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Dielectric Materials For Wireless Communication

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Dielectric Materials for Wireless Communication

Dielectric Materials for Wireless Communication Book
Author : Mailadil T. Sebastian
Publisher : Elsevier
Release : 2010-07-07
ISBN : 9780080560502
Language : En, Es, Fr & De

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Book Description :

Microwave dielectric materials play a key role in our global society with a wide range of applications, from terrestrial and satellite communication including software radio, GPS, and DBS TV to environmental monitoring via satellite. A small ceramic component made from a dielectric material is fundamental to the operation of filters and oscillators in several microwave systems. In microwave communications, dielectric resonator filters are used to discriminate between wanted and unwanted signal frequencies in the transmitted and received signal. When the wanted frequency is extracted and detected, it is necessary to maintain a strong signal. For clarity it is also critical that the wanted signal frequencies are not affected by seasonal temperature changes. In order to meet the specifications of current and future systems, improved or new microwave components based on dedicated dielectric materials and new designs are required. The recent progress in microwave telecommunication, satellite broadcasting and intelligent transport systems (ITS) has resulted in an increased demand for Dielectric Resonators (DRs). With the recent revolution in mobile phone and satellite communication systems using microwaves as the propagation media, the research and development in the field of device miniaturization has been a major challenge in contemporary Materials Science. In a mobile phone communication, the message is sent from a phone to the nearest base station, and then on via a series of base stations to the other phone. At the heart of each base station is the combiner/filter unit which has the job of receiving the messages, keeping them separate, amplifying the signals and sending then onto the next base station. For such a microwave circuit to work, part of it needs to resonate at the specific working frequency. The frequency determining component (resonator) used in such a high frequency device must satisfy certain criteria. The three important characteristics required for a dielectric resonator are (a) a high dielectric constant which facilitates miniaturization (b) a high quality factor (Qxf) which improves the signal-to-noise ratio, (c) a low temperature coefficient of the resonant frequency which determines the stability of the transmitted frequency. During the past 25 years scientists the world over have developed a large number of new materials (about 3000) or improved the properties of known materials. About 5000 papers have been published and more than 1000 patents filed in the area of dielectric resonators and related technologies. This book brings the data and science of these several useful materials together, which will be of immense benefit to researchers and engineers the world over. The topics covered in the book includes factors affecting the dielectric properties, measurement of dielectric properties, important low loss dielectric material systems such as perovskites, tungsten bronze type materials, materials in BaO-TiO2 system, (Zr,Sn)TiO4, alumina, rutile, AnBn-1O3n type materials, LTCC, ceramic-polymer composites etc. The book also has a data table listing all reported low loss dielectric materials with properties and references arranged in the order of increasing dielectric constant. Collects together in one source data on all new materials used in wireless communication Includes tabulated properties of all reported low loss dielectric materials In-depth treatment of dielectric resonator materials

Dielectric Materials for Wireless Communication

Dielectric Materials for Wireless Communication Book
Author : Mailadil T. Sebastian
Publisher : Elsevier Science
Release : 2008-09-26
ISBN : 9780080453309
Language : En, Es, Fr & De

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Book Description :

