Small Antennas:Miniaturization Techniques & Applications
Small Antennas:Miniaturization Techniques & Applications

Author: John Volakis

Publisher: McGraw Hill Professional

Published: 2009-12-22

Total Pages: 449

ISBN-13: 0071625542

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Next-generation small antenna design techniques This authoritative text provides the most up-to-date methods on the theory and design of small antennas, including an extensive survey of small antenna literature published over the past several years. Written by experts at the forefront of antenna research, Small Antennas: Miniaturization Techniques & Applications begins with a detailed presentation of small antenna theory--narrowband and wideband--and progresses to small antenna design methods, such as materials and shaping approaches for multiband and wideband antennas. Generic miniaturization techniques are presented for narrowband, multiband, and wideband antennas. Two chapters devoted to metamaterials antennas and methods to achieve optimal small antennas, as well as a chapter on RFID technologies and related antennas, are included in this comprehensive volume. Coverage includes: Small antenna theory and optimal parameters Theory and limits of wideband electrically small antennas Extensive literature survey of small antenna designs Practical antenna miniaturization approaches Conformal wideband antennas based on spirals Negative refractive index (NRI) metamaterial and electromagnetic band gap (EBG) based antennas Small antennas based on magnetic photonic and degenerate band edge crystals Impedance matching for small antennas using passive and active circuits RFID antennas and technology

Multiantenna Systems for MIMO Communications
Multiantenna Systems for MIMO Communications

Author: Franco De Flaviis

Publisher: Morgan & Claypool Publishers

Published: 2013-08-01

Total Pages: 266

ISBN-13: 1598290894

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Advanced communication scenarios demand the development of new systemswhere antenna theory, channel propagation and communication models are seen from a common perspective as a way to understand and optimize the system as a whole. In this context, a comprehensive multiantenna formulation for multiple-input multiple-output systems is presented with a special emphasis on the connection of the electromagnetic and communication principles. Starting from the capacity for amultiantenna system, the book reviews radiation, propagation, and communicationmechanisms, paying particular attention to the vectorial, directional, and timefrequency characteristics of the wireless communication equation for low- and high-scattering environments. Based on the previous concepts, different space—time methods for diversity and multiplexing applications are discussed, multiantenna modeling is studied, and specific tools are introduced to analyze the antenna coupling mechanisms and formulate appropriate decorrelation techniques.Miniaturization techniques for closely spaced antennas are studied, and its fundamental limits and optimization strategies are reviewed. Finally, different practical multiantenna topologies for new communication applications are presented, and its main parameters discussed. A relevant feature is a collection of synthesis exercises that review the main topics of the book and introduces state-of-the art system architectures and parameters, facilitating its use either as a text book or as a support tool for multiantenna systems design. Table of Contents: Principles of Multiantenna Communication Systems / The Radio Channel for MIMO Communication Systems / Coding Theory for MIMO Communication Systems / Antenna Modeling for MIMO Communication Systems / Design of MPAs for MIMO Communication Systems / Design Examples and Performance Analysis of Different MPAs / References / List of Acronyms / List of Symbols / Operators and Mathematical Symbols

Applications of Artificial Electromagnetic Materials for the Miniaturization of Antennas
Applications of Artificial Electromagnetic Materials for the Miniaturization of Antennas

Author: Logan A. Loeb

Publisher:

Published: 2011

Total Pages: 192

ISBN-13:

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The desire to create smaller electronic devices for personal communications and body-worn and military applications has led to a great community interest in the field of antenna miniaturization. The use of artificial electromagnetic materials in heterogeneous material loading of devices has been studied. The fabrication and characterization of both silicone and ceramic composites was well as cyanate ester resin and ceramic compositions were studied and are discussed. Heterogeneous loading with artificial dielectric materials are investigated with two miniaturized microwave structures - a 90° hybrid coupler and a microstrip patch antenna. Two additional applications for these materials in device miniaturization are also proposed. The objective of the thesis is to provide details of the production and measurement of those artificial materials and insight into how they can be effectively applied to miniaturize designs.

Communications, Signal Processing, and Systems
Communications, Signal Processing, and Systems

Author: Qilian Liang

Publisher: Springer Nature

Published: 2022-03-30

Total Pages: 1270

ISBN-13: 9811903905

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This book brings together papers presented at the 2021 International Conference on Communications, Signal Processing, and Systems, which provides a venue to disseminate the latest developments and to discuss the interactions and links between these multidisciplinary fields. Spanning topics ranging from communications, signal processing and systems, this book is aimed at undergraduate and graduate students in Electrical Engineering, Computer Science and Mathematics, researchers and engineers from academia and industry as well as government employees (such as NSF, DOD and DOE).

Technologies for Spacecraft Antenna Engineering Design
Technologies for Spacecraft Antenna Engineering Design

Author: Rui You

Publisher: Springer Nature

Published: 2020-09-14

Total Pages: 459

ISBN-13: 9811558337

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This book focuses on engineering design approaches for spacecraft antennas. Based on their functions in spacecraft, it discusses practical antenna design, measurement and testing. Most of the antennas covered originated at the China Academy of Space Technology (CAST), which has launched almost 300 satellites into orbit. The book presents antenna systems for seven existing spacecraft designs, while also introducing readers to new antenna technologies for spacecraft. This book is intended for researchers, graduate students, and engineers in various fields of aerospace technology and astronautics, especially spacecraft design, communication engineering and related areas.

Electromagnetics of Body Area Networks
Electromagnetics of Body Area Networks

Author: Douglas H. Werner

Publisher: John Wiley & Sons

Published: 2016-07-20

Total Pages: 644

ISBN-13: 1119083001

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The book is a comprehensive treatment of the field, covering fundamental theoretical principles and new technological advancements, state-of-the-art device design, and reviewing examples encompassing a wide range of related sub-areas. In particular, the first area focuses on the recent development of novel wearable and implantable antenna concepts and designs including metamaterial-based wearable antennas, microwave circuit integrated wearable filtering antennas, and textile and/or fabric material enabled wearable antennas. The second set of topics covers advanced wireless propagation and the associated statistical models for on-body, in-body, and off-body modes. Other sub-areas such as efficient numerical human body modeling techniques, artificial phantom synthesis and fabrication, as well as low-power RF integrated circuits and related sensor technology are also discussed. These topics have been carefully selected for their transformational impact on the next generation of body-area network systems and beyond.

The World of Applied Electromagnetics
The World of Applied Electromagnetics

Author: Akhlesh Lakhtakia

Publisher: Springer

Published: 2017-08-08

Total Pages: 735

ISBN-13: 3319584030

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This book commemorates four decades of research by Professor Magdy F. Iskander (Life Fellow IEEE) on materials and devices for the radiation, propagation, scattering, and applications of electromagnetic waves, chiefly in the MHz-THz frequency range as well on electromagnetics education. This synopsis of applied electromagnetics, stemming from the life and times of just one person, is meant to inspire junior researchers and reinvigorate mid-level researchers in the electromagnetics community. The authors of this book are internationally known researchers, including 14 IEEE fellows, who highlight interesting research and new directions in theoretical, experimental, and applied electromagnetics.