Introduction to Antenna Placement and Installation

Introduction to Antenna Placement and Installation introduces the characteristics of antennas and their integration on aircraft. The book covers antenna siting and placement, computational antenna modelling on structures, measurement on sub–scale models of the airframe, full–scale ground measurements and in–flight measurements.
The author addresses the different stages in the process of developing an entire antenna layout, as well as covering individual retrofits on existing platforms. She explains the physics of antenna placement qualitatively, thus obviating the requirement to understand complex mathematical equations.
Provides a reference book & guide written primarily for Antenna and Integration Engineers but which will also be of interest to Systems Engineers and Project Managers
Includes chapters on aircraft systems using antennas, restrictions & trade–offs, frequency & spatial coverage considerations, effect of other antennas & obstacles, RF interoperability issues associated with radiated emissions, computer modelling software, scaled model & full–scale measurements, comparison between measurements & modelling, as well as ground tests and in–flight measurements
Describes techniques that can be applied equally to antennas on other structures such as land or sea vehicles and spacecraft
Illustrated throughout with figures & diagrams as well as a full colour plates


Spis treści:
About the Author
Preface
1 Basic Antenna and Propagation Theory
1.1 Introduction
1.2 Characteristics of Electromagnetic Waves
1.3 Interaction between Two Waves
1.4 Polarization
1.5 Characteristics of an Antenna
1.6 Propagation
References
2 Aircraft Systems Using Antennas
2.1 Aircraft Systems
2.2 Aircraft Systems
2.3 Automatic Directi on Finding
2.4 Distress/SOS
2.5 Distance Measuring Equipment
2.6 Electronic Counter Measures
2.7 Electronic Support Systems
2.8 Emergency Locator Transmitter/Emergency Position Indicating
Radio Beacon
2.9 Global Positioning System
2.10 HF
2.11 Instrument Landing System
2.12 In–Flight Telephony
2.13 Microwave Landing System
2.14 Radar
2.15 SatCom Civilian
2.16 Signals Intelligence
2.17 Tactical Air Navigation
2.18 Traffic Collision Avoidance System
2.19 Telemetry
2.20 UHF
2.21 VHF Comms
2.22 VHF Omnidirectional Ranging
2.23 Equipment Designation
References
3 The Antenna Siting Process
3.1 Introduction
3.2 New Antenna Layouts
3.3 Optimum Positions for Blades
3.4 Design Phase
3.5 Certification and Qualification Phase
3.6 Typical Antenna Layouts
References
4 Frequency and Spatial Coverage Considerations
4.1 Introduction
4.2 Effect of the Structure on the Spatial Characteristics of the Antenna
4.3 Combination of Two Waves
4.4 Measurements on Scaled Test Bodies
4.5 Effect of Frequency on the Radiation Pattern
4.6 Effect of Distance from Obstacles
4.7 Effect of Wings on the Radiation Pattern
4.8 Effect of the Curved Ground Plane and the Electrical Dimensions of the Fuselage
4.9 Radiation Patterns on Cylinders in the Absence of Obstacles
References
5 Antennas Used on Aircraft
5.1 Introduction 133
5.2 Near and Far Fields of an Antenna
5.3 Antennas on Aerostructures
5.4 Polar Radiation Patterns
5.5 Dipoles
5.6 Monopoles
5.7 Loops and Notches
5.8 Helixes
5.9 Flat/Planar Spirals
5.10 Patches
5.11 Aperture Antennas
5.12 Reflectors
5.13 Waveguide Fed Antennas
5.14 Model Numbers Used by Different Manufacturers
References
6 RF Interoperability
6.1 Introduction
6.2 Coupling between Systems on an Aircraft
6.3 Techniques for Achieving RF Interoperability
6.4 Modulatio n
6.5 Coupling due to Radiated Emissions through the Antennas
6.6 Coupling between Systems with LOS Antennas
6.7 Coupling between Systems for Antennas on Opposite Surfaces
of the Fuselage
6.8 Existing Formulas Used for Calculating Coupling between Two Antennas
on Opposite Surfaces
6.9 Derivation of an Empirical Formula that Correlates with the
Measured Data
References
7 Computer Modelling Techniques
7.1 Introduction
7.2 Overview of Computer Modelling
7.3 Generic Types of Computer Modelling
7.4 Method of Moments
7.5 Finite Difference Time Domain
7.6 Theories of Diffraction
7.7 Physical Optics
7.8 Hybrid Methods
7.9 Comparison of Predicted Surface Currents
7.10 Code–to–code Comparison of Radiation Patterns Predicted on the Simplistic
Airframe
7.11 Relationship between Number of Unknowns and Surface Area
References
8 Measurements
8.1 Introduction
8.2 Positioners
8.3 Test Facility Antennas
8.4 Scale Models
8.5 Scaled Antennas
8.6 Absorbers
8.7 Measurement Facilities
8.8 Indoor Test Facilities
8.9 Anechoic Chambers
8.10 Compact Ranges
8.11 Near–Field Facilities
8.12 Outdoor Far–Field Ranges
8.13 Ground Test Measurements
8.14 In–Flight Measurements for System and Inter–System Testing
References
9 Reference
9.1 Centigrade to Fahrenheit Temperature Conversion
9.2 Conductivity of Common Metals
9.3 Degrees to Radians and Radians to Degrees
9.4 Dielectric Constants and Loss Tangents of Common Materials
9.5 Electrochemical Series
9.6 Electromagnetic Spectrum and Frequency Bands for Different
Nomenclatures
9.7 Formulas
9.8 Frequency to Wavelength
9.9 Gain in dB and Gain as a Linear Ratio
9.10 Greek Alphabet
9.11 Imperial to Metric Conversions – Distance, Area, Volume, Speed
9.12 Periodic Table Alphabetically
9.13 Polarization Matching Matrix
9.14 Power i n dBm and Power in Watts
9.15 Preferred SI Scientific Prefixes
9.16 Terms and Definitions
9.17 VSWR to Return Loss
Appendix: Abbreviations and Acronyms
Index


Okładka tylna:
Introduction to Antenna Placement and Installation introduces the characteristics of antennas and their integration on aircraft. The book covers antenna siting and placement, computational antenna modelling on structures, measurement on sub–scale models of the airframe, full–scale ground measurements and in–flight measurements.
The author addresses the different stages in the process of developing an entire antenna layout, as well as covering individual retrofits on existing platforms. She explains the physics of antenna placement qualitatively, thus obviating the requirement to understand complex mathematical equations.
Provides a reference book & guide written primarily for Antenna and Integration Engineers but which will also be of interest to Systems Engineers and Project Managers
Includes chapters on aircraft systems using antennas, restrictions & trade–offs, frequency & spatial coverage considerations, effect of other antennas & obstacles, RF interoperability issues associated with radiated emissions, computer modelling software, scaled model & full–scale measurements, comparison between measurements & modelling, as well as ground tests and in–flight measurements
Describes techniques that can be applied equally to antennas on other structures such as land or sea vehicles and spacecraft
Illustrated throughout with figures & diagrams as well as a full colour plates