Radio Propagation and Adaptive Antennas for Wireless Communication Links Terrestrial, Atmospheric and Ionospehric Preface. Chapter One Fundamentals of Radio Communications. 1.1. Radio Communication Link. 1.2. Frequency Band for Radio Communications. 1.3. Noise in Radio Communication Links. 1.4. Main Propagation Characteristics. 1.5. Problems in Adaptive Antennas Application. Bibliography. Chapter Two Antenna Fundamentals. 2.1. Radiation Pattern. 2.2. Field Regions of an Antenna. 2.3. Radiation Intensity. 2.4. Directivity and Gain. 2.5. Polarization. 2.6. Terminal Antennas in Free Space. 2.7. Antenna Types. Bibliography. Chapter Three Fundamentals of Wave Propagation in Random Media. 3.1. Main Wave Equations and Random Functions. 3.2. The Perturbation Method for Multiple Scattering. The Mean Perturbed Propagator. The Mean Double Propagator. Mass Operator and Dyson Equation. 3.3. An Exact Solution of 1D-Equation. 3.4. Approximations of the Perturbation Method. 3.5. Random Taylor Expansion at Short Wavelengths. 3.6. An Exact Solution of the Scalar Wave Equation. Approximate Evaluations of the Functional Integral (3.137). 3.7. The Electromagnetic Wave Equation. 3.8. Propagation in Statistically Inhomogeneous Media. 3.9. Propagation in Homogeneous Anisotropic Media. Bibliography. Chapter Four Electromagnetic Aspects of Wave Propagation over Terrain. 4.1. Waves Propagation in Free Space. 4.2. Path Loss in Free Space. 4.3. Radio Propagation Above Flat Terrain. 4.4. Propagation Above Rough Terrain Under LOS Conditions. 4.5. Propagation Above a Smooth Curved Terrain. 4.6. Effect of a Single Obstacle Placed on a Flat Terrain. Bibliography. Chapter Five Terrestrial Radio Communications.. 5.1. Characterization of the Terrain. 5.2. Propagation Scenarios in Terrestrial Communication Links. 5.3. Propagation over a Flat Terrain in LOS Conditions. 5.4. Propagation over a Hilly Terrain in NLOS Conditions. 5.5. Effect of a Building on the Radio Propagation Channel. 5.6. Propagation in Rural Forest Environments. 5.6.1. A Model of Multiple Scattering in a Forested Area. 5.6.2. Comparison with Other Models. 5.7. Propagation in Mixed Residential Areas. 5.8. Propagation in Urban Environments. Bibliography. Chapter Six Effects of the Troposphere on Radio Propagation. 6.1. Main Propagation Effects of the Troposphere as a Spherical Layered Gaseous Continuum. 6.2. Effects of the Hydrometeors on Radio Propagation in the Troposphere. 6.3. Effects of Tropospheric Turbulences on Radio Propagation. 6.4. Link Budget Design for Tropospheric Communication Links. Bibliography. Chapter Seven Ionospheric Radio Propagation. 7.1. Main Ionospheric Effects on Radio Propagation. 7.2. Effects of the Inhomogeneous Ionosphere on Radio Propagation. 7.3. Back and Forward Scattering of Radio Waves by Small-Scale Ionospheric Inhomogeneities. Bibliography. Chapter Eight Indoor Radio Propagation. 8.1. Main Propagation Processes and Characteristics. 8.2. Modeling of Loss Characteristics in Vario