Foundations of Antenna Theory and Techniques

Preface

List of principle symbols

1. Basic concepts

1.1 Radiation

1.2 The Hertzian dipole

1.3 Hertzian dipole polar pattern

1.4 The Hertzian dipole reconsidered

References

Problems

2. Electromagnetic wave propagation and power flow

2.1 Maxwell equation basics

2.2 Plane wave propagation in space

2.3 Power flow

2.4 Antenna directivity, power gain and efficiency

References

Problems

3. Linear dipole antennas

3.1 Dipole antenna of finite length

3.2 Current distribution on a finite-length dipole (far field effect of a sinusodial current)

3.3 Dipole antenna radiation resistance

3.4 Short dipole antenna

3.5 Gain of a half-wave dipole relative to a Hertzian dipole and power transfer

References

Problems

4. Antenna array techniques

4.1 Radiation patterns for two antennas

4.2 One-dimensional linear arrays and far-field transformation

4.3 Two-dimensional stacked arrays

4.4 Non-uniform current excitation array

4.5 Antenna input impedance

4.6 Induced-emf method and mutual coupling

4.7 End-fire array example with mutual coupling

4.8 Dipole antennas in relation to a ground plane

References

Problems

5. Systems and characterisation considerations

5.1 Effective length of an antenna and reciprocity

5.2 Antenna aperture and the free-space link equation

5.3 Effective temperature of an antenna and noise effects

5.4 Polarisation of plane electromagnetic waves

5.5 Distance to antenna far field

5.6 Clearance

5.7 Antenna characterisation principles

References

Problems

6. Antenna-matching techniques

6.1 Transmission line principles

6.2 Lumped matching circuits

6.3 Reactive matching circuits

6.4 Balun matching

6.5 Power splitting - combining networks

6.6 Impedance matching and the Smith chart

References

Problems

7. Basic antenna types

7.1 Small rectangular loop antennas

7.2 Slot antennas

7.3 Yagi antennas

7.4 Rectangular microstrip patch antennas

7.5 Reflector antennas

7.6 Helical antennas

7.7 Horn antennas

7.8 Straight wire travelling-wave antennas

7.9 Planar inverted-F antennas

7.10 Dielectric resonator antennas

7.11 Reflectarray antennas

7.12 Equi-angular spiral antennas

7.13 Fractal antennas

References

Problems

Appendices

8.1 Linear array factor program

8.2 Reciprocity in a two-port network

8.3 Noise equivalent bandwidth, minimum discernible level and noise temperature measurement

8.4 Scattering parameter matrix

Biblography

Glossary of terms

Index