Abstract

Ultra wide band (UWB) technology is prone to be used in wireless personal area networks (WPAN) applications. In these applications transmit and receive antennas are very close to each other and the far field condition assumed in most of the link budget models may not be satisfied. Under near field conditions, variations in the link budget and pulse shape with respect to the far field can be observed. In this work, near field WPAN measurements have been carried out with three different bi-conical antennas in order to analyze the link budget. A new link budget model is proposed and compared with the measurements. Results can be used in the design and coverage analysis of UWB communication systems for WPAN applications

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