2005通讯方面的新书之二：Phased.Array.Antenna.Handbook.Second.Edition

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【文件名】:0634@52RD_Artech.House.Publishers.Phased.Array.Antenna.Handbook.Second.Edition.eBook-kB.part1.rar
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Contents
Preface to the Second Edition xi
Preface to the First Edition xiii
Acknowledgments xv
CHAPTER 1
Phased Arrays in Radar and Communication Systems 1
1.1 Introduction 1
1.1.1 System Requirements for Radar and Communication Antennas 1
1.2 Array Characterization for Radar and Communication Systems 12
1.2.1 Fundamental Results from Array Theory 12
1.2.2 Array Size Determination 34
1.2.3 Time-Delay Compensation 43
1.3 Array Architecture and Control Technology 44
1.3.1 Array Aperture 44
1.3.2 Feed Architectures 47
1.3.3 Beamforming Modalities and Relevant Architectures 53
1.3.4 RF Components for Array Control 55
References 59
CHAPTER 2
Pattern Characteristics of Linear and Planar Arrays 63
2.1 Array Analysis 63
2.1.1 The Radiation Integrals 63
2.1.2 Element Pattern Effects, Mutual Coupling, Gain Computed
from Element Patterns 68
2.2 Characteristics of Linear and Planar Arrays 75
2.2.1 Linear Array Characteristics 75
2.2.2 Planar Array Characteristics 84
2.3 Scanning to Endfire 89
2.4 Thinned Arrays 92
2.4.1 Average Patterns of Density-Tapered Arrays 93
2.4.2 Probabilistic Studies of Thinned Arrays 96
2.4.3 Thinned Arrays with Quantized Amplitude Distributions 99
References 107
vii
viii Contents
CHAPTER 3
Pattern Synthesis for Linear and Planar Arrays 109
3.1 Linear Arrays and Planar Arrays with Separable Distributions 109
3.1.1 Fourier Transform Method 109
3.1.2 Schelkunov’s (Schelkunoff’s) Form 111
3.1.3 Woodward Synthesis 113
3.1.4 Dolph-Chebyshev Synthesis 116
3.1.5 Taylor Line Source Synthesis 121
3.1.6 Modified sin pz/pz Patterns 128
3.1.7 Bayliss Line Source Difference Patterns 130
3.1.8 Synthesis Methods Based on Taylor Patterns: Elliott’s
Modified Taylor Patterns and the Iterative Method of Elliott 133
3.1.9 Discretization of Continuous Aperture Illuminations by Root
Matching and Iteration 139
3.1.10 Synthesis of Patterns with Complex Roots and Power Pattern
Synthesis 141
3.2 Circular Planar Arrays 153
3.2.1 Taylor Circular Array Synthesis 153
3.2.2 Bayliss Difference Patterns for Circular Arrays 155
3.3 Methods of Pattern Optimization/Adaptive Arrays 157
3.3.1 Pattern Optimization 157
3.3.2 Adaptive Arrays 159
3.3.3 Generalized S/N Optimization for Sidelobe Cancelers, Phased
and Multiple-Beam Arrays 162
3.3.4 Operation as Sidelobe Canceler 165
3.3.5 Fully Adaptive Phased or Multiple-Beam Arrays 168
3.3.6 Wideband Adaptive Control 170
3.4 Generalized Patterns Using Covariance Matrix Inversion 175
3.5 Pattern Synthesis Using Measured Element Patterns 176
References 180
CHAPTER 4
Patterns of Nonplanar Arrays 185
4.1 Introduction 185
4.1.1 Methods of Analysis for General Conformal Arrays 186
4.2 Patterns of Circular and Cylindrical Arrays 187
4.2.1 Phase Mode Excitation of Circular Arrays 190
4.2.2 Patterns and Elevation Scan 194
4.2.3 Circular and Cylindrical Arrays of Directional Elements 194
4.2.4 Sector Arrays on Conducting Cylinders 197
4.3 Spherical and Hemispherical Arrays 220
4.4 Truncated Conical Arrays 221
References 221
Contents ix
CHAPTER 5
Elements for Phased Arrays 225
5.1 Array Elements 225
5.2 Polarization Characteristics of Infinitesimal Elements in Free Space 225
5.3 Electric Current (Wire) Antenna Elements 227
