Muutke küpsiste eelistusi

E-raamat: Antennas for Global Navigation Satellite Systems [Wiley Online]

(Queen Mary, University of London), (Beijing University of Posts), (Queen Mary, University of London), (Queen Mary, University of London), (Queen Mary, University of London)
  • Formaat: 232 pages
  • Ilmumisaeg: 23-Mar-2012
  • Kirjastus: John Wiley & Sons Inc
  • ISBN-10: 1119969514
  • ISBN-13: 9781119969518
Teised raamatud teemal:
  • Wiley Online
  • Hind: 135,33 €*
  • * hind, mis tagab piiramatu üheaegsete kasutajate arvuga ligipääsu piiramatuks ajaks
  • Formaat: 232 pages
  • Ilmumisaeg: 23-Mar-2012
  • Kirjastus: John Wiley & Sons Inc
  • ISBN-10: 1119969514
  • ISBN-13: 9781119969518
Teised raamatud teemal:
This book addresses the fundamentals and practical implementations of antennas for Global Navigation Satellite Systems (GNSS) In this book, the authors discuss the various aspects of GNSS antennas, including fundamentals of GNSS, design approaches for the GNSS terminal and satellite antennas, performance enhancement techniques and effects of users presence and surrounding environment on these antennas.  In addition, the book will provide the reader with an insight into the most important aspects of the GNSS antenna technology and lay the foundations for future advancements.  It also includes a number of real case studies describing the ways in which antenna design can be adapted to conform to the design constraints of practical user devices, and also the management of potential adverse interactions between the antenna and its platform.

Key Features:





Covers the fundamentals and practical implementations of antennas for Global Navigation Satellite Systems (GNSS) Describes technological advancements for GPS, Glonass, Galileo and Compass Aims to address future issues such as multipath interference, in building operation, RF interference in mobile Includes a number of real case studies to illustrate practical implementation of GNSS

