Download or read book Compact Antennas for High Data Rate Communication written by Jagannath Malik and published by Springer. This book was released on 2017-08-01 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book discusses the development of promising technologies for compact antennas for high data-rate communications. It discusses and analyzes the design of compact ultra-wideband (UWB) and multiple input, multiple output (MIMO) antennas, providing essential know-how for designers, practicing engineers and scientists. These wireless communication technologies enable consumers to have convenient access to a wide range of services – anytime, anywhere. And the introduction of wireless mobile access points eliminates the limitations to communication imposed by geographical location. The Internet has allowed people to access and share information much more rapidly, but in order to achieve higher data rates with the limited available resources and imposed constraints, wireless communication technology needs to be pushed beyond the physical limits of the propagation channel. This book contributes to achieving this goal.

Download or read book Compact Antennas for Mimo Communications written by Chandana K. K. Jayasooriya and published by . This book was released on 2013 with total page 107 pages. Available in PDF, EPUB and Kindle. Book excerpt: The newest cellular communication standard, 4G-LTE (Long Term Evolution) provides an all internet protocol (IP)-based solutions to the high data rate required of mobile communication applications. It offers 100 Mbit/s and 1 Gbit/s for low mobility and high mobility applications, respectively. These high data rates are possible mainly due to the use of multiple antennas at both ends of the communication system. Therefore, antenna design for this new cellular standard is of high interest. Due to the size limitations of a hand-held device (typically, 120 mm x 65 mm x 5 mm (L x W x H)) designing antennas has become more challenging. Minimal antenna size, mutual coupling between different antennas, and compliance with radiation restrictions are some of the challenges that influence the design of antennas for this new standard. This work focuses on designing compact antennas to be used in mobile handsets as well as wireless routers such as in the IEEE 802.11n standard. The first attempt was to design a two-port co-located circular patch antenna (CPA) and an annular ring antenna (ARA) that utilizes pattern diversity. The idea behind pattern diversity is to generate two orthogonal radiation patterns associated with each port. To reduce the size of the antenna, ferrite material is used as the substrate material. Even though the use of ferrite material leads to a significant size reduction, the dimensions of those antennas are too large to fit in a cellular mobile handset. Therefore, a spatially separated half-cycle meander structure was investigated. This antenna was designed to fit into a mobile handset using FEKO simulations, and then fabricated and tested. By using the simulated S-parameters and radiation patterns, all of these antennas were investigated for communication theoretic performance parameters such as bit error rate (BER) and capacity.

Download or read book Compact Antennas for Wireless Communications and Terminals written by Jean-Marc Laheurte and published by John Wiley & Sons. This book was released on 2012-12-27 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt: Compact Antennas for Wireless Communications and Terminals deals with compact microwave antennas and, more specifically, with the planar version of these antennas. Planar antennas are the most appropriate type of antenna in modern communication systems and more generally in all applications requiring miniaturization, integration and conformation such as in mobile phone handsets. The book is suitable for students, engineers and scientists eager to understand the principles of planar and small antennas, their design and fabrication issues, and modern aspects such as UWB antennas, reconfigurable antennas and diversity issues.

Download or read book MIMO Antennas for Wireless Communication written by Leeladhar Malviya and published by CRC Press. This book was released on 2020-12-15 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt: The desired objective of this book is to investigate diversity and mutual coupling effects on MIMO antenna designs for WLAN/WiMAX/LTE applications, controlled with diversity and ground modification techniques including equivalent circuit diagrams. Diversity techniques in MIMO antennas leading to the performance improvement ratings are demonstrated and deliberated. The book contributes towards the development of 2:1 VSWR MIMO antennas with diversity techniques for indoor/outdoor applications for high data rate, QOS, and SNR. The improved MIMO antenna structures are investigated and presented in this book including part of massive MIMO to provide the important aspects of emerging technology. Aimed at researchers, professionals and graduate students in electrical engineering, electromagnetics, communications and signal processing including antenna theory and design, smart antennas, communication systems, this book: Investigates real time MIMO antenna designs for WLAN/WiMAX/LTE applications. Covers effects of ECC, MEG, TARC, and equivalent circuit. Addresses the coupling and diversity aspects of antenna design problem for MIMO systems. Focus on the MIMO antenna designs for the real time applications. Exclusive chapter on 5G Massive MIMO along with case studies throughout the book.

