Coupled-Oscillator Based Active-Array Antennas

Coupled-Oscillator Based Active-Array Antennas PDF Author: Ronald J. Pogorzelski
Publisher: John Wiley & Sons
ISBN: 1118309979
Category : Technology & Engineering
Languages : en
Pages : 382

Get Book Here

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.

Coupled-Oscillator Based Active-Array Antennas

Coupled-Oscillator Based Active-Array Antennas PDF Author: Ronald J. Pogorzelski
Publisher: John Wiley & Sons
ISBN: 1118309979
Category : Technology & Engineering
Languages : en
Pages : 382

Get Book Here

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.

Active Antennas and Quasi-Optical Arrays

Active Antennas and Quasi-Optical Arrays PDF Author: Amir Mortazwi
Publisher: Wiley-IEEE Press
ISBN:
Category : Science
Languages : en
Pages : 360

Get Book Here

Book Description
Electrical Engineering Active Antennas and Quasi-Optical Arrays Whether communications, radar, transportation, or defense drives your interest in solid-state devices at microwave and millimeter-wave frequencies, this ready reference book provides you with a useful review of quasi-optical power combining and active integrated antennas. Brought to you in one convenient volume are key reprinted papers from leading experts in microwave technology. Their valuable perspectives range from the most current advances to historical developments. Included as a special feature is an invited paper, never-before-published, which presents an overview of quasi-optical power combining by noted authority J. W. Mink and colleagues. You will discover other helpful highlighted topics such as: Transmitting and receiving active antennas Spatial power combining oscillators Spatial combining amplifiers Beam control Active integrated antennas and quasi-optical systems Analysis and CAD Emerging technologies—two dimensional quasi-optics

Reconfigurable Active and Passive Planar Antennas for Wireless Communication Systems

Reconfigurable Active and Passive Planar Antennas for Wireless Communication Systems PDF Author: Shiban Kishen Koul
Publisher: Springer Nature
ISBN: 9811965374
Category : Technology & Engineering
Languages : en
Pages : 213

Get Book Here

Book Description
This book presents state-of-the-art trends in reconfigurable active and passive planar antennas and their applications in wireless communication systems operating in the frequency band 5-6 GHz. Due to various key features such as multifunction antenna design, compactness, planar nature, and low cost, these technologies are becoming popular for current and future wireless applications. This book discusses different novel antenna designs and their working principles in detail. The modern and future wireless systems require wideband antennas to accommodate various channels in a single band or in separate bands. The carrier aggregation (CA) has been introduced in the modern wireless systems such as LTE-advanced systems and 5G./6G. In CA, a device can use several channels for transmission and reception. The used channels can exist in the same frequency band (intra-band CA) or in distinct bands (inter-band CA). To accommodate more channels, more bandwidth is required within the operating band. For portable devices, circularly polarized (CP) antennas are more advantageous over linearly polarized antennas since in CP antennas, there is low risk of misalignment and, hence encountering interference. Circularly polarized antenna also provides higher link reliability for the portable devices. To provide high data rates, more bandwidth is needed to accommodate more channels. Various multifunction, compact, and wideband antennas for plethora of applications are addressed in detail in this book. The scope of developing reconfigurable active antennas for application in beam switching, beam steering, wireless charging, security systems, etc., is described. This book concludes by giving glimpses of antenna requirements for future wireless communication systems.

Handbook of Research on Heterogeneous Next Generation Networking: Innovations and Platforms

Handbook of Research on Heterogeneous Next Generation Networking: Innovations and Platforms PDF Author: Kotsopoulos, Stavros
Publisher: IGI Global
ISBN: 1605661090
Category : Computers
Languages : en
Pages : 608

Get Book Here

Book Description
"This book presents state-of-the-art research, developments, and integration activities in combined platforms of heterogeneous wireless networks"--Provided by publisher.

Microwave and Millimeter Wave Circuits and Systems

Microwave and Millimeter Wave Circuits and Systems PDF Author: Apostolos Georgiadis
Publisher: John Wiley & Sons
ISBN: 1118406354
Category : Technology & Engineering
Languages : en
Pages : 552

Get Book Here

Book Description
Microwave and Millimeter Wave Circuits and Systems: Emerging Design, Technologies and Applications provides a wide spectrum of current trends in the design of microwave and millimeter circuits and systems. In addition, the book identifies the state-of-the art challenges in microwave and millimeter wave circuits systems design such as behavioral modeling of circuit components, software radio and digitally enhanced front-ends, new and promising technologies such as substrate-integrated-waveguide (SIW) and wearable electronic systems, and emerging applications such as tracking of moving targets using ultra-wideband radar, and new generation satellite navigation systems. Each chapter treats a selected problem and challenge within the field of Microwave and Millimeter wave circuits, and contains case studies and examples where appropriate. Key Features: Discusses modeling and design strategies for new appealing applications in the domain of microwave and millimeter wave circuits and systems Written by experts active in the Microwave and Millimeter Wave frequency range (industry and academia) Addresses modeling/design/applications both from the circuit as from the system perspective Covers the latest innovations in the respective fields Each chapter treats a selected problem and challenge within the field of Microwave and Millimeter wave circuits, and contains case studies and examples where appropriate This book serves as an excellent reference for engineers, researchers, research project managers and engineers working in R&D, professors, and post-graduates studying related courses. It will also be of interest to professionals working in product development and PhD students.

