Comparison between a novel liquid switch and a GaAs MMIC switch for reconfiguring the operating frequency of a Vivaldi antenna

Cristina Borda-Fortuny, Kin Fai Tong, Kevin Chetty, Kai Kit Wong

Producción científica: Capítulo del libroContribución a congreso/conferenciarevisión exhaustiva

Resumen

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.

Idioma originalInglés
Título de la publicación alojada2017 International Workshop on Electromagnetics
Subtítulo de la publicación alojadaApplications and Student Innovation Competition, iWEM 2017
EditoresYi Wang, Kwok-Kan So
EditorialInstitute of Electrical and Electronics Engineers Inc.
Páginas33-35
Número de páginas3
ISBN (versión digital)9781509063925
DOI
EstadoPublicada - 5 jul 2017
Publicado de forma externa
Evento8th International Workshop on Electromagnetics: Applications and Student Innovation Competition, iWEM 2017 - London, Reino Unido
Duración: 30 may 20171 jun 2017

Serie de la publicación

Nombre2017 International Workshop on Electromagnetics: Applications and Student Innovation Competition, iWEM 2017

Conferencia

Conferencia8th International Workshop on Electromagnetics: Applications and Student Innovation Competition, iWEM 2017
País/TerritorioReino Unido
CiudadLondon
Período30/05/171/06/17

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