Borda Fortuny, CristinaTong, Kin-FaiAl-Armaghany, AllannWong, Kai-Kit2018-06-222018-06-222017Borda Fortuny C, Tong KF, Al-Armaghany A, Wong KK. A low-cost fluid switch for frequency reconfigurable Vivaldi antenna. IEEE Antennas and Wireless Propagation Letters. 2017;16(99):3151-4. DOI: 10.1109/LAWP.2017.27595801536-1225http://hdl.handle.net/10230/34959A 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 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.application/pdfengThis work is licensed under a Creative Commons Attribution 3.0 License. The final published article can be found at https://ieeexplore.ieee.org/document/8105795/info:eu-repo/semantics/articlehttp://dx.doi.org/10.1109/LAWP.2017.2759580Ionized solutionsReconfigurable antennasinfo:eu-repo/semantics/openAccess