Handbook of Reflector Antennas and Feed Systems Volume II
Feed Systems
1st Edition
Published on 1. January 2013
356 pages
978-1-60807-518-8 (ISBN)
Description
This is the first truly comprehensive and most up-to-date handbook available on modern reflector antennas and feed sources for diversified space and ground applications. There has never been such an all-encompassing reflector handbook in print, and no currently available title offers coverage of such recent research developments. The Handbook consists of three volumes. Volume 2 focuses on feed sources.Reflector antennas are extraordinary devices that combine high gain with geometrical simplicity, and can operate in broad frequency bands. Their performance, however, depends on the electrical characteristics of the feed system with which they operate. This comprehensive volume provides you with a solid understanding of feed system theory, design, and analysis.Featuring chapters authored by experts in each aspect of feed systems, this book takes you from fundamental mathematical techniques, electrically small and large dual reflectors, feed geometry and telemetry, tracking and command antennas, and more. Throughout the book numerous examples are provided to guide you in the practical aspects of feed design.
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Sudhakar Rao | Lotfollah Shafai | Satish Sharma
Handbook of Reflector Antennas and Feed Systems Volume II: Feed Systems
Volume 2: Feed Systems
Book
08/2013
Artech House Publishers
€245.50
Shipment within 10-20 days
Content
- Intro
- Handbook of Reflector Antennasand Feed Systems: Volume II Feed Systems
- Contents
- Preface
- Chapter 1 Introduction
- 1.1 Introduction
- 1.2 The Feed System
- 1.3 Phase Center Determination
- 1.4 Feed Efficiency
- 1.5 Organization of the Book
- References
- Chapter 2 Numerical Methods
- 2.1 Introduction
- 2.2 Maxwell's Equations: Foundations of Electromagnetic Analysis
- 2.2.1 Green's Functions and Integral Representations
- 2.3 Method of Moments (MoM)
- 2.3.1 Integral Equation Formulation
- 2.3.2 Geometry Representations and Meshing
- 2.3.3 Basis Functions
- 2.3.4 Construction of the Impedance Matrix Equation
- 2.3.5 Direct and Iterative Solution Methods
- 2.3.6 Examples
- 2.4 Finite-Element Method (FEM)
- 2.4.1 Functional Formalism and Discrete Formulation
- 2.4.2 Material Modeling, Boundary Conditions, and Feed Modeling
- 2.4.3 Discretization and Basis Functions
- 2.4.4 Example
- 2.5 Hybrid FE-BI and Domain Decomposition Techniques
- 2.5.1 Hybrid Finite-Element-Boundary Integral (FE-BI) Formulation
- 2.5.2 Example
- 2.6 Fast Methods for Integral Equations
- 2.6.1 Fast Multipole Method (FMM)
- 2.6.2 Examples
- 2.6.3 Model Order Reduction for Fast Frequency Sweep
- 2.6.4 Example
- 2.7 High-Frequency Techniques
- 2.7.1 Physical Optics (PO) and Geometrical Optics (GO)
- 2.7.2 Example
- 2.7.3 Geometrical Theory of Diffraction and Uniform Theory of Diffraction
- References
- Chapter 3 Electrically Small Feeds
- 3.1 Introduction
- 3.2 Design Requirements
- 3.3 Waveguide Feeds
- 3.3.1 Small Waveguide Feeds
- 3.3.2 Small Coaxial Feeds
- 3.3.3 Small Wide Angle Feeds
- 3.3.4 Small Backfire Feeds
- 3.4 Microstrip Feeds
- 3.4.1 Single Patch Antenna as the Reflector Feed
- 3.4.2 Planar Antenna Array Feeds
- 3.5 Backfire Printed Dipole Feeds
- 3.5.1 Design Approach
- 3.5.2 Performance Results
- 3.5.3 Printed Dipole Performance with a Reflector
- 3.6 Asymmetric Feeds
- 3.7 Feed Pattern Shaping by Superstrate Loading
- References
- Chapter 4 Smooth Wall Multimode Horns for High Aperture Efficiency-Theory, Design, and Applications
