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[null,"1.","Record Nr.",null,"UNINA9910830936003321"]
[null,null,"Titolo",null,"Mutual coupling between antennas / / editor, Trevor S. Bird"]
[null,null,"Pubbl/distr/stampa",null,"Hoboken, NJ : , : John Wiley & Sons, , [2021]"]
[{"$nulls":4},"©2021"]
[null,null,"ISBN",null,"1-119-56497-2"]
[{"$nulls":4},"1-119-56488-3"]
[{"$nulls":4},"1-119-56504-9"]
[null,null,"Descrizione fisica",null,"1 online resource (483 pages)"]
[null,null,"Disciplina",null,"621.3824"]
[null,null,"Soggetti",null,"Antenna arrays"]
[{"$nulls":4},"Coupled mode theory"]
[{"$nulls":4},"Electromagnetic interference"]
[null,null,"Lingua di pubblicazione",null,"Inglese"]
[null,null,"Formato",null,"Materiale a stampa"]
[null,null,null,"Livello bibliografico","Monografia"]
[null,null,"Nota di contenuto",null,"Cover -- Title Page -- Copyright -- Contents -- Preface -- Acknowledgments -- List of Contributors -- Notation -- Chapter 1 Introduction -- 1.1 Aims and Scope -- 1.2 Historical Perspective -- 1.3 Overview of Text -- References -- Chapter 2 Basics of Antenna Mutual Coupling -- 2.1 Introduction -- 2.2 Electromagnetic Field Quantities -- 2.2.1 Definitions -- 2.2.2 Field Representations in Source‐Free Regions -- 2.3 Mutual Coupling Between Elementary Sources -- 2.3.1 Radiation -- 2.3.2 Generalized Infinitesimal Current Elements -- 2.3.3 Mutual Coupling Between Infinitesimal Current Elements -- 2.4 Network Representation of Mutual Coupling -- 2.4.1 Extension to Combination of Elements -- 2.4.2 Mutual Impedance and Admittance Matrix Formulation -- 2.4.3 Scattering Matrix Representation -- 2.5 Radiation from Antennas in the Presence of Mutual Coupling -- 2.5.1 Far‐Field Radiation -- 2.5.2 Magnetic Current Only -- 2.5.3 Electric Current Only -- 2.6 Conclusion -- References -- Chapter 3 Methods in the Analysis of Mutual Coupling in Antennas -- 3.1 Introduction -- 3.2 Mutual Coupling in Antennas with Continuous Sources -- 3.2.1 Impedance and Admittance with Continuous Sources -- 3.2.2 Reaction -- 3.2.3 Definition of Circuit Quantities -- 3.3 On Finite and Infinite Arrays -- 3.3.1 Finite Array Analysis by Element‐by‐Element Method -- 3.3.2 Infinite Periodic Array Analysis -- 3.4 Integral Equation Methods Used in Coupling Analysis -- 3.4.1 Introduction -- 3.4.2 Green's Function "]
[{"$nulls":4},"Methods -- 3.4.2.1 Free‐Space Green's Function for Harmonic Sources -- 3.4.2.2 Free‐Space Green's Function for Transient Sources -- 3.4.2.3 Fields with Sources -- 3.4.3 Solution by Weighted Residuals -- 3.5 Some Other Methods Used in Coupling Analysis -- 3.5.1 Unit Cell Analysis in Periodic Structure Method -- 3.5.2 Mode Matching Methods -- 3.5.3 Moment Methods."]
[{"$nulls":4},"3.5.4 Method of Characteristic Modes -- 3.5.5 Minimum Scattering Element Method -- 3.6 Practical Aspects of Numerical Methods in Mutual Coupling Analysis -- 3.6.1 Introduction -- 3.6.2 Numerical Quadrature -- 3.6.3 Matrix Inversion -- 3.7 Conclusion -- References -- Chapter 4 Mutual Coupling in Arrays of Wire Antennas -- 4.1 Introduction -- 4.2 Formulation of the Problem -- 4.2.1 Moment Method -- 4.2.2 Moment Method Solution for the Dipole -- 4.3 Mutual Impedance -- 4.3.1 Closed Form Expressions for Mutual Impedance -- 4.3.2 Asymptotic Approximations to Mutual Impedance -- 4.4 Arrays of Wire Antennas -- 4.4.1 Full‐Wave Dipole Above a Perfect Ground -- 4.4.2 The Yagi-Uda Array -- 4.4.3 7 x 7 array of closely packed elements -- 4.5 Concluding Remarks -- References -- Chapter 5 Arrays of Planar Aperture Antennas -- 5.1 Introduction -- 5.2 Mutual Coupling in Waveguide and Horn Arrays -- 5.2.1 Integral Equation Formulation -- 5.2.2 Modal Representation -- 5.2.3 Modeling of Profiled Horns and Mode Matching -- 5.2.4 Asymptotic Approximation of Mutual Admittance -- 5.3 Coupling in Rectangular Waveguides and Horns -- 5.3.1 Self‐Admittance of TE10 Mode -- 5.3.2 Example of Mutual Coupling Between Different‐Sized Waveguides -- 5.3.3 Application to Horns -- 5.3.4 Waveguide‐Fed Slot Arrays -- 5.3.5 Asymptotic Approximation of Coupling in Rectangular Apertures -- 5.3.6 Coupling in Horns Approximated with Quadratic Phase -- 5.4 Coupling in Arrays of Coaxial Waveguides and Horns -- 5.4.1 Self‐Admittance of TE11 Mode in Coaxial Waveguide -- 5.4.2 TEM Mode Coupling in Coaxial Waveguide -- 5.4.3 Asymptotic Approximation of Coupling in Coaxial Waveguide Apertures -- 5.4.4 Coaxial and Circular Aperture Array Examples -- 5.5 Mutual Coupling Between Apertures of General Cross‐Section -- 5.5.1 Elliptical Apertures -- 5.5.2 General Apertures."]
