Borda-Fortuny, C;
Tong, KF;
Chetty, K;
Wong, KK;
(2017)
Comparison between a novel liquid switch and a GaAs MMIC switch for reconfiguring the operating frequency of a Vivaldi antenna.
In: Wang, V and So, K, (eds.)
iWEM 2017: IEEE International Workshop on Electromagnetics: Applications and Student Innovation Competition: Proceedings.
(pp. pp. 33-35).
Institute of Electrical and Electronics Engineers (IEEE)
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Abstract
This article proposes a novel liquid switch to reconfigure the operating frequency of a frequency-independent antenna. A Vivaldi antenna using a low-cost GaAs MMIC RF switch is used as a landmark to compare the measured results. Two prototypes are measured in an anechoic chamber and the results have been compared. The antennas operate in two modes: low-band mode at 3 GHz with 11 dBi of gain and high-band mode operating at 4.5 GHz with a measured gain of 10.8 dBi. The reconfigurable Vivaldi antenna proposed here presents high isolation between operating bands, a minimum of 12 dB, while maintaining high gain and stable radiation pattern which is suitable for cognitive radio applications.
| Type: | Proceedings paper |
|---|---|
| Title: | Comparison between a novel liquid switch and a GaAs MMIC switch for reconfiguring the operating frequency of a Vivaldi antenna |
| Event: | iWEM 2017: IEEE International Workshop on Electromagnetics 2017: Applications and Student Innovation Competition, 30 May - 1 June 2017, London, UK |
| ISBN-13: | 9781509063949 |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1109/iWEM.2017.7968762 |
| Publisher version: | http://doi.org/10.1109/iWEM.2017.7968762 |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | Switches, Liquids, Vivaldi antennas, Gain, Radio frequency, Frequency measurement |
| UCL classification: | UCL 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 UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Security and Crime Science |
| URI: | https://discovery.ucl.ac.uk/id/eprint/1558746 |
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