Download or read book Next Generation Antennas written by Prashant Ranjan and published by John Wiley & Sons. This book was released on 2021-07-19 with total page 306 pages. Available in PDF, EPUB and Kindle. Book excerpt: NEXT-GENERATION ANTENNAS: ADVANCES AND CHALLENGES The first book in this exciting new series, written and edited by a group of international experts in the field, this exciting new volume covers the latest advances and challenges in the next generation of antennas. Antenna design and wireless communication has recently witnessed their fastest growth period ever in history, and these trends are likely to continue for the foreseeable future. Due to recent advances in industrial applications as well as antenna, wireless communication, and 5G technology, we are witnessing a variety of developing and expanding new technologies. Compact and low-cost antennas are increasing the demand for ultra-wide bandwidth in next-generation (5G) wireless communication systems and the Internet of Things (IoT). Enabling the next generation of high-frequency communication, various methods have been introduced to achieve reliable high data rate communication links and enhance the directivity of planar antennas. 5G technology can be used in many applications, such as in smart city applications and in smartphones. This technology can satisfy the fast rise in user and traffic capacity in mobile broadband communications. Therefore, different planar antennas with intelligent beamforming capability play an important role in these areas. The purpose of this book is to present the advanced technology, developments, and challenges in antennas for next-generation antenna communication systems. This book covers advances in next-generation antenna design and application domain in all related areas. It is a detailed overview of cutting-edge developments and other emerging topics and their applications in all areas of engineering that have achieved great accuracy and performance with the help of the advancement and challenges in next-generation antennas. This outstanding new volume: Covers all the latest developments and future aspects of antenna communication Is concisely written, lucid, and comprehensive, practical application-based, with many informative graphics and schematics Will help students, researchers, as well as systems designers to understand fundamental antenna design and wireless communication Compares different approaches in antenna design

Download or read book PBG based Terahertz Antenna for Aerospace Applications written by Balamati Choudhury and published by Springer. This book was released on 2015-09-23 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book focuses on high-gain antennas in the terahertz spectrum and their optimization. The terahertz spectrum is an unallocated EM spectrum, which is being explored for a number of applications, especially to meet increasing demands of high data rates for wireless space communications. Space communication systems using the terahertz spectrum can resolve the problems of limited bandwidth of present wireless communications without radio-frequency interference. This book describes design of such high-gain antennas and their performance enhancement using photonic band gap (PBG) substrates. Further, optimization of antenna models using evolutionary algorithm based computational engine has been included. The optimized high-performance compact antenna may be used for various wireless applications, such as inter-orbital communications and on-vehicle satellite communications.

Download or read book Wearable Antennas and Body Centric Communication written by Shiban Kishen Koul and published by Springer Nature. This book was released on 2021-09-18 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents state-of-the-art technologies, trends and applications with a focus on the healthcare domain for ultra-wideband (3.1–10.6 GHz) and 60 GHz (57–66 GHz) wireless communication systems. Due to various key features such as miniaturized antenna design, low power, high data rate, less effects on the human body, relatively less crowded spectrum, these technologies are becoming popular in various fields of biomedical applications and day-to-day life. The book highlights various aspects of these technologies related to body-centric communication, including antenna design requirements, channel modeling and characterization for WBANs, current fabrication and antenna design strategies for textile, flexible and implanted antennas. Apart from the general requirements and study related to these frequency bands, various application specific topics such as localization and tracking, physical activity recognition and assessment, vital sign monitoring and medical imaging are covered in detail. The book concludes with the glimpses of future aspects of the UWB and 60 GHz technology which includes IoT for healthcare and smart living, novel antenna materials and application of machine learning algorithms for overall performance enhancement.

