Sparse Phased Array Antennas : : Theory and Applications.

• Author: Kedar, Ashutosh.
• Place / Publishing House: Norwood : : Artech House,, 2022.; ©2022.
• Year of Publication: 2022
• Edition: 1st ed.
• Language: English
• Physical Description: 1 online resource (315 pages)

Table of Contents

Intro -- Sparse Phased Array Antennas: Theory and Applications -- Contents -- Preface -- PART I: Introduction -- 1 The Beginning -- 1.1 Introduction -- 1.2 Past and Present of Sparse Antenna Arrays -- 1.3 Advantages and Limitations of Sparse Array -- 1.4 Application Scenario for Sparse Array Antennas -- 1.5 Organization of the Book -- References -- PART II: Antenna and Antenna Arrays -- 2 Antenna Fundamentals -- 2.1 Introduction -- 2.2 Broad Classification of Antennas -- 2.4 Types of Antennas -- 2.5 Antenna Design Techniques -- 2.6 Field Regions -- 2.7 Antenna Measurements -- 2.8 Summary of the Chapter -- References -- 3 Antenna Arrays -- 3.1 Introduction -- 3.2 Array Classification -- 3.3 Antenna Array Electromagnetics -- 3.3.1 Linear Antenna Array (LAA) -- 3.3.2 Planar Antenna Array (PAA) -- 3.4 Phased Array Antennas (PhAA) -- 3.4.1 Principle of Beam Steering -- 3.5 Antenna Array Design Constraints -- 3.5.1 Grating Lobes Mechanism -- 3.5.2 Mutual Coupling Phenomenon -- 3.5.3 Antenna Array Design Techniques -- 3.5.4 Practial Constraints in Regular or Dense Phased Array Antennas -- References -- PART III: Electromagnetics of Sparse Array Antennas -- 4 Generalized Expression for Directivity -- 4.1 Introduction -- 4.2 Generalized Exact Analytical Expression for Directivity -- 4.2.1 Case Studies -- 4.3 Approximate Expression for Directivity -- 4.4 Concentric Ring Antenna Arrays (CRAs) -- 4.4.1 Concentric Ring Sparse Array (CRSA) -- 4.4.2 Effect of Rotation on CRSA -- 4.5 Conclusions -- References -- APPENDIX 4A Derivation of (4.14) -- APPENDIX 4B Derivation of (4.21) -- 5 Synthesis of Linear Sparse Array Antennas -- 5.1 Introduction -- 5.2 LAAs -- 5.2.1 A Brief History of the Synthesis of LSAAs -- 5.2.2 Sparse Versus Dense Linear Array Antennas -- 5.3 Numerical Studies on LSAAs -- 5.3.1 An LSAA with 60 Grid Locations (d = λ/2).

5.3.2 The Effect of Mutual Coupling and the Choice of the Array Element -- 5.3.3 The Relationship Between SLL and the Number of Elements -- 5.3.4 Relationship Between the Thinning Ratio (Fill Factor) and the Number of Elements -- 5.3.5 Scan Performance -- 5.4 ADT for the Synthesis of Nonuniform LSAA -- 5.4.1 Usage of ADT for the Array Synthesis -- 5.4.2 Numerical Case Studies -- 5.4.3 Oversized Linear Sparse Array Antennas -- 5.4.4 Highly Sparse Linear Antenna Array (dno = 1λ) -- 5.5 Synthesis of taylor-Like Distribution -- 5.5.1 Design and Optimization Philosophy -- 5.5.2 A 60-Element Linear Space Antenna Array (LSAA) -- 5.5.3 Optimization of a 60-Element LSAA -- 5.5.4 A 200-Element Linear Sparse Array Antenna (LSAA) -- 5.5.5 A 3,600 (60 × 60) Element Planar Sparse Array Antenna (PSAA) -- 5.6 Conclusions -- References -- 6 Concentric Ring Sparse Array Antennas -- 6.1 Introduction -- 6.2 Review of the Literature -- 6.3 Types of Circular Sparse Arrays -- 6.3.1 The Array Factor of CRAs -- 6.4 Design Guildelines Framework -- 6.4.1 First Term in (6.14) -- 6.4.2 Maximum of AF -- 6.4.3 Second-Term in (6.14) -- 6.4.4 Simplified Version of (6.14) -- 6.4.5 Effects of Rotation -- 6.5 Design Process -- 6.6 Numerical Case Studies -- 6.6.1 A Three-Ring CRA -- 6.6.2 Benchmark Study of CRA with a Larger Aperture -- 6.7 Fractal Concentric Ring Circular Arrays -- 6.7.1 Cantor Fractal Set -- 6.8 Spiral Concentric Ring Circular Arrays -- References -- 7 Planar Sparse Array Antennas -- 7.1 Introduction -- 7.2 Design Techniques for Sparse Antenna Arrays -- 7.3 Design Fundamentals -- 7.3.1 Mean or Average Distance and Projection Method -- 7.3.2 A Triangular Antenna Array -- 7.4 Array with Random Isotropic Element Allocation -- 7.5 Statistical Density Tapering (SDT) Method -- 7.6 Fractal Engineering Techiques.

7.7 Hybridization of Statistical Density Tapering and Genetric Algorithm Techniques -- 7.8 PT-Based Deterministic Design Methodology -- 7.8.1 Synthesis of the Spatial Tapering Across the Array Aperture -- 7.8.2 Synthesis of a Taylor-Like Distribution -- 7.8.3 Problem Statement -- 7.9 Conclusions -- References -- APPENDIX 7A Randomization Approach:Geolocating Method -- 8 Use Cases for Sparse Array Antennas -- 8.1 Introduction -- 8.2 Global Scenario on Sparse Array Antennas -- 8.3 Use Case Studies -- 8.3.1 A Stochastic Technique-Based Low SLL Sparse Array Antenna -- 8.3.2 Multifunctional Dual-Band Sparse Array Antenna -- 8.4 Conclusions -- References -- About the Author -- Index.