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1. |
Record Nr. |
UNINA9910813469203321 |
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Autore |
Boyes Stephen J. |
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Titolo |
Reverberation chambers : theory and applications to EMC and antenna measurements / / Stephen J Boyes, Yi Huang |
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Pubbl/distr/stampa |
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West Sussex, England : , : Wiley, , 2016 |
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©2016 |
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ISBN |
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1-118-90626-8 |
1-118-90625-X |
1-118-90627-6 |
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Descrizione fisica |
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1 online resource (254 p.) |
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Disciplina |
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Soggetti |
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Antennas (Electronics) - Design and construction - Technique |
Electromagnetic measurements |
Radio frequency oscillators |
Electromagnetic compatibility |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Note generali |
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Description based upon print version of record. |
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Nota di bibliografia |
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Includes bibliographical references and index. |
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Nota di contenuto |
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Title Page; Copyright Page; Contents; About the Authors; Acknowledgements; Chapter 1 Introduction; 1.1 Background; 1.2 This Book; References; Chapter 2 Reverberation Chamber Cavity Theory; 2.1 Introduction; 2.2 Cavity Modes and Electromagnetic Fields; 2.3 Mode Stirring Techniques; 2.3.1 Mechanical Stirring; 2.3.2 Polarisation Stirring; 2.3.3 Platform and Position Stirring; 2.3.4 Frequency Stirring; 2.4 Plane Wave Angle of Arrival; 2.5 Average Mode Bandwidths; 2.6 Chamber Quality (Q) Factor; 2.7 Statistical Forms; 2.7.1 Statistical Methods of Analysis |
2.7.2 Statistical Forms of Measured Magnitudes 2.7.3 Statistical Distribution of Complex Samples; 2.7.4 Statistical Distribution of Measured Power; 2.7.5 Statistical Distribution of Measured Phase; 2.7.6 Concluding Remarks and Recommendations; 2.8 Line of Sight Elements; 2.9 Reverberation Chamber as a Radio Propagation Channel; 2.9.1 Channel Parameters; 2.9.2 Coherence Bandwidth; 2.9.3 Doppler Shift Frequency; 2.9.4 Summary; References; Chapter 3 Mechanical Stirrer Designs and Chamber Performance Evaluation; 3.1 Introduction; 3.2 |
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Paddle Design Methodology; 3.3 Numerical Analysis |
3.3.1 Effect of the Number of Cuts 3.3.2 Effect of the Periodicity of the Cuts; 3.3.3 Effect of the Shape of the Cuts; 3.3.4 Complex Nature of the Cuts; 3.3.5 Variation in Paddle Dimensions; 3.4 Comments on Practical Validation; 3.5 Measurement Parameters for Validation; 3.6 Measurement Results; 3.6.1 Standard vs New Designs: Unloaded Chamber Uncertainty; 3.6.2 Standard vs New Designs: Loaded Chamber; 3.7 Summary; References; Chapter 4 EMC Measurements inside Reverberation Chambers; 4.1 Introduction to EMC; 4.2 EMC Standards; 4.3 EMC Measurements and Tests |
4.4 EMC Measurements Inside Reverberation Chambers 4.4.1 Relevant EMC Standards Using Reverberation Chambers; 4.4.2 Chamber Characterisation; 4.4.3 Radiated Immunity Tests; 4.4.4 Radiated Emission Measurements; 4.4.5 An Example of Radiated Emission Measurements; 4.5 Comparison of Reverberation Chamber and Other Measurement Facilities for EMC Measurements; 4.6 Conclusions; Acknowledgements; References; Chapter 5 Single Port Antenna Measurements; 5.1 Introduction; 5.2 Definitions and Proof: Antenna Efficiency; 5.2.1 Radiation Efficiency; 5.2.2 Total Radiation Efficiency |
5.3 Definitions: Textile Antennas 5.4 Measurement Procedures; 5.5 Free Space Measurement Investigation; 5.5.1 Free Space Performance; 5.5.2 General Problems to Avoid; 5.6 On-Body Antenna Measurements; 5.6.1 Chest (0 mm) Body Location Investigation; 5.6.2 Elbow (0 mm) Bent Location Investigation; 5.6.3 Back (0 mm) Body Location Investigation; 5.6.4 Chest 20 mm Body Location Investigation; 5.7 Theoretical and Simulated Evidence; 5.8 Measurement Uncertainty; 5.9 Summary; References; Chapter 6 Multiport and Array Antennas; 6.1 Introduction; 6.2 Multi-port Antennas for MIMO Applications |
6.3 Measurement Parameters |
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2. |
Record Nr. |
UNINA9910299450203321 |
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Titolo |
The Beka-Ocizla Cave System : Karstological Railway Planning in Slovenia / / edited by Martin Knez, Metka Petrič, Tadej Slabe, Stanka Šebela |
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Pubbl/distr/stampa |
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Cham : , : Springer International Publishing : , : Imprint : Springer, , 2015 |
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ISBN |
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Edizione |
[1st ed. 2015.] |
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Descrizione fisica |
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1 online resource (108 p.) |
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Collana |
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Cave and Karst Systems of the World, , 2364-4605 |
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Disciplina |
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055 |
363.7063 |
551.4 |
624.15 |
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Soggetti |
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Geology |
Physical geography |
Engineering geology |
Human geography |
Environmental monitoring |
Physical Geography |
Geoengineering |
Human Geography |
Environmental Monitoring |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Note generali |
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Description based upon print version of record. |
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Nota di bibliografia |
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Includes bibliographical references. |
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Nota di contenuto |
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Introduction -- Background for the Study -- Morphological Units of the Region -- Geomorphologic Analysis of the Region -- Karstification of the Kras -- Types of Caves and their Form -- Development of the Aquifer -- Biology of the Underground Habitats -- Hydrogeological Structure of the Alignments Area -- Directions and Characteristics of the Flow of Underground Water -- Influence of Construction of the Railway Line on Karst Waters -- Proposal for Further Research -- Caves of the Contact Karst of Beka and Ocizla -- Conclusion -- Appendixes (Geology and Karst Caves/Hydrogeological map). |
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Sommario/riassunto |
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A proposed railway on the 5th European Railway Corridor (Venice-Kiev) between the northern Adriatic ports of Koper (Slovenia) and Trieste (Italy) and the interior of Slovenia required extensive karstological studies and planning. This book contains the knowledge gained from these studies as well as further information on the regional karst surface and underground, the karst hydrogeology, and the specific caves of the Beka-Ocizla cave system. |
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