- 4.1 Introduction
- 4.2 Theory for High Aperture Efficiency
- 4.3 Circular Aperture
- 4.3.1 Realization of the Modes
- 4.3.2 Circular Horn Design
- 4.3.3 Three-Step Horn
- 4.4 Square High-Efficiency Horn
- 4.5 Multiflared High-Efficiency Horns
- 4.6 Other High-Efficiency Horn Structures
- 4.7 Applications
- 4.7.1 In Direct Radiating Arrays
- 4.7.2 In Multiple-Beam Reflectors
- 4.8 Conclusions
- References
- Chapter 5 Profiled Horns and Feeds
- 5.1 Introduction
- 5.2 Basis of Optimum Horns
- 5.2.1 Pattern Constraints
- 5.2.2 Input Mismatch
- 5.2.3 Aperture Efficiency
- 5.2.4 Phase Center Stability
- 5.2.5 Compactness and/or Physical Constraint Due to Existing Environment
- 5.3 Choice of Horn Profiles
- 5.4 Optimization of Horn Profile
- 5.4.1 Possible Approaches
- 5.4.2 Optimization Methods
- 5.5 Examples of Horn Designs
- 5.5.1 Corrugated Horn
- 5.5.2 Smooth-Walled Circular and Coaxial Horns
- 5.5.3 Rectangular Horn
- 5.5.4 Dielectric Rod and Horn
- 5.5.5 Arrays of Profiled Horns
- 5.6 Conclusion
- References
- Chapter 6 Soft and Hard Horn Antennas
- 6.1 Introduction to Hybrid Mode Horn Antennas
- 6.2 Definition of Soft and Hard Surfaces
- 6.3 Soft and Hard Horn Designs and Implementations
- 6.3.1 Soft Corrugated Horns
- 6.3.2 Horns with a Dielectric Core (Dielcore Horns)
- 6.3.3 Soft Strip-Loaded Horns
- 6.3.4 Hard Strip-Loaded and Corrugated Horns
- 6.3.5 Metamaterial Horns (Meta-horns)
- 6.4 Hard Horns as Feeds for Array Antennas
- 6.5 Conclusions
- References
- Chapter 7 Circularly Polarized Feed Antennas
- 7.1 Introduction
- 7.2 Analysis Methods for CP Feed Antenna Design
- 7.2.1 Method of Moments (MoM)
- 7.2.2 Finite-Difference Time-Domain Method (FDTDM)
- 7.3 Polarizer and Two-Point Excitation Patch
- 7.4 One-Point Excitation CP Patch Feed Antenna
- 7.5 End-Fire Helical CP Feed Antenna
- 7.5.1 Effects of a Cavity
- 7.5.2 Frequency Response
- 7.6 CP Feed Array Antenna Composed of End-Fire Helical Elements
- 7.7 Conical Helical CP Feed Antennas
- 7.8 Back-Fire-Mode CP Helical Feed Antenna
- 7.8.1 Back-Fire Radiation
- 7.8.2 Frequency Response of the Current
- 7.8.3 Effects of Pitch Angle on the Frequency Response of the Antenna Characteristics
- 7.9 Spiral CP Feed Antenna
- 7.10 Curl CP Feed Antenna
- 7.10.1 CP Radiation
- 7.10.2 Beamwidth
- 7.10.3 Frequency Response
- Acknowledgments
- References
- Chapter 8 Generalized Asymmetric Reflector Antenna Feeds for Polarization Control and Adaptive Virtual Array Design
- 8.1 Introduction
- 8.2 Applications of Asymmetric Feeds
- 8.2.1 Cross Polarization Reduction in Offset Reflector Antennas
- 8.3 Asymmetric Feed Designs for Cross Polarization Reduction
- 8.3.1 Feed 1: Ring Choke Excited Circular Waveguide with Slot [22, 23]
- 8.3.2 Feed 2: Stepped Circular Waveguide with Tuning Blocks [24]
- 8.4 Multiphase Center Reflector Antennas and Virtual Array Formation
- 8.4.1 The Concept Theory
- 8.4.2 Symmetrical-Cut Paraboloids [26]
- 8.4.3 Adaptive Asymmetric Feed Designs for Multiphase Center Applications
- 8.4.4 Feed 3: Adaptive Dual-mode TE11 and TE21 Feed [29]
- 8.4.5 Feed 4: Adaptive Dual-mode TE11 and TM01 Feed [30]
- 8.4.6 Feed 5: Adaptive Triple-Mode TE11 + TM01 + TE21 Feed [31]
- 8.5 Concluding Remarks
- References
- Chapter 9 Array Antennas and Low-Gain TT&C Antennas
- 9.1 Introduction
- 9.2 Array Antennas
- 9.2.1 Array Design
- 9.2.2 Radiating Elements
- 9.2.3 Array Radiation Patterns
- 9.3 Low Gain TT&C Antennas
- 9.3.1 TT&C Subsystem and Antenna Applications
- 9.3.2 TT&C Antennas Introduction
- 9.3.3 TT&C RF Block Diagram and Link Budgets
- 9.3.4 Low-Gain TT&C Antennas
- References
- About the Editors
- Index
