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Mobile-to-mobile communication, direct, not via base stations, is an upcoming challenge. Different as in mobile-to-mobile communications for Car-to-Car (C2C) or Vehicle-to-Vehicle (V2V) communication no base stations exist. The transmitter as well as the receiver is moving and the propagation paths change continuously. No high gain directive antennas, radiating several watts (of power) are part of...
In an innovative measurement approach time domain antenna characterization has been combined with full 3D radiation pattern characterization. With this approach transient antenna responses can be measured over the entire hemisphere and hence the antenna under test can be comprehensively characterized for UWB impulse applications in both time and spatial domain. The method has been applied to a Vivaldi...
This paper introduces a development of a compact dual polarized traveling wave antenna for Ultra Wideband technique. A principle of the antenna is introduced as well as its development. Subsequently the measurements results are shown including the time domain analysis of the antenna behavior.
In this paper the influence of non-ideal antennas on the quality of UWB imagery is analyzed. The frequency dependent patterns of different antennas are measured and inserted into a simulation model. The obtained raw data are focused using the Kirchhoff migration method and the positions of the simulated scatterers are extracted. Using these data the positioning error, resolution, and coverage of an...
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