Download or read book Multifunctional Antennas and Arrays for Wireless Communication Systems written by Satish K. Sharma and published by John Wiley & Sons. This book was released on 2021-05-04 with total page 466 pages. Available in PDF, EPUB and Kindle. Book excerpt: MULTIFUNCTIONAL ANTENNAS AND ARRAYS FOR WIRELESS COMMUNICATION SYSTEMS Offers an up-to-date discussion of multifunctional antennas and arrays for wireless communication systems Multifunctional Antennas and Arrays for Wireless Communication Systems is a comprehensive reference on state-of-the-art reconfigurable antennas and 4G/5G communication antennas. The book gives a unique perspective while giving a comprehensive overview of the following topics: Frequency reconfigurable antennas Pattern reconfigurable antennas Polarization reconfigurable antennas Reconfigurable antennas using Liquid Metal, Piezoelectric, and RF MEMS MIMO and 4G/5G wireless communication antennas Metamaterials and metasurfaces in reconfigurable antennas Multifunctional antennas for user equipments (UEs) Defense related antennas and applications Flat panel phased array antennas The book is a valuable resource for the practicing engineer as well as for those within the research field. As wireless communications continuously evolves, more and more functionally will be required, and thus multifunctional antennas and RF systems will be necessary. These multifunctional antennas will require a degree of reconfigurability, and this book discusses various methods which enable this. The main topics of frequency, pattern, and polarization reconfigurability is first discussed. Methods utilizing unique materials and devices, both real and artificial are discussed. The book also delves into 4G/5G antennas as it relates to MIMO, and millimeter-wave phased arrays. Finally, there is a section on defense related multifunctional RF antenna systems.

Download or read book Four Elements Compact MIMO Antenna with Reconfigurable Lower Band and Consistent High Band for Tablet Applications written by and published by . This book was released on 2017 with total page 161 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wireless communication systems in the modern world are bonded to everyone’s live in many circumstances every day. The number of times that one will encounter wireless devices has grown to be larger than the number of people on the planet. Therefore, the world’s demand on mobile systems, wireless devices, and electronics is creating a large market. Based on the raising communication network, more advanced technology is required to support higher data rate, faster speed, and wider coverage. New technologies will have no limit to continue growing and providing greater communication experience for users in the world. This thesis presents a body of work that designed active antenna system to work with the high data throughput wireless networks and reconfigurable resonance response to make this modern communication possible. Four elements antennas were designed as the objective of this thesis. Their development, fabrication, and analysis is presented in the thesis. Antenna design is built off a planar inverted F antenna (PIFA) with a combination of loop and monopole antenna. This antenna design was chosen for its near omnidirectional pattern, high efficiency, ease in tuning the resonances individually, low cost of fabrication, and dual-band nature. The four elements multiple inputs and multiple outputs (MIMO) is intended to cover all 4G/LTE, 3G, 2G operating in the 700-960 MHz and 1710-2690 MHz frequency bands by using four RF switches to make lower frequency band reconfigurable while maintaining the same matching performance for the higher frequency band. MIMO antenna systems use multiple antennas at the transmit and receive modes along with encoding and decoding algorithms in order to achieve high data rate connections while maintaining robust data links in complex urban environments. This thesis includes an introduction to MIMO system, important parameters used to describe MIMO system and shows the design simulation, and experimental measurement of these MIMO antennas. The MATLAB code for computing MIMO performance parameters has been developed. The MIMO parameters are envelope correlation coefficient (ECC), total active reflection coefficient (TARC), capacity loss, and mean effective gain (MEG). Comparison results for the antenna parameters between simulation and experimental measurement are included in the end.

Download or read book Progress in Compact Antennas written by Laure Huitema and published by BoD – Books on Demand. This book was released on 2014-09-10 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt: Compact antennas are a subject of growing interest from industry and scientific community to equip wireless communicating objects. The need for high performance small antennas and RF front ends is the challenge for future and next generation mobile devices. This book brings the body of knowledge on compact antennas into a single comprehensive volume. It is designed to meet the needs of electrical engineering and physics students to the senior undergraduate and beginning graduate levels, and those of practicing engineers.

