book

Ultra Wide Band Antennas

by Xavier Begaud

December 2010

Intermediate to advanced

278 pages

6h 49m

English

Wiley

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1.1. Introduction1.2. UWB regulation: a complex context1.3. Formal Ultra Wide Band types1.4. Non-formal ultra wide band types1.5. Comparison between the different Ultra Wide Band techniques1.6. Typical UWB-OFDM applications1.7. Specialized UWB-OFDM applications1.8. Typical applications of the Impulse Radio UWB, UWB-FH and UWB-FM1.9. Impact on the antennas
2.1. Introduction2.2. How can we characterize an antenna?2.3. Radiation fields and radiation power2.4. Gain, efficiency and effective aperture2.5. Budget link, transfer function2.6. Equivalent circuits of the antennas2.7. Bandwidth2.8. Example of characterization: the triangular probe antenna in F
3.1. Introduction3.2. Specificities of UWB antennas: stakes and representation3.3. Temporal behavior, distortion3.4. Distortion and ideality3.5. Performance characterization: synthetic indicators3.6. Parsimonious representation by singularity expansion and spherical modes
4.1. Introduction4.2. Measurements of the characteristics of radiation4.3. Measurements of the electric characteristics
5.1. Classification of UWB antennas5.2. Frequency independent antennas5.3. Elementary antennas5.4. Miniaturization of UWB antennas5.5. UWB antennas for surface penetrating radars
6.1. Introduction6.2. Recalls on the UWB radio channel6.3. Impact of the channel on the performance of UWB systems6.4. Effective antenna performance in an ideal channel6.5. Effective performance of non-directional antennas in dispersive channels6.6. Effective performance of directional antennas in dispersive channels6.7. Factorization of antenna patterns6.8. Conclusion

A.1. Reciprocity applied to waveguidesA.2. Reciprocity applied to the passive antennas in transmission and reception

Overview

Ultra Wide Band Technology (UWB) has reached a level of maturity that allows us to offer wireless links with either high or low data rates. These wireless links are frequently associated with a location capability for which ultimate accuracy varies with the inverse of the frequency bandwidth. Using time or frequency domain waveforms, they are currently the subject of international standards facilitating their commercial implementation. Drawing up a complete state of the art, Ultra Wide Band Antennas is aimed at students, engineers and researchers and presents a summary of internationally recognized studies.