Microwave dielectric materials play a key role in our global society with a wide range of applications, from terrestrial and satellite communication including software radio, GPS, and DBS TV to environmental monitoring via satellite. A small ceramic component made from a dielectric material is fundamental to the operation of filters and oscillators in several microwave systems. In microwave communications, dielectric resonator filters are used to discriminate between wanted and unwanted signal frequencies in the transmitted and received signal. When the wanted frequency is extracted and detected, it is necessary to maintain a strong signal. For clarity it is also critical that the wanted signal frequencies are not affected by seasonal temperature changes. In order to meet the specifications of current and future systems, improved or new microwave components based on dedicated dielectric materials and new designs are required. The recent progress in microwave telecommunication, satellite broadcasting and intelligent transport systems (ITS) has resulted in an increased demand for Dielectric Resonators (DRs). With the recent revolution in mobile phone and satellite communication systems using microwaves as the propagation media, the research and development in the field of device miniaturization has been a major challenge in contemporary Materials Science. In a mobile phone communication, the message is sent from a phone to the nearest base station, and then on via a series of base stations to the other phone. At the heart of each base station is the combiner/filter unit which has the job of receiving the messages, keeping them separate, amplifying the signals and sending then onto the next base station. For such a microwave circuit to work, part of it needs to resonate at the specific working frequency. The frequency determining component (resonator) used in such a high frequency device must satisfy certain criteria. The three important characteristics required for a dielectric resonator are (a) a high dielectric constant which facilitates miniaturization (b) a high quality factor (Qxf) which improves the signal-to-noise ratio, (c) a low temperature coefficient of the resonant frequency which determines the stability of the transmitted frequency. During the past 25 years scientists the world over have developed a large number of new materials (about 3000) or improved the properties of known materials. About 5000 papers have been published and more than 1000 patents filed in the area of dielectric resonators and related technologies. This book brings the data and science of these several useful materials together, which will be of immense benefit to researchers and engineers the world over. The topics covered in the book includes factors affecting the dielectric properties, measurement of dielectric properties, important low loss dielectric material systems such as perovskites, tungsten bronze type materials, materials in BaO-TiO2 system, (Zr,Sn)TiO4, alumina, rutile, AnBn-1O3n type materials, LTCC, ceramic-polymer composites etc. The book also has a data table listing all reported low loss dielectric materials with properties and references arranged in the order of increasing dielectric constant. Collects together in one source data on all new materials used in wireless communication Includes tabulated properties of all reported low loss dielectric materials In-depth treatment of dielectric resonator materials

Microwave Materials for Wireless Applications

Microwave Materials for Wireless Applications Book
Author : David Cruickshank
Publisher : Artech House
Release : 2011
ISBN : 160807093X
Language : En, Es, Fr & De

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Book Description :

This practical resource offers you an in-depth, up-to-date understanding of the use of microwave magnetic materials for cutting-edge wireless applications. The book discusses device applications used in wireless infrastructure base stations, point-to-point radio links, and a range of more specialized microwave systems. You find detailed discussions on the attributes of each family of magnetic materials with respect to specific wireless applications. Moreover, the book addresses two of the hottest topics in the field today OCo insertion loss and intermodulation. This comprehensive reference also covers ancillary materials that are used with microwave magnetic materials, such as dielectrics, absorbers, and conductors."

Microwave Materials and Applications

Microwave Materials and Applications Book
Author : Mailadil T. Sebastian,Rick Ubic,Heli Jantunen
Publisher : John Wiley & Sons
Release : 2017-03-02
ISBN : 1119208556
Language : En, Es, Fr & De

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Book Description :

The recent rapid progress in wireless telecommunication, including the Internet of Things, 5th generation wireless systems, satellite broadcasting, and intelligent transport systems has increased the need for low-loss dielectric materials and modern fabrication techniques. These materials have excellent electrical, dielectric, and thermal properties and have enormous potential, especially in wireless communication, flexible electronics, and printed electronics. Microwave Materials and Applications discusses the methods commonly employed for measuring microwave dielectric properties, the various attempts reported to solve problems of materials chemistry and crystal structure, doping, substitution, and composite formation, highlighting the processing techniques, morphology influences, and applications of microwave materials whilst summarizing many of the recent technical research accomplishments in the area of microwave dielectrics and applications Chapters examine: Oxide ceramics for dielectric resonators and substrates HTCC, LTCC and ULTCC tapes for substrates Polymer ceramic composites for printed circuit boards Elastomer-ceramic composites for flexible electronics Dielectric inks EMI shielding materials Microwave ferrites A comprehensive Appendix presents the fundamental properties for more than 4000 low-loss dielectric ceramics, their composition, crystal structure, and their microwave dielectric properties. Microwave Materials and Applications presents a comprehensive view of all aspects of microwave materials and applications, making it useful for scientists, industrialists, engineers, and students working on current and emerging applications of wireless communications and consumer electronics.

