UWB Antenna Design based on Modal Analysis

Konferenz: EuCAP 2009 - 3rd European Conference on Antennas and Propagation
23.03.2009 - 27.03.2009 in Berlin, Germany

Tagungsband: EuCAP 2009

Seiten: 5Sprache: EnglischTyp: PDF

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Ferrando-Bataller, M.; Antonino-Daviu, E.; Cabedo-Fabres, M.; Valero-Nogueira, A. (Instituto de Telecomunicaciones y Aplicaciones Multimedia (iTEAM), Universidad Politécnica de Valencia, Edificio 8G, Camino de Vera, s/n 46022 Valencia, Spain)

In this paper, the Theory of Characteristic Modes is proposed for the analysis and design of UWB planar monopole antennas. This theory provides a very clear insight into the physical performance of this type of antennas. The investigation is focused on the influence of the planar shape in the impedance bandwidth of the antenna, and it will be demonstrated that the impedance bandwidth is extremely dependent on the feeding gap configuration. Moreover, the Theory of Characteristic Modes will be used to analyze UWB antennas with band-notched performance. The information provided by the modal analysis will facilitate the design of band-notched UWB planar monopole antennas, and novel designs will be presented.