Antenne e propagazione per sistemi wireless
Indice degli argomenti
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- Introduction
- Sytem types
- Info
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- Entities
- Mathematical equations
- Relationship with physics
2.Maxwell’s equations in differential form
- Maxwell’s equations
3.Boundary conditions
3.The wave equation
4.Time-harmonic regime
- Dynamic fields
- Comments
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- Motivation
- SV method
- Helmholtz eq.
- Plane waves
- Classification
- Traveling waves
- Plane waves in isotropic media
- Phase velocity
- Poynting vector
- Motivation
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- Introduction
- Friis transmission equation
- Reflection
- Plane Earth reflection
- Surface scattering
- Diffraction
- Knife-edge
- Fresnel zones
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- Introduction
- Examples
- Loss-less media
- Lossy media
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- Introduction
- Reflection & refraction
- Snell's laws
- Fresnel coefficients
- Geometric optics
- Surface scattering
- Rayleigh criterion
- Diffraction
- Knife edge
- Fresnel zones
- GTD
- UTD
- Introduction
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- Introduction
- Link budget
- Receiver sensitivity
- Path loss
- Free space loss
- Plane Earth loss
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- Introduction
- Free space path loss
- Earth profile
- Refraction
- Multipath
- Diffraction loss
- Geometrical based methods
- Diffraction integral
- Objects of finite size
- Clutter
- Diversity methods
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- Introduction
- Path loss
- Tropospheric effects
- Rain attenuation
- Empirical model - ITU
- Gaseous absorption
- Scintillation
- Signal depolarization
- Sky noise
- Ionospheric effects
- Refraction
- Faraday rotation
- Link budget
- Examples
- Direct Broadcasting satellite
- Deep space communication
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- Introduction
- Path loss
- Empirical models
- Okumura-Hata
- Physical models
- Ray tracing
- Multiple diffraction integral
- Semi-empirical models
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- Introduction
- Shadowing
- Theoretical facts
- Coverage
- Edge of the cell
- Whole cell coverage
- Correlated shadowing
- Autocorrelation
- Cross-correlation
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- Introduction
- AWGN channels
- Fast fading
- Narrowband fading
- NLOS
- LOS
- Second order statistics
- Autocorrelation function
- Simulation
- Reverberating chamber
- Wideband fading
- Effects
- Channel model
- Frequency domain
- Overcome wideband fading
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- Propagation models for the characterisation of wireless channels
- Measurements
- Conclusions
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- Introduction
- Physical models
- LOS
- NLOS
- Empirical models
- Dual-slope
- Other impairments
- Introduction
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- Introduction
- Propagation issues
- Scattering mechanisms
- Penetration loss
- Fading
- Tunnels
- Waveguide approach
- Distributed antenna system
- Passive DAS
- Active DAS
- Digital distribution
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- Introduction
- Technological challenges
- Spectrum allocation
- Propagation mechanisms
- Scenarios
- Radio Access Network
- Spot-cells
- Path loss models
- EMLab
- Smart antennas
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- Introduction
- Mobile terminal antennas
- Electrically small antennas
- Smartphones
- Laptops
- BS antennas
- Smart antenna
- Theoretical basis
- Processing
- SDMA
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- Introduction
- Reception issues
- Human body
- Antenna's performance
- Analysis of radiation performance
- Parameters
- Measurement setup
- Anechoic chamber
- Measurement configuration
- Measurements
- Reverberation chamber
- Measurement configuration
- Measurements
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