Microwave and Wireless Communications Technology

Microwave and Wireless Communications Technology Book
Author : Joseph Carr
Publisher : Newnes
Release : 1997-01-02
ISBN : 9780750697071
Language : En, Es, Fr & De

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Book Description :

This text offers a practical, device-based approach to the study of microwave and wireless communications. Student objectives, questions and problems, and end-of-chapter summaries are used to reinforce the points made

Materials and Processes for Wireless Communications

Materials and Processes for Wireless Communications Book
Author : Taki Negas,Hung C. Ling
Publisher : Amer Ceramic Society
Release : 1995
ISBN :
Language : En, Es, Fr & De

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Book Description :

Introducing ceramicists to the field of wireless communication, 18 papers cover applications, measurements, designs, and materials. The topics include applications in high-volume microwaves and portable radios, microwave measurement of the complex permittivity and permeability of materials, ceramic-

Advances in Dielectric Materials and Electronic Devices

Advances in Dielectric Materials and Electronic Devices Book
Author : K. M. Nair,Ruyan Guo,Amar S. Bhalla,D. Suvorov,S.-I. Hirano
Publisher : John Wiley & Sons
Release : 2012-04-11
ISBN : 1118408179
Language : En, Es, Fr & De

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Book Description :

This proceedings contains papers presented at the Advanced Dielectric Materials: Design, Preparation, Processing and Applications; and Advanced Dielectrics for Wireless Communications symposia. Topics include design of material, materials synthesis and processing, processing-microstructure-property relationship, multilayer device materials, thin and thick films, device applications, low temperature co-fired ceramics (LTCC)for multilayer devices, microwave dielectric materials and much more.

Wireless Communication Systems

Wireless Communication Systems Book
Author : Ke-Lin Du,M. N. S. Swamy
Publisher : Cambridge University Press
Release : 2010-04-15
ISBN : 1139485768
Language : En, Es, Fr & De

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Book Description :

This practically-oriented, all-inclusive guide covers all the major enabling techniques for current and next-generation cellular communications and wireless networking systems. Technologies covered include CDMA, OFDM, UWB, turbo and LDPC coding, smart antennas, wireless ad hoc and sensor networks, MIMO, and cognitive radios, providing readers with everything they need to master wireless systems design in a single volume. Uniquely, a detailed introduction to the properties, design, and selection of RF subsystems and antennas is provided, giving readers a clear overview of the whole wireless system. It is also the first textbook to include a complete introduction to speech coders and video coders used in wireless systems. Richly illustrated with over 400 figures, and with a unique emphasis on practical and state-of-the-art techniques in system design, rather than on the mathematical foundations, this book is ideal for graduate students and researchers in wireless communications, as well as for wireless and telecom engineers.

Microwave Resonators and Filters for Wireless Communication

Microwave Resonators and Filters for Wireless Communication Book
Author : M. Makimoto,S. Yamashita
Publisher : Springer Science & Business Media
Release : 2013-03-09
ISBN : 3662043254
Language : En, Es, Fr & De

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Book Description :

This book describes the basic theory of microwave resonators and filters, and practical design methods for wireless communication equipment. The microwave resonators and filters described provide a basis for building more compact, lighter-weight mobile communication equipment with longer operating times.

Advances in Dielectric Ceramic Materials

Advances in Dielectric Ceramic Materials Book
Author : K. M. Nair,A. S. Bhalla
Publisher : Amer Ceramic Society
Release : 1998
ISBN :
Language : En, Es, Fr & De

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Book Description :

Contains 43 articles on such topics as: causes of dielectric dispersion in ferroelectric materials, microwave characterization of dielectric ceramics for wireless communications, dielectric properties of barium titanate ceramics as a function of grain size, single domain intrinsic properties of meso

Wireless Communications

Wireless Communications Book
Author : Andreas F. Molisch
Publisher : John Wiley & Sons
Release : 2012-02-06
ISBN : 1118355687
Language : En, Es, Fr & De

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Book Description :

