Dedicated to a complete presentation on all aspects of reverberation chambers, this book provides the physical principles behind these test systems in a very progressive manner. The detailed panorama of parameters governing the operation of electromagnetic reverberation chambers details various applications such as radiated immunity, emissivity, and shielding efficiency experiments.
In addition, the reader is provided with the elements of electromagnetic theory and statistics required to take full advantage of the basic operational rules of reverberation chambers, including calibration procedures. Comparisons with other testing systems (TEM cells, anechoic chambers) are also discussed.
Rezensionen / Stimmen
"The book is recommended both as a reference for researchers and professionals working with reverberation chambers, and as a textbook for a course on reverberation chambers." (Radio Science Bulletin, 1 December 2011)
Sprache
Verlagsort
Produkt-Hinweis
Maße
Höhe: 241 mm
Breite: 159 mm
Dicke: 30 mm
Gewicht
ISBN-13
978-1-84821-293-0 (9781848212930)
Copyright in bibliographic data and cover images is held by Nielsen Book Services Limited or by the publishers or by their respective licensors: all rights reserved.
Schweitzer Klassifikation
Philippe Besnier is head of EMC research activities in a public research lab at IETR, Rennes, France. He is a senior member of the IEEE society.
Bernard Demoulin is Emeritus Professor at University of Lille, France. He was head of an EMC research team in a public research lab at IEMN, Lille, France. He is a corresponding member of URSI. His activities and field of expertise focus on EMC measurement techniques.
Autor*in
IETR/INSA, Rennes, France
IEMN, Lille, France
Preface xiii
Foreword xv
Paolo CORONA
Introduction xix
Chapter 1. Position of the Reverberation Chambers in Common Electromagnetic Tests 1
1.1. Introduction 1
1.2. Electromagnetic fields and plane waves 2
1.3. Electromagnetic tests in confined areas 13
1.4. Discussion 26
1.5. Bibliography 28
Chapter 2. Main Physical Features of Electromagnetic Cavities 29
2.1. Introduction 29
2.2. Reduction of the modes in a 1D cavity 30
2.3. Physical features of an empty rectangular cavity 44
2.4. The 3D cavity operating in stirred modes 69
2.5. Discussion 77
2.6. Bibliography 80
Chapter 3. Statistical Behavior of Stirred Waves in an Oversized Cavity 83
3.1. Introduction 83
3.2. Descriptions of the ideal random electromagnetic field 84
3.3. Simulation of the properties of an ideal random field 93
3.4. Contribution of the statistical tests 104
3.5. Balance of power in a reverberation chamber 121
3.6. Discussion 130
3.7. Bibliography 132
Chapter 4. Impact of the Physical and Technological Parameters of a Reverberation Chamber 135
4.1. Introduction 135
4.2. Main parameters for reverberation chamber design 136
4.3. The usual techniques of mode stirring 153
4.4. The characterization of reverberation chambers 164
4.5. Discussion 188
4.6. Bibliography 190
Chapter 5. Radiated Immunity Tests in a Reverberation Chamber 193
5.1. Introduction 193
5.2. The calibration process 194
5.3. Examples of calibration results 206
5.4. Implementing of the immunity test for a piece of equipment 210
5.5. Immunity test in reverberation and anechoic chambers 220
5.6. Rectangular components of the electric field and the total electric field 226
5.7. Discussion 228
5.8. Bibliography 230
Chapter 6. Emissivity Tests in Reverberation Chambers 233
6.1. Introduction 233
6.2. A few notions on electromagnetic radiation and antennas 234
6.3. Measurement of the total radiated power in free space 249
6.4. Measurement of the unintentional emission of a device under test 252
6.5. Measurement examples of the total radiated power 262
6.6. Total radiated power and radiated emissivity 269
6.7. Measurement of the efficiency and of the diversity gain of the antennas 272
6.8. Discussion 275
6.9. Bibliography 276
Chapter 7. Measurement of the Shielding Effectiveness 279
7.1. Introduction 279
7.2. Definitions of the shielding effectiveness 280
7.3. Measurement of the effectiveness of shielded cables and connectors in reverberation chambers 287
7.4. Measurement of the attenuation of the shielded enclosures 302
7.5. Measurement of the shielding effectiveness of the materials 307
7.6. Discussion 316
7.7. Bibliography 318
Chapter 8. Mode Stirring Reverberation Chamber: A Research Tool 321
8.1. Introduction 321
8.2. A non-ideal random electromagnetic field 324
8.3. Studying the correlation of a set of measurements 336
8.4. Quantization of the scattered and coherent fields in a reverberation chamber 349
8.5. Discussion 356
8.6. Bibliography 358
APPENDICES 361
Appendix 1. Notion of Probability 363
A1.1. The random variable concept 363
A1.2. Probability concept from intuition 363
A1.3. Probability density function (pdf) 364
A1.4. Computation of moments 365
A1.5. Centered and normalized variables 366
A1.6. Computation of the variance and standard deviation 367
A1.7. Probability distributions 367
A1.8. The cumulative distribution function (cdf) 369
A1.9. The ergodism notion 369
A1.10. Features of the random stationary variables 372
A1.11. The characteristic function 373
A1.12. Summary of the main probability distributions 375
A1.13. Tables of numerical values of the normal distribution integrals 378
A1.14. Bibliography 379
Appendix 2. Formulas of the Quality Factor of a Rectangular Cavity 381
A2.1. Quality factor of the TMm n p mode 381
A2.2. Calculation of the average Q quality factor 382
A2.3. Bibliography 384
Appendix 3. Total Field and Total Power Variables 385
A3.1. Total field variables 385
A3.2. ?2 variable attached to the total field 386
A3.3. Total field probability density function 386
A3.4. Calculation of the mean of the total field 387
A3.5. The pdf of the total power 388
A3.6. Calculation of the mean total powers 389
Appendix 4. Calculation of the Variances of ??, ??, ?? 391
A4.1. Variance of the ?? and ?? variables 391
A4.2. Variance of the ?? variable 392
Appendix 5. Electric Dipole Formulas 395
A5.1. Complete formulas of the electric dipole 395
A5.2. Near-field formulas of the electric dipole 397
A5.3. Far-field formulas of the electric dipole 397
A5.4. Bibliography 398
Index 399
