**Table of Contents**
Preface
List of principle symbols
Basic concepts
Radiation
The Hertzian dipole
Hertzian dipole polar pattern
The Hertzian dipole reconsidered
References
Problems
Electromagnetic wave propagation and power flow
Maxwell equation basics
Plane wave propagation in space
Power flow
Antenna directivity, power gain and efficiency
References
Problems
Linear dipole antennas
Dipole antenna of finite length
Current distribution on a finite-length dipole (far field effect of a sinusodial current)
Dipole antenna radiation resistance
Short dipole antenna
Gain of a half-wave dipole relative to a Hertzian dipole and power transfer
References
Problems
Antenna array techniques
Radiation patterns for two antennas
One-dimensional linear arrays and far-field transformation
Two-dimensional stacked arrays
Non-uniform current excitation array
Antenna input impedance
Induced-emf method and mutual coupling
End-fire array example with mutual coupling
Dipole antennas in relation to a ground plane
References
Problems
Systems and characterisation considerations
Effective length of an antenna and reciprocity
Antenna aperture and the free-space link equation
Effective temperature of an antenna and noise effects
Polarisation of plane electromagnetic waves
Distance to antenna far field
Clearance
Antenna characterisation principles
References
Problems
Antenna-matching techniques
Transmission line principles
Lumped matching circuits
Reactive matching circuits
Balun matching
Power splitting - combining networks
Impedance matching and the Smith chart
References
Problems
Basic antenna types
Small rectangular loop antennas
Slot antennas
Yagi antennas
Rectangular microstrip patch antennas
Reflector antennas
Helical antennas
Horn antennas
Straight wire travelling-wave antennas
Planar inverted-F antennas
Dielectric resonator antennas
Reflectarray antennas
Equi-angular spiral antennas
Fractal antennas
References
Problems
Appendices
Linear array factor program
Reciprocity in a two-port network
Noise equivalent bandwidth, minimum discernible level and noise temperature measurement
Scattering parameter matrix
Bibliography
Glossary of terms
Index |