Page 8 - Antennas for Base Stations in Wireless Communications

Contents

Preface xiii
Acknowledgments xv
Introduction xvii

Chapter 1. Fundamentals of Antennas 1
1.1 Basis Parameters and Definitions of Antennas 1
1.1.1 Input Impedance and Equivalent Circuits 2
1.1.2 Matching and Bandwidth 3
1.1.3 Radiation Patterns 4
1.1.4 Polarization of the Antenna 6
1.1.5 Antenna Efficiency 9
1.1.6 Directivity and Gain 10
1.1.7 Intermodulation 13
1.2 Important Antennas in This Book 15
1.2.1 Patch Antennas 15
1.2.2 Suspended Plate Antennas 17
1.2.3 Planer Inverted-L/F Antennas 18
1.2.4 Planer Dipoles/Monopoles 20
1.3 Basic Measurement Techniques 21
1.3.1 Measurement Systems for Impedance Matching 21
1.3.2 Measurement Setups for Far-Zone Fields 22
1.3.3 Measurement Systems for Intermodulation 26
1.4 System Calibration 28
1.5 Remarks 28
References 29
Chapter 2. Base Station Antennas for Mobile Radio Systems 31

2.1 Operational Requirements 32
2.2 Antenna Performance Parameters 33
2.2.1 Control of Antenna Parameters 36
2.3 The Design of a Practical Base Station Antenna 44
2.3.1 Methods of Construction 44
2.3.2 Array Design 51
2.3.3 Dimensioning the Array 51
2.3.4 Multiband and Wideband Arrays 62
2.3.5 Feed Networks 67

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