Defected ground structure (DGS) based antennas :, Guha, Debatosh,
Автор: Saha Название: Multifunctional Ultrawideband Antennas ISBN: 1138553549 ISBN-13(EAN): 9781138553545 Издательство: Taylor&Francis Рейтинг: Цена: 22202.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: This book provides good exposure to beginners on the salient features and recent requirements of the UWB antennas and allied systems. It is also be a good reference book for postgraduate courses in antennas and wireless technology.
Автор: Theodore Anderson Название: Plasma antennas second edition ISBN: 1630817503 ISBN-13(EAN): 9781630817503 Издательство: Artech House Рейтинг: Цена: 21067.00 р. Наличие на складе: Нет в наличии.
Описание: This updated edition of an Artech House classic contains steering, focusing, and spreading of antenna beams using the physics of refraction of electromagnetic waves through a plasma. Pulsing circuitry for ionizing plasma antennas with low power requirements are covered. New and improved smart plasma antenna and applications to wi-fi and the applications of plasma antennas are discussed.
Experimental work on plasma antenna noise and new progress on ruggedization and custom-made plasma tubes are also presented.This unique resource provides readers with a solid understanding of the efficient design and prototype development of plasma antennas to meet the challenge of reducing the power required to ionize the gas at various plasma densities. Thorough coverage of the technical underpinnings of plasma antennas, as well as important discussions on current markets and applications are discussed. Additionally, the book presents experimental work in this cutting-edge area and reveals the latest developments in the field.
Автор: Saez De Adana, Francisco Gomez Perez, Josefa Tayebi Tayebi, Abdelhamid Casado Ballesteros, Juan Название: Applications of geographic information systems for wireless network planning ISBN: 1630817635 ISBN-13(EAN): 9781630817633 Издательство: Artech House Рейтинг: Цена: 21991.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: This practical book shows the procedure to integrate, in a practical way, empirical propagation methods with geographical information systems (GIS) to obtain the radio coverage in open environments. It includes the theoretical explanation of empirical methods and GIS but as a basis to develop a real tool that combines both aspects to provide the user a suitable method for the wireless network planning in urban areas. The book introduces the empirical propagation methods and their application to wireless network planning.
The motivation for combining them with the information obtained from geographical information systems is illustrated as well as their application to real situations. The most important empirical methods used to calculate the propagation in open environments are reviewed. Focus is given to the geometrical information needed to prove the necessity of obtaining some geographical information if these methods must be applied to realistic network planning.
A review of the most important GIS is also described. The advantages and disadvantages of every system is analyzed from the point of view of its integration with an empirical propagation method. An application that combines a geographical information system with an empirical propagation method is fully described.
The practical features of this integration are completely studied to allow an engineer to use and develop his own tool. Examples are given in each chapter to fully describe and illustrate the process.
Автор: Balanis Constantine A., Ioannidis Panagiotis I. Название: Introduction smart-antenna ISBN: 1598291769 ISBN-13(EAN): 9781598291766 Издательство: Mare Nostrum (Eurospan) Рейтинг: Цена: 6098.00 р. Наличие на складе: Нет в наличии.
Описание: Provides a broad view of the system aspects of smart antennas. This volume includes an overview of smart antenna concepts, introduces some of the areas that impact smart antennas, and examines the influence of interaction and integration of these areas to Mobile Ad-Hoc Networks. In addition, the general principles and major benefits of using space-time processing are introduced.
Автор: Vinod Kumar Singh, Ratnesh Tiwari, Vikas Dubey, Zakir Ali, Ashutosh Kumar Singh Название: Design and Optimization of Sensors and Antennas for Wearable Devices ISBN: 1522596836 ISBN-13(EAN): 9781522596837 Издательство: Mare Nostrum (Eurospan) Рейтинг: Цена: 28967.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: Wearable continuous monitoring systems are necessary in risky environments such as mining and diving and are especially important in the medical monitoring of patients both in medical facilities and at home. All these applications of monitoring with data transmission functions can be achieved by using wearable antennas. Recently, possibilities of connecting completely independent appliances with textiles have emerged. However, full success will be achieved only when antennas and all related components are entirely converted into 100% textile materials.
Design and Optimization of Sensors and Antennas for Wearable Devices provides innovative insights on the development of adaptable materials and textile antennas that can be used in the construction of wearable devices that are biocompatible and offer high conductivity, low cost, simplistic manufacturing, are comfortable for the wearer, and are water/climate safe and condition amicable. The content within this publication examines data transmission, wearable computing, and medical applications. It is designed for engineers, manufacturers, researchers, academicians, and scientists who are interested in the development of wearable technologies.
Описание: Wearable continuous monitoring systems are necessary in risky environments such as mining and diving and are especially important in the medical monitoring of patients both in medical facilities and at home. All these applications of monitoring with data transmission functions can be achieved by using wearable antennas. Recently, possibilities of connecting completely independent appliances with textiles have emerged. However, full success will be achieved only when antennas and all related components are entirely converted into 100% textile materials. Design and Optimization of Sensors and Antennas for Wearable Devices: Emerging Research and Opportunities provides innovative insights on the development of adaptable materials and textile antennas that can be used in the construction of wearable devices that are biocompatible and offer high conductivity, low cost, simplistic manufacturing, are comfortable for the wearer, and are water/climate safe and condition amicable. The content within this publication examines data transmission, wearable computing, and medical applications. It is designed for engineers, manufacturers, researchers, academicians, and scientists who are interested in the development of wearable technologies.
