Link Budget Analysis and Modeling of Short-Range UWB Channels

Ultrawideband (UWB) technology is an attractive alternative for short-range applications, e.g., wireless personal area networks. 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 satisfie...

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Bibliographic Details
Published in:IEEE transactions on antennas and propagation 2008-08, Vol.56 (8), p.2730-2738
Main Authors: Irahhauten, Z., Dacuna, J., Janssen, G.J.M., Nikookar, H., Yarovoy, A.G., Ligthart, L.P.
Format: Article
Language:English
Subjects:
Antenna measurements
Antennas
Applied sciences
Budgeting
Business and industry local networks
Channels
Communication systems
Design engineering
Equipments and installations
Exact sciences and technology
Frequency measurement
Link budget
Links
Mobile radiocommunication systems
near-field measurements
Networks and services in france and abroad
Phase error
Phase measurement
Pulse shaping methods
Radiocommunications
Receiving antennas
Shape
Size measurement
Systems, networks and services of telecommunications
Telecommunications
Telecommunications and information theory
Teleprocessing networks. Isdn
Transmission and modulation (techniques and equipments)
Ultra wideband antennas
Ultra wideband technology
Ultrawideband
ultrawideband (UWB) antenna
UWB propagation channel
Wideband communications
Wireless personal area networks
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Description
Summary:Ultrawideband (UWB) technology is an attractive alternative for short-range applications, e.g., wireless personal area networks. 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 compared to the far-field can be observed. In this work, a novel line-of-sight UWB link budget model for very short distances is proposed and validated with measurements using different types of antennas. The proposed model, which takes into account all main near-field effects (i.e., phase error, antenna mismatch and reradiation between antennas) and includes frequency, antenna size and orientation as parameters, shows a good agreement with the simulations and the measurements. This model has also been applied to dispersive antennas (e.g., notch-antennas), and can be used in the design and analysis of short-range UWB communication systems.
ISSN:0018-926X
1558-2221
DOI:10.1109/TAP.2008.927542