[{"$nulls":4},"5.6 Coupling in Apertures Loaded with Dielectrics and Metamaterials -- 5.6.1 Dielectric‐Loaded Apertures -- 5.6.2 Metamaterial‐Loaded Apertures -- 5.7 Concluding Remarks -- References -- Chapter 6 Arrays of Microstrip Patch Antennas -- 6.1 Introduction -- 6.2 Representation of Mutual Coupling Between Patch Antennas -- 6.2.1 E‐Current Model of Coupling -- 6.2.2 Cavity Model (H‐Model) of Coupling -- 6.2.3 Full‐Wave Solution -- 6.3 Applications of Microstrip Arrays -- 6.3.1 Mutual Coupling Between Microstrip Patches -- 6.3.2 Steering by Switching Parasitic Elements -- 6.3.3 A Metasurface from Microstrip Patches -- 6.4 Concluding Remarks -- References -- Chapter 7 Mutual Coupling Between Antennas on Conformal Surfaces -- 7.1 Introduction -- 7.2 Mutual Admittance of Apertures on Slowly Curving Surfaces -- 7.2.1 Green's Function Formulation for Curved Surfaces -- 7.2.2 The Cylinder -- 7.2.3 The Sphere -- 7.3 Asymptotic Solution for Fields Near Convex Surfaces -- 7.3.1 Review of Literature for Convex Surfaces -- 7.3.2 Asymptotic Solution for the Surface Fields -- 7.4 Mutual Coupling of Apertures in Quadric Surfaces -- 7.4.1 Closed‐Form Expressions for Mutual Coupling Between Rectangular Waveguides in a Cylinder -- 7.4.2 Expressions for Mutual Coupling Between Circular Waveguides in a Sphere -- 7.4.3 Mutual Coupling Between Microstrip Patches on a Cylinder -- 7.5 Extension of Canonical Solution to Large Convex Surfaces with Slowly Varying Curvature -- 7.6 Applications of Coupling on Curved Surfaces -- 7.6.1 Mutual Coupling in a Waveguide Array on a "]
[{"$nulls":4},"Cylinder -- 7.6.2 Mutual Coupling Between Monopoles on a Cylinder -- 7.6.3 Mutual Coupling Between Waveguides on an Ellipsoid -- 7.7 Conclusion -- References -- Chapter 8 Mutual Coupling Between Co‐Sited Antennas and Antennas on Large Structures -- 8.1 Preliminaries and Assumptions -- 8.1.1 The Problem at Hand."]