Автор: Alan J. Sangster Название: Compact Slot Array Antennas for Wireless Communications ISBN: 3030017524 ISBN-13(EAN): 9783030017521 Издательство: Springer Рейтинг: Цена: 23757.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание:
This book describes and provides design guidelines for antennas that achieve compactness by using the slot radiator as the fundamental building block within a periodic array, rather than a phased array. It provides the basic electromagnetic tools required to design and analyse these novel antennas, with sample calculations where relevant. The book presents a focused introduction and valuable insights into the relevant antenna technology, together with an overview of the main directions in the evolving technology of compact planar arrays.
While the book discusses the historical evolution of compact array antennas, its main focus is on summarising the extensive body of literature on compact antennas. With regard to the now ubiquitous slot radiator, it seeks to demonstrate how, despite significant antenna size reductions that at times even seem to defy the laws of physics, desirable radiation pattern properties can be preserved. This is supported by an examination of recent advances in frequency selective surfaces and in metamaterials, which can, if handled correctly, be used to facilitate physics-defying designs.
The book offers a valuable source of information for communication systems and antenna design engineers, especially thanks to its overview of trends in compact planar arrays, yet will also be of interest to students and researchers, as it provides a focused introduction and insights into this highly relevant antenna technology.
Автор: Albert Sabban Название: Low-Visibility Antennas for Communication Systems ISBN: 1138748102 ISBN-13(EAN): 9781138748101 Издательство: Taylor&Francis Рейтинг: Цена: 9645.00 р. Наличие на складе: Поставка под заказ.
Описание: This book delivers a comprehensive and cutting-edge study of the design and application of low-visibility antennas, complete with design considerations and an extensive exploration of radio frequency and antenna measurements.
Автор: Abbasi Qammer H., Fizzah Jilani Syeda, Alomainy Akram Название: Antennas and Propagation for 5g and Beyond ISBN: 1839530979 ISBN-13(EAN): 9781839530975 Издательство: Неизвестно Рейтинг: Цена: 25749.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание:
Transforming the way we live, work, and engage with our environment, 5G and beyond technologies will provide much higher bandwidth and connectivity to billions of devices. This brings enormous opportunities but of course the widespread deployment of these technologies faces challenges, including the need for reliable connectivity, a diverse range of bandwidths, dynamic spectrum sharing, channel modelling and wave propagation for ultra-dense wireless networks, as well as price pressures. The choice of an antenna system will also be a critical component of all node end devices and will present several design challenges such as size, purpose, shape and placement. In this edited book, the authors bring new approaches for exploiting challenging propagation channels and the development of efficient, cost-effective, scalable, and reliable antenna systems and solutions, as well as future perspectives.
The book is aimed at a wide audience of industry and academic researchers, scientists and engineers as well as advanced students in the field of antennas, ICTs, signal processing and electromagnetics. It will also be useful to network and system designers, developers and manufacturers. Stakeholders, government regulators, policy makers and standards bodies can use the information provided here to better understand the effects of the technology on the market and future developments for 5G and beyond systems and networks.
Автор: Thornton Название: Lens Antennas for Communications ISBN: 1118010655 ISBN-13(EAN): 9781118010655 Издательство: Wiley Рейтинг: Цена: 17891.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: The aim of this book is to present the modern design principles and analysis of lens antennas. It gives graduates and RF/Microwave professionals the design insights needed to make full use of lens antennas. Because this topic has not been thoroughly publicized, its importance is underestimated.
Описание: This workbook contains the handouts for Carol Gray`s DVD presentation Writing Social Stories. In her intriguing presentation, Carol Gray explains the elements that make Social Stories so successful and teaches you how to tailor the text to an individual`s specific needs. The engaging DVD is great for parents, teachers, therapists, or for anyone who cares for someone on the spectrum.
Автор: Galvan-Tejada Название: Ultra Wideband Antennas ISBN: 1482206501 ISBN-13(EAN): 9781482206500 Издательство: Taylor&Francis Рейтинг: Цена: 26796.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание:
Ultra Wideband Antennas: Design, Methodologies, and Performance presents the current state of the art of ultra wideband (UWB) antennas, from theory specific for these radiators to guidelines for the design of omnidirectional and directional UWB antennas. Offering a comprehensive overview of the latest UWB antenna research and development, this book:
Discusses the developed theory for UWB antennas in frequency and time domains
Delivers a brief exposition of numerical methods for electromagnetics oriented to antennas
Describes solid-planar equivalence, which allows flat structures to be implemented instead of volumetric antennas
Examines the impedance matching, phase linearity, and radiation patterns as design objectives for omnidirectional and directional antennas
Addresses the time domain signal analysis for UWB antennas, from which the distortion phenomenon can be modeled
Includes illustrative examples, design equations, CST MICROWAVE STUDIO(R) simulations, and MATLAB(R) plot generations
Compares the performance of different UWB antennas, supplying useful insight into particular tendencies and unresolved problems
Ultra Wideband Antennas: Design, Methodologies, and Performance provides a valuable reference for the scientific community, as UWB antennas have a variety of applications in body area networks, radar, imaging, spectrum monitoring, electronic warfare, wireless sensor networks, and more.
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