Time-Domain Performance of Printed UWB Antennas

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

Tagungsband: EuCAP 2009

Seiten: 4Sprache: EnglischTyp: PDF

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Ammann, Max J.; John, Matthias (Centre for Telecommunications Value-Chain Research (CTVR), Dublin Institute of Technology, Kevin Street, Dublin 8, Ireland)
Dumoulin, Antoine; McEvoy, Patrick (School of Electronic & Communications Engineering, Dublin Institute of Technology, Kevin Street, Dublin 8, Ireland)

Three different printed Ultrawideband (UWB) monopole antennas are investigated and their performance compared in terms of bandwidth, radiation pattern stability and fidelity factor. The antennas used are a simple printed rectangular plate monopole, a small spline shaped monopole with shaped groundplane and a smaller spline shaped monopole, where size constraints dominate. The fidelity factor is used to assess the pulse dispersion due to the antenna. It is obtained by transmitting a pulse between a pair of antennas and correlating the received pulse to the input pulse. It is found that the spline shaped monopoles provide an advantage over the rectangular monopole when pulse preserving capability is required.