong, K; Al-Armaghany, A; Wong, K; (2017) A low-cost fluid switch for frequency reconfigurable Vivaldi antenna. IEEE Antennas and Wireless Propagation Letters , 16 pp. 3151-3154. 10.1109/LAWP.2017.2759580. Green open access

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Abstract

A fluid switch is proposed for a frequency agile Vivaldi antenna whose operating frequency band can be switched between two selected bands. A study of various ionized solutions of different concentrations is performed. A 2-mol KCl solution is selected as the fluid for the switch because of its relatively good properties in conductivity, relative permittivity and loss tangent. The fluid-switched reconfigurable Vivaldi antenna can function well between two user-defined operating bands: 3.2 GHz and 4.5 GHz with stable measured gain of 11 dBi in both bands and an isolation of 15 dB. This reconfigurable antenna demonstrates that a low-cost fluid switch may be an alternative device for reconfigurable antenna designs providing more flexibility.

Type: Article
Title: A low-cost fluid switch for frequency reconfigurable Vivaldi antenna
Location: US
Open access status: An open access version is available from UCL Discovery
DOI: 10.1109/LAWP.2017.2759580
Publisher version: https://doi.org/10.1109/LAWP.2017.2759580
Language: English
Additional information: This work is licensed under a Creative Commons Attribution 3.0 License. For more information, see http://creativecommons.org/licenses/by/3.0/
Keywords: Reconfigurable antennas, ionized solutions
UCL classification: UCL
UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Electronic and Electrical Eng
URI: https://discovery.ucl.ac.uk/id/eprint/10023788
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