La " Statistica " del Regno di Napoli del 1811 : relazioni sulla provincia di Salerno / Leopoldo Cassese

• Record Nr.: UNINA990007519180403321
• Autore: Cassese, Leopoldo <1901-1960>
• Pubbl/distr/stampa: Salerno : tipografia Ispirato e Cuomo, 1955
• Descrizione fisica: 289 p. ; 22 cm
• Collana: Collana storico economica del salernitano , Fonti ; 1
• Locazione: ILFGE
• Collocazione: E-04-127
• Lingua di pubblicazione: Italiano
• Formato: Materiale a stampa
• Livello bibliografico: Monografia

Anechoic range design for electromagnetic measurements / / .Vince Rodriguez

• Record Nr.: UNINA9910824641003321
• Autore: Rodriguez Vince
• Pubbl/distr/stampa: Boston : , : Artech House, , [2019]; [Piscataqay, New Jersey] : , : IEEE Xplore, , [2019]
• ISBN: 1-63081-539-X
• Descrizione fisica: 1 online resource (321 pages)
• Collana: Artech House electromagnetics library
• Disciplina: 621.384
• Soggetti: Antenna radiation patterns; Anechoic chambers; Damping (Mechanics)
• Lingua di pubblicazione: Inglese
• Formato: Materiale a stampa
• Livello bibliografico: Monografia
• Nota di bibliografia: Includes bibliographical references and index
• Nota di contenuto: Anechoic Range Design for Electromagnetic Measurements; Contents; Foreword; Introduction; The Beginning; The Early Years; Developing My ; Own Approach; About This Book; Chapter 1 Basic Electromagnetics; 1.1 Introduction; 1.2 Maxwell's Equations; 1.3 Boundary Conditions and Wave Propagation; 1.3.1 Boundary Conditions; 1.3.2 Wave Propagation; 1.3.3 Wave Propagation in Lossy Media; 1.3.4 Incident and Reflected Waves; 1.4 Theorems of Electromagnetics; 1.4.1 Image Theory; 1.4.2 Reciprocity Theorem; 1.4.3 Surface Equivalence Theorem; 1.5 Antenna Basics; 1.5.1 Radiation Problems; 1.5.2 Radiation Regions1.5.3 The Herzian Dipole Antenna; 1.6 About Numerical Methods; References; Chapter 2 Measurement Ranges; 2.1 Indoor Ranges; 2.2 Antenna Measurements; 2.2.1 Pattern Parameters; 2.3 Antenna Ranges; 2.3.1 Far-Field Ranges; 2.3.2 The Antenna Measurement System; 2.3.3 Link Budgets; 2.4 Selecting the Range; 2.4.1 Indoor Far-Field Ranges; 2.4.2 Near-Field Ranges; 2.4.3 Compact Ranges; References; Chapter 3 Radio-Frequency Absorber; 3.1 Absorber Family; 3.2 Electrically Lossy Absorbers; 3.2.1 Absorber Theory; 3.2.2 Absorber Manufacturing; 3.2.3 Types of Electrically Lossy Absorbers3.3 Magnetically Lossy Absorbers; 3.3.1 Ferrite Tiles; 3.3.2 Ferrite "Cones"; 3.4 Hybrid Absorbers; 3.4.1 The Mismatch Issue; 3.5 Power Handling; References; Appendix 3A: MATLAB(a) Scripts; 3A.1 Simulation of a Pyramidal Shape; 3A.2 Normal Incidence Reflectivity of Ferrite Tile; 3A.3 Computation of Reflectivity Using Rodriguez's Equations; Chapter 4 RF Shielding; 4.1 To Shield or Not To Shield?; 4.1.1 Phase-Locked Measurements; 4.1.2 Reasons for Shielding; 4.1.3 What Level of Shielding Is Required?; 4.2 Shield; 4.3 Doors; 4.4 Filters; 4.5 Penetrations; 4.6 Testing the Shielding EffectivenessReferences; Chapter 5 Anechoic Ranges for Far-Field Measurements; 5.1 Introduction; 5.2 The Rectangular Anechoic Range; 5.2.1 Sizing the Chamber; 5.2.2 Absorber Layout; 5.2.3 Positioners and Range Antennas; 5.3 The Tapered Anechoic Chamber; 5.3.1 Theory of the Tapered Chamber; 5.3.2 Sizing the Chamber; 5.3.3 Absorber Layout; 5.3.4 Concerns and Limitations of the Tapered Chamber; 5.4 Error and Uncertainty Analysis in a Far-Field Range; 5.4.1 Contributions from the Absorber Treatment; 5.4.2 Contributions from the Positioning Equipment; 5.5 Range Validation Testing5.6 Conclusion; References; Appendix 5A: MATLAB Scripts; 5A.1 Hickman and Lyon Ground Reflection Range Analogy; 5A.2 Taper Array Factor; Chapter 6 Anechoic Ranges for Near-Field Measurements; 6.1 A Bit of History; 6.2 The PNF Range; 6.2.1 Sizing the Chamber; 6.2.2 Absorber Layout; 6.3 The SNF Range; 6.3.1 Fixed-Probe Implementations; 6.3.2 Sizing the Chamber; 6.3.3 Absorber Layout; 6.3.4 Movable Probe and Movable AUT SNF; 6.3.5 Sizing the Chamber; 6.3.6 Absorber Layout; 6.4 The CNF Range; 6.4.1 Sizing the Chamber; 6.4.2 Absorber Layout