[{"$nulls":4},"8.1.2 Course Adopted -- 8.2 Full‐Wave CEM Modeling View of a Single Antenna -- 8.3 Full‐Wave CEM Modeling View of Coupled Antennas in the Presence of a Host Platform -- 8.3.1 Field Point of View -- 8.3.2 Two‐Port Network Parameter Point of View -- 8.4 Useful Expressions for Coupling in the Presence of a Host Platform -- 8.4.1 Motivation -- 8.4.2 Reciprocity and Reaction Theorems Revisited -- 8.4.3 Generalized Reaction Theorem -- 8.4.4 Expressions for Mutual Impedance and Open Circuit Voltage -- 8.4.5 Power Coupling -- 8.5 Supplementary Comments on CEM Modeling Methods -- 8.6 Full‐Wave CEM Modeling of Coupled Antennas on a Platform - The Ideal -- 8.7 Reduced Complexity Antenna Electromagnetic Models -- 8.7.1 Necessity for Simplified Antenna Models -- 8.7.2 Huygens' Box Model -- 8.7.3 Spherical Wave Expansion Models -- 8.7.4 Infinitesimal Dipole Models -- 8.7.5 Planar Aperture Models -- 8.7.6 Point Source Models -- 8.8 CEM Modeling of Coupled Antennas on a Platform - Pragmatic Approaches -- 8.9 Co‐Sited Antenna Coupling Computation Examples -- 8.10 Concluding Remarks -- References -- Chapter 9 Mutual Coupling and Multiple‐Input Multiple‐Output (MIMO) Communications -- 9.1 Introduction -- 9.2 Previous Work on Mutual Coupling and MIMO -- 9.3 Basics of MIMO Communications -- 9.3.1 MIMO Channel Capacity -- 9.3.2 Eigenchannels and the Water‐Filling Solution -- 9.3.3 Eigenchannels in MIMO Systems and Beamforming Arrays -- 9.3.4 Reference Planes and the Intrinsic Channel Matrix -- 9.4 Mutual Coupling and MIMO Transmitting Arrays -- 9.4.1 Radiated Electric Field and Embedded Element Patterns -- 9.4.2 Pattern Overlap Matrix, Conservation of Energy, and Mutual Coupling -- 9.4.3 Gain and Directivity in the Overlap Matrix Formulation -- 9.4.4 Overlap Matrix for Isotropic Radiators."]
[{"$nulls":4},"9.4.5 Mutual Coupling for Closely Spaced Elements, Superdirectivity, and Q‐Factor Bounds -- 9.4.6 EEPs, Mutual Coupling, and Minimum Scattering Antennas -- 9.4.7 Mutual Coupling and Interactions Between Elements -- 9.4.8 Transmitter Power Constraint -- 9.4.9 Impedance Matching at the Transmitter -- 9.5 Mutual Coupling and MIMO Receiving Arrays -- 9.5.1 Receive Array Signal and Noise Model -- 9.5.2 Receive Array Thévenin Equivalent Network -- 9.5.3 Loaded Receive Array Output Voltages -- 9.5.4 External Noise and Loss Noise -- 9.5.5 Signal Correlation Matrix -- 9.5.6 Signal Correlation in a Rich Multipath Environment -- 9.5.7 Mutual Coupling, Noise Matching, and Equivalent Receiver Noise -- 9.5.7.1 Active Impedances for Receiving Arrays -- 9.5.7.2 Equivalent Receiver Noise Temperature and Active Impedance Matching -- 9.5.7.3 Noise Matching Efficiency -- 9.6 Conclusion -- References -- Chapter 10 Mutual Coupling in Beamforming and Interferometric Antennas -- 10.1 Introduction -- 10.2 The Array Manifold -- 10.3 Direction‐of‐Arrival Algorithms -- 10.3.1 Matrix Pencil Method for Direction of Arrival Estimation -- 10.4 Maximum Gain Design for Single and Multiple Beams -- 10.4.1 Penalty Function Optimization of Array Parameters -- 10.4.2 Method of Successive Projections -- 10.4.3 Comparison of Penalty Functions and Successive Projections -- 10.5 Direction‐of‐Arrival Estimation -- 10.5.1 No Coupling Situation -- 10.5.1.1 Cramer‐Rao Lower Bound -- 10.5.1.2 Four‐Element Linear Arrays with Different Apertures (Two Incoming Signals) -- 10.5.1.3 Fixed Aperture Uniform Linear Arrays with Different Numbers of Elements (Two Incoming Signals) -- 10.5.1.4 "]
[{"$nulls":4},"Fixed Aperture Uniform Linear Arrays with Different Number of Elements (Three Incoming Signals) -- 10.5.2 Perturbation Due to Mutual Coupling."]
[{"$nulls":4},"10.5.2.1 Eight‐Element Linear Arrays with Different Apertures (Three Incoming Signals)."]
[null,null,null,"Sommario/riassunto","\"The aim of this book to provide an up-to-date description of the physical effects of mutual coupling for a variety of antennas and for techniques for analysing and assessing its effects. Practical aspects of mutual coupling will be presented as well as applications to show where the performance is impacted both positively and negatively by taking it into account. Mutual coupling is an important aspect of antenna array design that it is often neglected due to complexity or lack of computing power. It is a function of distance between the antennas, and depends on the near fields of the individual antenna elements, their proximity and their polarization. It can be analysed rigorously by a wide variety of methods from direct computer software using discrete methods, to integral equations and Greens function methods as well as approximate asymptotic methods. The book is directed at technical specialists, researchers and students working on problems connected with mutual interaction between antennas. A background in basic electromagnetics and antennas concepts is assumed\"--"]