"Professor Andreas F. Molisch, renowned researcher and educator, has put together the comprehensive book, Wireless Communications. The second edition, which includes a wealth of new material on important topics, ensures the role of the text as the key resource for every student, researcher, and practitioner in the field." —Professor Moe Win, MIT, USA Wireless communications has grown rapidly over the past decade from a niche market into one of the most important, fast moving industries. Fully updated to incorporate the latest research and developments, Wireless Communications, Second Edition provides an authoritative overview of the principles and applications of mobile communication technology. The author provides an in-depth analysis of current treatment of the area, addressing both the traditional elements, such as Rayleigh fading, BER in flat fading channels, and equalisation, and more recently emerging topics such as multi-user detection in CDMA systems, MIMO systems, and cognitive radio. The dominant wireless standards; including cellular, cordless and wireless LANs; are discussed. Topics featured include: wireless propagation channels, transceivers and signal processing, multiple access and advanced transceiver schemes, and standardised wireless systems. Combines mathematical descriptions with intuitive explanations of the physical facts, enabling readers to acquire a deep understanding of the subject. Includes new chapters on cognitive radio, cooperative communications and relaying, video coding, 3GPP Long Term Evolution, and WiMax; plus significant new sections on multi-user MIMO, 802.11n, and information theory. Companion website featuring: supplementary material on 'DECT', solutions manual and presentation slides for instructors, appendices, list of abbreviations and other useful resources.

Millimetre Wave Antennas for Gigabit Wireless Communications

Millimetre Wave Antennas for Gigabit Wireless Communications Book
Author : Kao-Cheng Huang,David J. Edwards
Publisher : John Wiley & Sons
Release : 2008-10-13
ISBN : 0470712139
Language : En, Es, Fr & De

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Book Description :

Complete and comprehensive application-focused reference on millimetre wave antennas Millimetre Wave Antennas for Gigabit Wireless Communications covers a vast wealth of material with a strong focus on the current design and analysis principles of millimetre wave antennas for wireless devices. It provides practising engineers with the design rules and considerations required in designing antennas for the terminal. The authors include coverage of new configurations with advanced angular and frequency filtering characteristics, new design and analysis techniques, and methods for filter miniaturization. The book reviews up-to-date research results and utilizes numerous design examples to emphasize computer analysis and synthesis whilst also discussing the applications of commercially available software. Key Features: Advanced and up-to-date treatment of one of the fastest growing fields of wireless communications Covers topics such as Gigabit wireless communications and its required antennas, passive and active antenna design and analysis techniques, multibeam antennas and MIMO, IEEE 802.15.3c, WiMedia®, and advanced materials and technologies Offers a practical guide to integrated antennas for specific configurations requirements Addresses a number of complex, real-world problems that system and antenna engineers are going to face in millimetre-wave communications industry and provides solutions Contains detailed design examples, drawings and predicted performance This book is an invaluable tool for antenna professionals (engineers, designers, and developers), microwave professionals, wireless communication system professionals, and industries with microwave and millimetre wave research projects. Advanced students and researchers working in the field of millimetre wave engineering will also find this book very useful.

Information Systems Design and Intelligent Applications

Information Systems Design and Intelligent Applications Book
Author : J. K. Mandal,Suresh Chandra Satapathy,Manas Kumar Sanyal,Partha Pratim Sarkar,Anirban Mukhopadhyay
Publisher : Springer
Release : 2015-01-20
ISBN : 8132222504
Language : En, Es, Fr & De

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Book Description :

The second international conference on INformation Systems Design and Intelligent Applications (INDIA – 2015) held in Kalyani, India during January 8-9, 2015. The book covers all aspects of information system design, computer science and technology, general sciences, and educational research. Upon a double blind review process, a number of high quality papers are selected and collected in the book, which is composed of two different volumes, and covers a variety of topics, including natural language processing, artificial intelligence, security and privacy, communications, wireless and sensor networks, microelectronics, circuit and systems, machine learning, soft computing, mobile computing and applications, cloud computing, software engineering, graphics and image processing, rural engineering, e-commerce, e-governance, business computing, molecular computing, nano-computing, chemical computing, intelligent computing for GIS and remote sensing, bio-informatics and bio-computing. These fields are not only limited to computer researchers but also include mathematics, chemistry, biology, bio-chemistry, engineering, statistics, and all others in which computer techniques may assist.