IEICE Transactions on Electronics

IEICE Transactions on Electronics PDF Author:
Publisher:
ISBN:
Category : Electronics
Languages : en
Pages : 1076

Get Book Here

Book Description


Applications of Nonlinear Dynamics

Applications of Nonlinear Dynamics PDF Author: Visarath In
Publisher: Springer Science & Business Media
ISBN: 3540856323
Category : Technology & Engineering
Languages : en
Pages : 464

Get Book Here

Book Description
The ?eld of applied nonlinear dynamics has attracted scientists and engineers across many different disciplines to develop innovative ideas and methods to study c- plex behavior exhibited by relatively simple systems. Examples include: population dynamics, ?uidization processes, applied optics, stochastic resonance, ?ocking and ?ightformations,lasers,andmechanicalandelectricaloscillators. Acommontheme among these and many other examples is the underlying universal laws of nonl- ear science that govern the behavior, in space and time, of a given system. These laws are universal in the sense that they transcend the model-speci?c features of a system and so they can be readily applied to explain and predict the behavior of a wide ranging phenomena, natural and arti?cial ones. Thus the emphasis in the past decades has been in explaining nonlinear phenomena with signi?cantly less att- tion paid to exploiting the rich behavior of nonlinear systems to design and fabricate new devices that can operate more ef?ciently. Recently, there has been a series of meetings on topics such as Experimental Chaos, Neural Coding, and Stochastic Resonance, which have brought together many researchers in the ?eld of nonlinear dynamics to discuss, mainly, theoretical ideas that may have the potential for further implementation. In contrast, the goal of the 2007 ICAND (International Conference on Applied Nonlinear Dynamics) was focused more sharply on the implementation of theoretical ideas into actual - vices and systems.

Microstructure and Properties of High-Temperature Superconductors

Microstructure and Properties of High-Temperature Superconductors PDF Author: I. A. Parinov
Publisher: Springer Science & Business Media
ISBN: 3642344410
Category : Technology & Engineering
Languages : en
Pages : 788

Get Book Here

Book Description
The main features of high-temperature superconductors (HTSC) that define their properties are intrinsic brittleness of oxide cuprates, the layered anisotropic structure and the supershort coherence length. Taking into account these features, this treatise presents research into HTSC microstructure and properties, and also explores the possibilities of optimization of the preparation techniques and superconducting compositions. The "composition-technique-experiment-theory-model," employed here, assumes considerable HTSC defectiveness and structure heterogeneity and helps to draw a comprehensive picture of modern representations of the microstructure, strength and the related structure-sensitive properties of the materials considered. Special attention is devoted to the Bi-Sr-Ca-Cu-O and Y-Ba-Cu-O families, which currently offer the most promising applications. Including a great number of illustrations and references, this monograph addresses students, post-graduate students and specialists, taking part in the development, preparation and research of new materials. The new edition had been updated intensively, especially experimental investigations and modeling conductive and elastic properties of HTC superconductors have been added.

Millimeter-wave Power-combining with Radiating Oscillator Arrays

Millimeter-wave Power-combining with Radiating Oscillator Arrays PDF Author: Robert Armstrong York
Publisher:
ISBN:
Category :
Languages : en
Pages : 446

Get Book Here

Book Description


Integrated Active Antennas and Spatial Power Combining

Integrated Active Antennas and Spatial Power Combining PDF Author: Julio A. Navarro
Publisher: Wiley-Interscience
ISBN: 9780471049845
Category : Technology & Engineering
Languages : en
Pages : 0

Get Book Here

Book Description
This is the only book currently available that covers this subject. The authors piece together information from diverse areas which is essential to understand integrated and integrated active antennas. Emphasis is placed on active antennas and power combining applications, consolidating the work from numerous researchers. Early chapters lay the foundation for oscillator, antenna, array and power combining theory. Chapter five discusses important testing parameters and techniques for active antenna measurements and includes definitions for equivalent isotropic radiated power, locking gain and locking bandwidth. The last chapter sheds light on beam steering, a more recent development in active antenna arrays. Contains over 200 illustrations.