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Ultra Wide Band Antennas

Book Description

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.

Table of Contents

  1. Cover
  2. Title Page
  3. Copyright
  4. Preface
  5. Chapter 1: Applications of Ultra Wide Band Systems
    1. 1.1. Introduction
    2. 1.2. UWB regulation: a complex context
    3. 1.3. Formal Ultra Wide Band types
    4. 1.4. Non-formal ultra wide band types
    5. 1.5. Comparison between the different Ultra Wide Band techniques
    6. 1.6. Typical UWB-OFDM applications
    7. 1.7. Specialized UWB-OFDM applications
    8. 1.8. Typical applications of the Impulse Radio UWB, UWB-FH and UWB-FM
    9. 1.9. Impact on the antennas
  6. Chapter 2: Radiation Characteristics of Antennas
    1. 2.1. Introduction
    2. 2.2. How can we characterize an antenna?
    3. 2.3. Radiation fields and radiation power
    4. 2.4. Gain, efficiency and effective aperture
    5. 2.5. Budget link, transfer function
    6. 2.6. Equivalent circuits of the antennas
    7. 2.7. Bandwidth
    8. 2.8. Example of characterization: the triangular probe antenna in F
  7. Chapter 3: Representation, Characterization and Modeling of Ultra Wide Band Antennas
    1. 3.1. Introduction
    2. 3.2. Specificities of UWB antennas: stakes and representation
    3. 3.3. Temporal behavior, distortion
    4. 3.4. Distortion and ideality
    5. 3.5. Performance characterization: synthetic indicators
    6. 3.6. Parsimonious representation by singularity expansion and spherical modes
  8. Chapter 4: Experimental Characterization of UWB Antennas
    1. 4.1. Introduction
    2. 4.2. Measurements of the characteristics of radiation
    3. 4.3. Measurements of the electric characteristics
  9. Chapter 5: Overview of UWB Antennas
    1. 5.1. Classification of UWB antennas
    2. 5.2. Frequency independent antennas
    3. 5.3. Elementary antennas
    4. 5.4. Miniaturization of UWB antennas
    5. 5.5. UWB antennas for surface penetrating radars
  10. Chapter 6: Antenna-Channel Joint Effects in UWB
    1. 6.1. Introduction
    2. 6.2. Recalls on the UWB radio channel
    3. 6.3. Impact of the channel on the performance of UWB systems
    4. 6.4. Effective antenna performance in an ideal channel
    5. 6.5. Effective performance of non-directional antennas in dispersive channels
    6. 6.6. Effective performance of directional antennas in dispersive channels
    7. 6.7. Factorization of antenna patterns
    8. 6.8. Conclusion
  11. Appendices
    1. Appendix A. Reciprocity of the Antennas in Reception and Transmission Modes
      1. A.1. Reciprocity applied to waveguides
      2. A.2. Reciprocity applied to the passive antennas in transmission and reception
    2. Appendix B. Method of the Stationary Phase
  12. Acronyms and Abbreviations
  13. Bibliography
  14. List of Authors
  15. Index