THE SHAPE SYNTHESIS OF DIELECTRIC RESONATOR ANTENNAS FOR WIRELESS COMMUNICATION SYSTEMS

THE SHAPE SYNTHESIS OF DIELECTRIC RESONATOR ANTENNAS FOR WIRELESS COMMUNICATION SYSTEMS  Book
Author : Hamad Alroughani
Publisher :
Release : 2018
ISBN :
Language : En, Es, Fr & De

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Book Description :

Antennas are needed in wireless communications of any kind and are key to the quality of any wireless link, irrespective of its use. The abilities needed of a particular antenna depend on its application, and so the cost of antennas in current use varies from a few cents for those in mobile devices, to many millions of dollars for the main mission antennas on satellites or sophisticated radar antennas in military use. They are indeed the eyes and ears of modern wireless communications systems. Dielectric resonator antennas are one of the popular antenna types and hold the promise of requiring less room for proper operation, in essence due to the loading effect of the material. The principal original contributions to antenna shape synthesis is presented in this dissertation; an approach is devised for the three-dimensional shape synthesis of dielectric resonator antennas which are subject to geometry restrictions. It is entirely new, representing the first time any three-dimensional shape optimization of dielectric resonator antennas has been described. It is particularly novel because, not only does it shape the dielectric material, but it permits the shape optimization process to proceed without the restriction of a pre-determined feed-point location. The approach is made possible through properly connecting antenna performance parameters to the use of characteristic mode concept which allows the computation of modal weighting coefficients using the surrogate source idea that is established. These coefficients are then used in the definition of the objective functions. The shape synthesis technique was successfully applied to three dielectric resonator antenna examples, each with different design requirements and constraints. Its success in these cases demonstrates the effectiveness of the new shaping technique. Computed performance is supported by experimental results. The implementation of the shaping tool itself, apart from being needed to validate the shaping process, is an addition in its own right. It has purposefully been fully implemented using commercially available software, for the computational electromagnetics, the optimization algorithm, and the controller that manages the shaping process and allows communication between the various steps. The advantage of being able to use such commercial codes is that the approach at once becomes more accessible to others. The determination of the characteristic modes of dielectric objects has been fraught with difficulties, and there have been uncertainties in the literature as to precisely what was being computed. A number of aspects of characteristic mode theory therefore had to be investigated and repaired before the shape synthesis work could proceed. Although they might not be linked directly to the shape synthesis process, other significant contributions are related to the characteristic mode analysis by developing a more robust method for tracking the characteristic modes of dielectric objects, presenting a more general (broadened) formulation of the sub-structure characteristic mode concept and providing formal mathematical proofs of the orthogonality properties of sub-structure modes.

Advanced Dielectric Piezoelectric and Ferroelectric Thin Films

Advanced Dielectric  Piezoelectric and Ferroelectric Thin Films Book
Author : Bruce A. Tuttle,Chonglin Chen,Quanxi Jia,R. Ramesh
Publisher : John Wiley & Sons
Release : 2012-04-17
ISBN : 1118407229
Language : En, Es, Fr & De

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Book Description :

Advances in synthesis and characterization of dielectric, piezoelectric and ferroelectric thin films are included in this volume. Dielectric, piezoelectric and ferroelectric thin films have a tremendous impact on a variety of commercial and military systems including tunable microwave devices, memories, MEMS devices, actuators and sensors. Recent work on piezoelectric characterization, AFE to FE dielectric phase transformation dielectrics, solution and vapor deposited thin films, and materials integration are among the topics included. Novel approaches to nanostructuring, characterization of material properties and physical responses at the nanoscale also is included.