Download or read book Antenna Design for 5G and Beyond written by Naser Ojaroudi Parch and published by Mdpi AG. This book was released on 2022-04-06 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt: With the rapid evolution of the wireless communications, fifth-generation (5G) communication has received much attention from both academia and industry, with many reported efforts and research outputs and significant improvements in different aspects, such as data rate speed and resolution, mobility, latency, etc. In some countries, the commercialization of 5G communication has already started as well as initial research of beyond technologies such as 6G.MIMO technology with multiple antennas is a promising technology to obtain the requirements of 5G/6G communications. It can significantly enhance the system capacity and resist multipath fading, and has become a hot spot in the field of wireless communications. This technology is a key component and probably the most established to truly reach the promised transfer data rates of future communication systems. In MIMO systems, multiple antennas are deployed at both the transmitter and receiver sides. The greater number of antennas can make the system more resistant to intentional jamming and interference. Massive MIMO with an especially high number of antennas can reduce energy consumption by targeting signals to individual users utilizing beamforming.Apart from sub-6 GHz frequency bands, 5G/6G devices are also expected to cover millimeter-wave (mmWave) and terahertz (THz) spectra. However, moving to higher bands will bring new challenges and will certainly require careful consideration of the antenna design for smart devices. Compact antennas arranged as conformal, planar, and linear arrays can be employed at different portions of base stations and user equipment to form phased arrays with high gain and directional radiation beams. The objective of this Special Issue is to cover all aspects of antenna designs used in existing or future wireless communication systems. The aim is to highlight recent advances, current trends, and possible future developments of 5G/6G antennas.

Download or read book Modeling of Compact Antennas for Wireless Communication in Complex Environment written by and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Low profile Compact and Broadband Antennas for HF VHF and UHF Applications written by Kasra Ghaemi and published by . This book was released on 2017 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation investigates the challenges in designing low-profile, compact and broadband antennas for HF, VHF, UHF applications and presents novel antenna solutions to address them. This thesis focuses on three major HF-UHF applications and proposes antenna solutions for them. The first application is ultra-wideband (UWB) antenna design for HF-UHF applications. This is mainly useful in military systems where the antenna should demonstrate monopole-like radiation characteristics and should be as small as possible specially having a low-profile antenna design is highly desired. The second part of the thesis focuses on applications where low-profile and compact antennas with directional radiation patterns are required. This application requires wide bandwidths to enable relatively high data rate and long-range communications, wideband jamming purposes, and to reduce the co-site interference between multiple antennas operating on frequency bands located near each other. The third application that this dissertation focuses on is small-aperture direction-finding (DF) systems for HF-UHF applications. The limited size of the antenna aperture inversely impacts the accuracy of the DF system and limits its bandwidth of operation. A novel broadband antenna solution is introduced to address such challenges. Finally, a possible future work that this thesis can be extended to further address the issue of size-performance tradeoff in antenna design for HF-UHF applications.

Download or read book Reconfigurable Active and Passive Planar Antennas for Wireless Communication Systems written by Shiban Kishen Koul and published by Springer Nature. This book was released on 2022-10-14 with total page 213 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Download or read book Ultra Wideband Wireless Communication written by Huseyin Arslan and published by John Wiley & Sons. This book was released on 2006-10-06 with total page 523 pages. Available in PDF, EPUB and Kindle. Book excerpt: ULTRA WIDEBAND WIRELESS COMMUNICATION AN INTERNATIONAL PANEL OF EXPERTS PROVIDE MAJOR RESEARCH ISSUES AND A SELF-CONTAINED, RAPID INTRODUCTION TO THE THEORY AND APPLICATION OF UWB This book delivers end-to-end coverage of recent advances in both the theory and practical design of ultra wideband (UWB) communication networks. Contributions offer a worldwide perspective on new and emerging applications, including WPAN, sensor and ad hoc networks, wireless telemetry, and telemedicine. The book explores issues related to the physical layer, medium access layer, and networking layer. Following an introductory chapter, the book explores three core areas: Analysis of physical layer and technology issues System design elements, including channel modeling, coexistence, and interference mitigation and control Review of MAC and network layer issues, up to the application Case studies present examples such as network and transceiver design, assisting the reader in understanding the application of theory to real-world tasks. Ultra Wideband Wireless Communication enables technical professionals, graduate students, engineers, scientists, and academic and professional researchers in mobile and wireless communications to become conversant with the latest theory and applications by offering a survey of all important topics in the field. It also serves as an advanced mathematical treatise; however, the book is organized to allow non-technical readers to bypass the mathematical treatments and still gain an excellent understanding of both theory and practice.