5.3.1 Effective Radius of Wire Structures with Noncircular Cross
Section 228
5.3.2 The Dipole and the Monopole 228
5.3.3 Special Feeds for Dipoles and Monopoles 234
5.3.4 Dipoles Fed Off-Center 238
5.3.5 The Sleeve Dipole and Monopole 238
5.3.6 The Bowtie and Other Wideband Dipoles 241
5.3.7 The Folded Dipole 241
5.3.8 Microstrip Dipoles 246
5.3.9 Other Wire Antenna Structures 247
5.3.10 Broadband Flared-Notch, Vivaldi, and Cavity-Backed
Antennas 248
5.4 Aperture Antenna Elements 251
5.4.1 Slot Elements 252
5.4.2 Waveguide Radiators 254
5.4.3 Ridged Waveguide Elements 256
5.4.4 Horn Elements 257
5.5 Microstrip Patch Elements 258
5.5.1 Microstrip Patch 258
5.5.2 The Balanced Fed Radiator of Collings 268
5.6 Elements for Alternative Transmission Lines 269
5.7 Elements and Row (Column) Arrays for One-Dimensional Scan 269
5.7.1 Waveguide Slot Array Line Source Elements 272
5.7.2 Printed Circuit Series-Fed Arrays 275
5.8 Elements and Polarizers for Polarization Diversity 277
References 282
CHAPTER 6
Summary of Element Pattern and Mutual Impedance Effects 291
6.1 Mutual Impedance Effects 291
6.2 Integral Equation Formulation for Radiation and Coupling in Finite
and Infinite Arrays 293
6.2.1 Formulation and Results for Finite Arrays 293
6.2.2 Formulation and Results for Infinite Arrays 297
6.3 Array Blindness and Surface Waves 306
6.4 Impedance and Element Patterns in Well-Behaved Infinite Scanning
Arrays 319
6.5 Semi-Infinite and Finite Arrays 327
6.6 Impedance Matching for Wide Angle and Wideband Radiation 329
6.6.1 Reduced Element Spacing 331
6.6.2 Dielectric WAIM Sheets 333
6.7 Mutual Coupling Phenomena for Nonplanar Surfaces 335
x Contents
6.8 Small Arrays and Waveguide Simulators for the Evaluation of Phased
Array Scan Behavior 339
6.8.1 Several Useful Simulators 344
References 346
CHAPTER 7
Array Error Effects 353
7.1 Introduction 353
7.2 Effects of Random Amplitude and Phase Errors in Periodic Arrays 353
7.2.1 Average Pattern Characteristics 354
7.2.2 Directivity 358
7.2.3 Beam Pointing Error 358
7.2.4 Peak Sidelobes 359
7.3 Sidelobe Levels Due to Periodic Phase, Amplitude, and Time-Delay
Quantization 362
7.3.1 Characteristics of an Array of Uniformly Illuminated
Contiguous Subarrays 364
7.3.2 Phase Quantization in a Uniformly Illuminated Array 365
7.3.3 Reduction of Sidelobes Due to Phase Quantization 371
7.3.4 Subarrays with Quantized Amplitude Taper 374
7.3.5 Time Delay at the Subarray Ports 375
7.3.6 Discrete Phase or Time-Delayed Subarrays with Quantized
Subarray Amplitudes 375
References 377
CHAPTER 8
Special Array Feeds for Limited Field-of-View and Wideband Arrays 379
8.1 Multiple-Beam Systems 379
8.1.1 Beam Crossover Loss 381
8.1.2 Orthogonality Loss and the Stein Limit 384
8.1.3 Multiple-Beam Matrices and Optical Beamformers 392
8.2 Antenna Techniques for Limited Field-of-View Systems 399
8.2.1 Minimum Number of Controls 400
8.2.2 Periodic and Aperiodic Arrays for Limited Field of View 402
8.2.3 Constrained Network for Completely Overlapped Subarrays 421
8.2.4 Reflectors and Lenses with Array Feeds 429
8.2.5 Practical Design of a Dual-Transform System 452
8.3 Wideband Scanning Systems 455
8.3.1 Broadband Arrays with Time-Delayed Offset Beams 456
8.3.2 Contiguous Time-Delayed Subarrays for Wideband Systems 456
8.3.3 Overlapped Time-Delayed Subarrays for Wideband Systems 459
References 467
List of Symbols 473
About the Author 477
Index 479
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