A Two Octave Bandwidth Dielectric Loaded Biconical Antenna with High Sidelobe Suppression

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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Blech, Marcel D. (Institut für Hochfrequenztechnik , Universität Stuttgart, Pfaffenwaldring 47, 70569 Stuttgart, Germany)
Ott, Arndt T.; Eibert, Thomas F. (Lehrstuhl für Hochfrequenztechnik, Technische Universität München, Arcisstraße 21, 80333 München, Germany)

An ultra-wideband (UWB) dielectric loaded biconical antenna is described. It exhibits a two octave bandwidth of 2-8 GHz. Whithin this range an input reflection below -10 dB and a frequency dependent gain ranging of 0.4-3.9 dBi is achieved. The radiation pattern maintains almost constant in the E-plane. Parasitic sidelobes arising at higher frequencies are kept at least 13 dB below the maximum of the main lobe level. The shape of the normalized impulse response varies only in its scale in an angular range of ±60deg. Thus the antenna is an ideal choice for UWB channel characterization.