Book description
Describing an innovative approach to phased-array control in antenna design
This book explores in detail phased-array antennas that use coupled-oscillator arrays, an arrangement featuring a remarkably simple beam steering control system and a major reduction in complexity compared with traditional methods of phased-array control. It brings together in one convenient, self-contained volume the many salient research results obtained over the past ten to fifteen years in laboratories around the world, including the California Institute of Technology's Jet Propulsion Laboratory.
The authors examine the underlying theoretical framework of coupled-oscillator systems, clearly explaining the linear and nonlinear formalisms used in the development of coupled-oscillator arrays, while introducing a variety of state-of-the-art methodologies, design solutions, and tools for applying this control scheme. Readers will find:
Numerous implementation examples of coupled-oscillator array prototypes
A continuum model that permits application of diffusion theory to the analysis of phase dynamics
A demonstration of the array behavior through experimental results that validate the linearized theory
Examples of how incorporating coupling delay restores causality, including the latest published results
Guidance on how to accurately analyze and optimize coupled-oscillator arrays using modern simulation tools
A review of current developments, including the design of compact couple-oscillator array antennas
Complete with 150 diagrams and photographs, Coupled-Oscillator Based Active-Array Antennas is a highly useful tutorial for antenna designers and a valuable reference for researchers and engineers wishing to learn about this cutting-edge technology.
Table of contents
- Coverpage
- Titlepage
- Copyright
- Dedication
- Contents
- Foreword
- Preface
- Acknowledgments
- Authors
- PART I: THEORY AND ANALYSIS
- PART II: EXPERIMENTAL WORK AND APPLICATIONS
-
PART III: NONLINEAR BEHAVIOR
-
Chapter 7 Perturbation Models for Stability, Phase Noise, and Modulation
- 7.1 Preliminaries of Dynamical Systems
- 7.2 Bifurcations of Nonlinear Dynamical Systems
- 7.3 The Averaging Method and Multiple Time Scales
- 7.4 Averaging Theory in Coupled Oscillator Systems
- 7.5 Obtaining the Parameters of the van der Pol Oscillator Model
- 7.6 An Alternative Perturbation Model for Coupled-Oscillator Systems
- 7.7 Matrix Equations for the Steady State and Stability Analysis
- 7.8 A Comparison between the Two Perturbation Models for Coupled Oscillator Systems
- 7.9 Externally Injection-Locked COAs
- 7.10 Phase Noise
- 7.11 Modulation
- 7.12 Coupled Phase-Locked Loops
- 7.13 Conclusion
-
Chapter 8 Numerical Methods for Simulating Coupled-Oscillator Arrays
- 8.1 Introduction to Numerical Methods
- 8.2 Obtaining Periodic Steady-State Solutions of Autonomous Circuits in Harmonic-Balance Simulators
- 8.3 Numerical Analysis of a Voltage-Controlled Oscillator
- 8.4 Numerical Analysis of a Five-Element Linear Coupled-Oscillator Array
- 8.5 Numerical Analysis of an Externally Injection-Locked Five-Element Linear Coupled-Oscillator Array
- 8.6 Harmonic Radiation for Extended Scanning Range
- 8.7 Numerical Analysis of a Self-Oscillating Mixer
- 8.8 Conclusion
-
Chapter 9 Beamforming in Coupled-Oscillator Arrays
- 9.1 Preliminary Concepts of Convex Optimization
- 9.2 Beamforming in COAs
- 9.3 Stability Optimization of the Coupled-Oscillator Steady-State Solution
- 9.4 Multi-Beam Pattern Generation Using Coupled-Oscillator Arrays
- 9.5 Control of the Amplitude Dynamics
- 9.6 Adaptive Coupled-Oscillator Array Beamformer
- 9.7 Conclusion
- Chapter 10 Overall Conclusions and Possible Future Directions
-
Chapter 7 Perturbation Models for Stability, Phase Noise, and Modulation
- REFERENCES
- ACRONYMS AND ABBREVIATIONS
- INDEX
Product information
- Title: Coupled-Oscillator Based Active-Array Antennas
- Author(s):
- Release date: July 2012
- Publisher(s): Wiley
- ISBN: 9781118235294
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