This book will be an invaluable guide for antenna designers, system engineers, researchers for GNSS systems and postgraduate students (antennas, satellite communication technology). R&D engineers in mobile handset manufacturers, spectrum engineers will also find this book of interest.
Preface ix
1 Fundamentals of GNSS
1(20)
1.1 History of GNSS
1(1)
1.2 Basic Principles of GNSS
2(6)
1.2.1 Time-Based Radio Navigation
2(3)
1.2.2 A 3D Time-Based Navigation System
5(3)
1.3 Operation of GPS
8(7)
1.4 Applications Including Differential GPS
15(6)
References
18(3)
2 Fundamental Considerations for GNSS Antennas
21(20)
2.1 GNSS Radio Wave Propagation
21(5)
2.1.1 Plane Waves and Polarisation
21(2)
2.1.2 GNSS Radio Wave Propagation and Effects
23(3)
2.1.3 Why CP Waves in GNSS?
26(1)
2.2 Antenna Design Fundamentals
26(5)
2.2.1 Antenna Fundamental Parameters
26(3)
2.2.2 LP Antenna Design and Example
29(2)
2.3 CP Antenna Design
31(10)
2.3.1 CP Antenna Fundamentals and Types
31(4)
2.3.2 Simple CP Antenna Design Example
35(1)
2.3.3 Technical Challenges in Designing GNSS Antennas
36(4)
References
40(1)
3 Satellite GNSS Antennas
41(14)
3.1 Navigation Antenna Requirements
41(1)
3.2 Types of Antenna Deployed
41(9)
3.3 Special Considerations for Spacecraft Antenna Design
50(5)
3.3.1 Passive Intermodulation Effects
50(2)
3.3.2 Multipactor Effects
52(1)
References
52(3)
4 Terminal GNSS Antennas
55(26)
4.1 Microstrip Antenna for Terminal GNSS Application
55(11)
4.1.1 Single-Feed Microstrip GNSS Antennas
55(5)
4.1.2 Dual-Feed Microstrip GNSS Antennas
60(4)
4.1.3 Design with Ceramic Substrate
64(2)
4.2 Spiral and Helix GNSS Antennas
66(7)
4.2.1 Helix Antennas
66(5)
4.2.2 Spiral Antennas
71(2)
4.3 Design of a PIFA for a GNSS Terminal Antenna
73(8)
References
79(2)
5 Multimode and Advanced Terminal Antennas
81(30)
5.1 Multiband Terminal Antennas
81(14)
5.1.1 Multiband Microstrip GNSS Antennas
82(6)
5.1.2 Multiband Helix Antennas for GNSS
88(7)
5.2 Wideband CP Terminal Antennas
95(7)
5.2.1 Wideband Microstrip Antenna Array
95(1)
5.2.2 High-Performance Universal GNSS Antenna Based on Spiral Mode Microstrip Antenna Technology
96(1)
5.2.3 Wideband CP Hybrid Dielectric Resonator Antenna
96(2)
5.2.4 Multi-Feed Microstrip Patch Antenna for Multimode GNSS
98(4)
5.3 High-Precision GNSS Terminal Antennas
102(9)
References
109(2)
6 Terminal Antennas in Difficult Environments
111(38)
6.1 GNSS Antennas and Multipath Environment
111(2)
6.2 Statistical Modelling of Multipath Environment for GNSS Operation
113(6)
6.2.1 GPS Mean Effective Gain (MEGGPS)
114(2)
6.2.2 GPS Angle of Arrival Distribution (AOAGPS)
116(1)
6.2.3 GPS Coverage Efficiency (ηc)
117(2)
6.3 Open Field Test Procedure
119(2)
6.3.1 Measurement of GPS Mean Effective Gain
119(1)
6.3.2 Measurement of GPS Coverage Efficiency
120(1)
6.3.3 Measurement Set-Up
120(1)
6.4 Performance Assessment of GNSS Mobile Terminal Antennas in Multipath Environment
121(12)
6.4.1 Design of Tested GPS Antennas
122(5)
6.4.2 Comparison Based on Simulated and Measured 3D Radiation Patterns
127(2)
6.4.3 Comparison Based on Measured 3D Radiation Patterns and Actual Field Tests
129(4)
6.5 Performance Dependence on GNSS Antenna Orientation
133(6)
6.6 Performance Enhancement of GNSS Mobile Terminal Antennas in Difficult Environments
139(10)
6.6.1 Assisted GPS
140(1)
6.6.2 GPS Signal Reradiation
140(1)
6.6.3 Beamforming
141(1)
6.6.4 Diversity Antennas
141(6)
References
147(2)
7 Human User Effects on GNSS Antennas
149(32)
7.1 Interaction of Human Body and GNSS Antennas
149(1)
7.2 Effects of Human Body on GNSS Mobile Terminal Antennas in Difficult Environments
150(31)
7.2.1 Design of Tested GPS Antennas
151(1)
7.2.2 Effects of Human Hand and Head Presence
151(15)
7.2.3 Effects of Complete Human Body Presence
166(13)
References
179(2)
8 Mobile Terminal GNSS Antennas
181(26)
8.1 Introduction
181(2)
8.2 Antenna Specification Parameters
183(5)
8.2.1 Polarisation
183(1)
8.2.2 Radiation Patterns
184(1)
8.2.3 Impedance
185(1)
8.2.4 Gain/Efficiency
186(1)
8.2.5 Weight
187(1)
8.2.6 Bandwidth
187(1)
8.2.7 Phase Performance
188(1)
8.3 Classification of GNSS Terminals
188(2)
8.3.1 Geodetic Terminals
188(1)
8.3.2 Rover Terminals
188(1)
8.3.3 General Purpose Mobile Terminals
189(1)
8.4 Antenna Designs for Portable User Equipment
190(2)
8.4.1 Short Quadrifilar Helices
190(1)
8.4.2 Patch Antennas
191(1)
8.4.3 Smaller Antennas
192(1)
8.5 The Function of the Platform
192(2)
8.5.1 Antenna Efficiency, Gain and Noise
193(1)
8.6 Comparing Antenna Performance on UEs
194(3)
8.6.1 Drive Testing
194(1)
8.6.2 Non-Antenna Aspects of Performance
195(2)
8.7 Practical Design
197(4)
8.7.1 Positioning the GNSS Antenna on the Application Platform
197(3)
8.7.2 Evaluating the Implementation
200(1)
8.8 Case Studies
201(5)
8.8.1 Measurement System
201(1)
8.8.2 Case 1: Modified PIFA on Face of Small PCB
202(1)
8.8.3 Case 2: Meandered Dipole Antenna on Top Edge of Small PCB
203(1)
8.8.4 Case 3: Modified PIFA above LCD Display on Smart-Phone-Size Device
204(1)
8.8.5 Case 4: Moving Modified PIFA from One to Adjacent Corner of PCB
205(1)
8.8.6 Cases 5 and 6: Effects of Platform Electronics Noise
205(1)
8.9 Summary
206(1)
References
206(1)
Appendix A Basic Principle of Decoding Information from a CDMA Signal 207(4)
Appendix B Antenna Phase Characteristics and Evaluation of Phase Centre Stability 211(4)
Index 215
Professor Xiaodong Chen, Queen Mary, University of London, UK Xiaodong Chen is a Professor in Microwave Engineering at Queen Mary, University of London. His research interests are in microwave devices and antennas, wireless communications and bioelectromagnetics.

Professor Clive G. Parini, Queen Mary, University of London, UK Clive G. Parini heads the Antenna & Electromagnetics Research Group. His research topics including array mutual coupling, array beam forming, antenna metrology, microstrip antennas, millimetrewave compact antenna test ranges, millimetrewave integrated antennas, metamaterials and on-body communications.



Professor Brian Collins, Queen Mary, University of London, UK Brian Collins has designed antennas for a very wide range of applications, from radio and TV broadcast antennas to base station and handset antennas.

Dr. Yuan Yao, Beijing University of Posts and Telecommunications, China Yuan Yao received Ph. D degree in electronic engineering from Tsinghua University, China. His research interests include antenna design, antenna array analysis and design, and microwave circuits design.

Masood Ur Rehman, Queen Mary, University of London, UK Masood Ur Rehman is a final year PhD student in Queen Mary, University of London, UK. He received B.Sc (Hons.) degree in Electronics and Communication Engineering from University of Engineering and Technology, Lahore, Pakistan in 2004 and completed his M.Sc in Wireless Networks at Queen Mary, University of London in 2006.