Download or read book HCTL Open International Journal of Technology Innovations and Research IJTIR written by Raj Gaurav Mishra and published by HCTL Open Publications Solutions, India. This book was released on 2013-03-31 with total page 145 pages. Available in PDF, EPUB and Kindle. Book excerpt: HCTL Open International Journal of Technology Innovations and Research (IJTIR) [ISSN (Online): 2321-1814] is an International, Open-Access, Peer-Reviewed, Online journal devoted to various disciplines of Science and Technology. HCTL Open IJTIR is a bi-monthly journal published by HCTL Open Publications Solutions, India and Hybrid Computing Technology Labs, India. - Get more information at: http://ijtir.hctl.org/

Download or read book Band Notch Characteristics in Ultra Wideband Antennas written by Taimoor Khan and published by CRC Press. This book was released on 2021-06-08 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book comprehensively reviews ultra-wideband (UWB) and UWB multi-input multi-output (MIMO) antennas with band-notched characteristics, with a focus on interference cancellation functionality. The book is organized into seven chapters that cover single band, dual band, and multi band-notched UWB antennas, followed by band-notched characteristics in UWB (MIMO) antennas. Further, it explains the mechanism of reconfigurability and tunability in band-notched UWB antennas, including advanced applications of UWB systems. Overall, it covers different techniques of canceling the electromagnetic interference in UWB in a concise volume. Features Provides a comprehensive presentation of avoiding interference in UWB systems Reviews state of the art literature related to UWB antennas, filtennas, and various reconfigurable technologies Explains different techniques for producing band-notch characteristics in UWB systems Includes discussion on historical perspectives of UWB technology Consolidates different research activities carried out on the electromagnetic interference cancellation techniques in the UWB communication systems Band-Notch Characteristics in Ultra-Wideband Antennas is aimed at researchers and graduate students in electrical and antenna engineering. Taimoor Khan has been an Assistant Professor at the Department of Electronics and Communication Engineering, National Institute of Technology Silchar since 2014. In addition to this, Dr. Khan has also worked as a Visiting Assistant Professor at Asian Institute of Technology Bangkok, Thailand during September–December, 2016. His active research interests include Printed Microwave Circuits, Electromagnetic Bandgap Structures, Ultra-wideband Antennas, Dielectric Resonator Antennas, Ambient Microwave Energy Harvesting, and Artificial Intelligence Paradigms in Electromagnetics. Dr. Khan has successfully guided three Ph.D. theses, and is supervising six Ph.D. students. He has published over 75 research articles in well-indexed journals and in world-renowned conference proceedings. Currently, he is executing three funded research projects, including two international collaborative SPARC and VAJRA research projects. In September 2020, Dr. Khan has been awarded a prestigious national IETE-Prof SVC Aiya Memorial Award for the year 2020. Yahia M. M. Antar has been a Professor at the Department of Electrical and Computer Engineering, Royal Military College of Canada since 1990. He served as the Chair of CNC, URSI from 1999 to 2008, Commission B from 1993 to 1999, and has a cross appointment at Queen’s University in Kingston. He has authored and co-authored over 250 journal papers, several books and chapters in books, over 500 refereed conference papers, holds several patents, has chaired several national and international conferences, and has given plenary talks at many conferences. Dr. Antar is a fellow of the Engineering Institute of Canada, the Electromagnetic Academy, and an International Union of Radio Science (URSI). He was elected by the URSI to the Board as the Vice President in 2008 and in 2014, and to the IEEE AP AdCom in 2009. In 2011, he was appointed as a member of the Canadian Defence Advisory Board (DAB) of the Canadian Department of National Defence. He serves as an Associate Editor for many IEEE and IET Journals, and as an IEEE-APS Distinguished Lecturer. Presently, he is working as President-Elect for IEEE Antenna and Propagation Society for the year 2020.