Analysis of Radome-Enclosed Antennas Second Edition -- Contents -- Foreword -- Preface -- Acknowledgments -- Part I Background and Fundamentals -- 1 Overview of Radome Phenomenology -- 1.1 History of Radome Development -- 1.2 Radome-Antenna Interaction -- 1.2.1 Boresight Error (BSE) and Boresight Error Slope (BSES) -- 1.2.2 Registration Error -- 1.2.3 Antenna Sidelobe Degradation -- 1.2.4 Depolarization -- 1.2.5 Antenna Voltage Standing Wave Ratio (VSWR) -- 1.2.6 Introduction of an Insertion Loss Due to the Presence of the Radome -- 1.3 Significance of Parameters in Radome Performance -- 1.4 Radome Technology Advances Since the First Edition -- 1.4.1 Use of Metamaterials -- 1.4.2 Frequency Selective Radomes -- 1.4.3 Concealed Radomes -- References -- 2 Basic Principles and Conventions -- 2.1 Vector Mathematics -- 2.2 Electromagnetic Theory -- 2.3 Matrices -- 2.4 Coordinate Systems and Gimbal Relationships -- 2.5 Specialized Antenna Pointing Gimbals -- 2.5.1 Maritime SATCOM -- 2.5.2 Vehicular Applications -- 2.5.3 Airborne Applications -- References -- Selected Bibliography -- 3 Antenna Fundamentals -- 3.1 Directivity and Gain -- 3.2 Radiation from Current Elements -- 3.3 Antenna Array Factor -- 3.4 Linear Aperture Distributions -- 3.5 Two-Dimensional Distributions -- 3.6 Spiral Antennas -- References -- 4 Radome Dielectric Materials -- 4.1 Organic Materials -- 4.1.1 Monolithic Radomes -- 4.1.2 Sandwich Radomes -- 4.2 Inorganic Materials -- 4.3 Dual Mode (RF/IR) Materials -- 4.3.1 Nonorganic Dual-Mode Materials -- 4.3.2 Organic Dual-Mode Materials -- 4.4 Effect of Radome Material on Antenna Performance -- 4.4.1 Receiver Noise -- 4.4.2 Noise Temperature Without Radome -- 4.4.3 Noise Temperature with Radome -- References -- Part II Radome Analysis Techniques -- 5 Dielectric Wall Constructions.

5.1 Mathematical Formulation for Radome Wall Transmission -- 5.2 Radome Types, Classes, and Styles Definition -- 5.2.1 Radome Type Definitions -- 5.2.2 Radome Class Definitions -- 5.2.3 Radome Style Definitions -- 5.3 Wall Style Electrical Performance -- 5.3.1 Half-Wave Wall Radomes (Style a) -- 5.3.2 Thin Walled Radomes (Style b) -- 5.3.3 A Sandwich Radome (Style c) -- 5.3.4 Multilayer Radomes (Style d) -- 5.3.5 B-Sandwich Radomes (Style e) -- References -- Appendix 5A: Program WALL Computer Software Listing -- 5.1 Mathematical Formulation for Radome Wall Transmission -- 5.1.2 Transmission Coefficients for Circular Polarization -- 5.1.3 Transmission for Elliptical Polarization -- 6 Radome Analysis Techniques -- 6.1 Background -- 6.2 Geometric Optics (GO) Approaches -- 6.2.1 GO Receive Mode Calculations -- 6.2.2 GO Transmit Mode Calculations -- 6.3 Physical Optics (PO) Approaches -- 6.3.1 PO Receive Mode Calculations -- 6.3.2 PO Transmit Mode Calculations -- 6.4 Other Approaches -- 6.4.1 Method of Moments (MOM) -- 6.4.2 Plane Wave Spectra (PWS) -- 6.4.3 FDTD and Integral Equation Methods -- 6.5 Sources of Computational Error -- 6.5.1 Internal Reflections -- 6.5.2 Wall Model and Statistical Variations -- References -- Part III Computer Implementation -- 7 Ray Trace Approaches -- 7.1 Shape Considerations -- 7.1.1 Rationale for Choosing a Particular Shape -- 7.1.2 Mathematical Modeling of the Tangent Ogive Shape -- 7.1.3 Determining the Intercept Point of a Ray with the Tangent Ogive Wall -- 7.1.4 Computation of Surface Normal Vector at the Intercept Point -- 7.1.5 Determining the Ray Angle of Incidence -- 7.2 Hemispherical Radome Shapes -- 7.3 Other Radome Shapes Having Axial Symmetry -- 7.3.1 Mathematical Modeling of the Radome Shape -- 7.3.2 POLY Polynomial Regression Subroutine -- 7.3.3 Determining Intercept Point and Surface Normal Vectors.