Wireless Communication in Underground Mines

Wireless Communication in Underground Mines Book
Author : L. K. Bandyopadhyay,S. K. Chaulya,P. K. Mishra
Publisher : Springer Science & Business Media
Release : 2009-08-29
ISBN : 9780387981659
Language : En, Es, Fr & De

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Book Description :

Wireless communication has emerged as an independent discipline in the past decades. Everything from cellular voice telephony to wireless data transmission using wireless sensor networks has profoundly impacted the safety, production, and productivity of industries and our lifestyle as well. After a decade of exponential growth, the wireless industry is one of the largest industries in the world. Therefore, it would be an injustice if the wireless communication is not explored for mining industry. Underground mines, which are characterized by their tough working conditions and hazardous environments, require fool-proof mine-wide communication systems for smooth functioning of mine workings and ensuring better safety. Proper and re- able communication systems not only save the machine breakdown time but also help in immediate passing of messages from the vicinity of underground working area to the surface for day-to-day normal mining operations as well as for speedy rescue operations in case of disaster. Therefore, a reliable and effective commu- cation system is an essential requisite for safe working, and maintaining requisite production and productivity of underground mines. Most of the existing systems generally available in underground mines are based on line (wired) communication principle, hence these are unable to withstand in the disaster conditions and dif?cult to deploy in inaccessible places. Therefore, wireless communication is an indispe- able, reliable, and convenient system and essential in case of day-to-day normal duty or disaster situations.

Handbook of Antennas in Wireless Communications

Handbook of Antennas in Wireless Communications Book
Author : Lal Chand Godara
Publisher : CRC Press
Release : 2018-10-03
ISBN : 1420042149
Language : En, Es, Fr & De

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Book Description :

The move toward worldwide wireless communications continues at a remarkable pace, and the antenna element of the technology is crucial to its success. With contributions from more than 30 international experts, the Handbook of Antennas in Wireless Communications brings together all of the latest research and results to provide engineering professionals and students with a one-stop reference on the theory, technologies, and applications for indoor, hand-held, mobile, and satellite systems. Beginning with an introduction to wireless communications systems, it offers an in-depth treatment of propagation prediction and fading channels. It then explores antenna technology with discussion of antenna design methods and the various antennas in current use or development for base stations, hand held devices, satellite communications, and shaping beams. The discussions then move to smart antennas and phased array technology, including details on array theory and beamforming techniques. Space diversity, direction-of-arrival estimation, source tracking, and blind source separation methods are addressed, as are the implementation of smart antennas and the results of field trials of systems using smart antennas implemented. Finally, the hot media topic of the safety of mobile phones receives due attention, including details of how the human body interacts with the electromagnetic fields of these devices. Its logical development and extensive range of diagrams, figures, and photographs make this handbook easy to follow and provide a clear understanding of design techniques and the performance of finished products. Its unique, comprehensive coverage written by top experts in their fields promises to make the Handbook of Antennas in Wireless Communications the standard reference for the field.

Microwave Material Applications Device Miniaturization and Integration

Microwave Material Applications  Device Miniaturization and Integration Book
Author : David B. Cruickshank
Publisher : Artech House
Release : 2016-10-31
ISBN : 1630814350
Language : En, Es, Fr & De

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Book Description :

This comprehensive new resource based on the classic Artech House title, Microwave Materials for Wireless Applications, introduces the use of new microwave materials for passive devices including ferrites, magnetization garnets, dielectric materials, and absorbers for wireless and antenna applications. This book explores a new set of magnetic and dielectric materials that assist with size reduction of passive devices such as ferrite isolators and circulators. Revised data on the applications of absorbers, including examples of different combinations of magnetic, dielectric, and absorber materials into integrated devices is presented. Meta-materials for antennas and potential antenna integration onto soft boards or LTCC filter technologies using tunable devices with new materials are covered. Professionals learn how new material designs use properties of certain ions in oxide compounds to reduce their physical size, including in cellular base stations designed for 4G and 5G cell phone communication systems. This book exhibits how the integration of new materials into cellular systems using common transmission lines will further save size and reduce complexity. New technologies are presented demonstrating the use of sol-gel processing and ceramic processing in the use of low temperature co-fired ceramics, plastic molding, and 3D printing demonstrating improved device designs.