7.4 Wave Decomposition at the Intercept Point -- References -- Appendix 7A: Program OGIVE Software Listing -- Appendix 7B: Program POLY Software Listing -- Appendix 7C: Program ARBITRARY Software Listing -- Appendix 7D: Program DECOMPOSE Computer Listing -- 8 Radome-Enclosed Guidance Antennas -- 8.1 Definitions of Boresight Error (BSE) and Boresight Error Slope(BSES) -- 8.2 Calculation of Antenna Patterns and Monopulse Error Voltagesfor an Antenna Without a Radome -- 8.3 Calculation of Radiation Patterns and Monopulse Error Voltagesfor an Antenna with a Radome -- 8.3.1 General Approach -- 8.3.2 Computation of the Antenna Pattern Space Phase Terms -- 8.3.3 Transformation of All Aperture Points to Radome Coordinates -- 8.3.4 Transformation of All Ray Vectors from Aperture Sample Points in thePattern Look Direction -- 8.3.5 Project Rays to the Radome Surface -- 8.3.6 Compute Angle of Incidence -- 8.3.7 Computation of Voltage Transmission Coefficients for Each Ray -- 8.3.8 Perform an Antenna Aperture Integration -- 8.4 Additional Modeling Considerations -- 8.4.1 Rain Erosion of Missile Radomes -- 8.4.2 Aerothermal Heating -- 8.4.3 Radome Effects on Conscan Antennas -- References -- Selected Bibliography -- 9 Miscellaneous Radome-Enclosed Antenna Types -- 9.1 Spiral Antennas -- 9.1.1 Single Mode Spiral Antennas -- 9.1.2 Multimode Spiral Antennas -- 9.2 Large Parabolic Antennas -- 9.3 Air-Supported Radomes -- 9.4 Metal Space Frame Radomes -- 9.4.1 Dielectric Wall Losses -- 9.4.2 Frame Blockage Losses -- 9.4.3 Pointing Errors -- 9.5 Dielectric Space Frame Radomes -- 9.6 Radome Enclosed Phased-Array Antennas -- References -- Selected Bibliography -- Part IV Radome Specifications and Environmental Degradations -- 10 Specifying and Testing Radome Performance -- 10.1 Specifying Aircraft Radomes.

10.2 Specifying Radomes for Terrestrial and Marine SATCOMAntennas -- 10.3 Radome Testing Methodology -- 10.3.1 Outdoor Test Facilities -- 10.3.2 Use of Indoor Anechoic Chambers -- 10.3.3 Use of Compact Range -- 10.3.4 Near-Field Testing Options -- References -- Selected Bibliography -- 11 Environmental Degradations -- 11.1 Rain Erosion -- 11.1.1 Rain Erosion Paints -- 11.1.2 Rain Erosion Boots -- 11.2 Atmospheric Electricity -- 11.2.1 Lighting Strike Damage -- 11.2.2 Use of Lightning Diverters -- 11.2.3 Antistatic Systems -- 11.2.4 Radome Wetting and Hydrophobic Materials -- 11.3 Radome Impact Resistance -- References -- Appendix A Vector Operations in Various Coordinate Systems -- Appendix B Propagation Constant and WaveImpedance for Arbitrary Media -- Appendix C Multilayer Propagation and Fresnel Transmission and Reflection Coefficients -- Appendix D Radiation from Elemental Currents -- Appendix E Program TORADOME Software Listing -- Appendix F Operations Manual for Programs Provided with Book -- About the Author -- Index.