Antenna Array Processing in Wireless Communications and Radar Systems

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Publisher :
ISBN 13 :
Total Pages : 296 pages
Book Rating : 4.:/5 (469 download)

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Book Synopsis Antenna Array Processing in Wireless Communications and Radar Systems by : Xiaotong Lin

Download or read book Antenna Array Processing in Wireless Communications and Radar Systems written by Xiaotong Lin and published by . This book was released on 2000 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt: Antenna arrays have shown great promise for improving performance in wireless communication and radar systems. In this dissertation, new approaches and design algorithms are suggested for producing antenna array signal processing schemes that achieve improved performance. First, a modified space-time adaptive processing (STAP) scheme is proposed for airborne radar signal detection. A simple model for ground clutter is used to aid the estimation of the covariance matrix in a nonhomogeneous environment. The resulting algorithm provides good performance without much training data. Next, distributed detection of a known signal in t-distributed noise is studied for cases where the observations are correlated from sensor to sensor. A Gauss-Seidel algorithm which attempts to minimize the Bayes risk is used to obtain the optimum decision rules. It is shown that the optimum sensor decision rules can be predicted in a simple way based on the problem's parameters. Finally the exploitation of transmit diversity and receive diversity in wireless communications is considered by using space-time codes. Systematic code search procedures with low complexity are proposed for space-time codes employing multiple trellis coded modulation (MTCM). MTCM is shown to be necessary for achieving maximum transmit diversity gain when trellis codes with parallel paths are used. By properly labeling the trellis branches, it is demonstrated that the overall coding gain can be made larger than that achieved by conventional space-time codes with the same throughput and the same number of states. A new family of space-time codes is proposed using a serial concatenation structure. An interleaver is embedded between the inner code and the outer code. Analysis shows that by using this structure, both diversity gain and interleaving gain can be achieved for system performance improvement.

Adaptive Antennas and Phased Arrays for Radar and Communications

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Author :
Publisher : Artech House
ISBN 13 : 1596932732
Total Pages : 410 pages
Book Rating : 4.5/5 (969 download)

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Book Synopsis Adaptive Antennas and Phased Arrays for Radar and Communications by : Alan J. Fenn

Download or read book Adaptive Antennas and Phased Arrays for Radar and Communications written by Alan J. Fenn and published by Artech House. This book was released on 2007-12-01 with total page 410 pages. Available in PDF, EPUB and Kindle. Book excerpt: Based on the author's extensive research at MIT Lincoln Laboratory, this authoritative resource offers an in-depth description of adaptive array design, emphasizing the RF characteristics, mutual coupling among elements, and field testing methods. It provides you with proven techniques for challenging projects involving radar, communication systems and antenna design. For the first time in any book, you find design guidance on specialized types of arrays, using monopole radiating elements, slotted cylinders and ultrawideband dipoles. Moreover, this unique book presents a focused near-field technique that quantifies the far-field performance of large aperture radar systems and communication systems. The book presents example prototype phased array antennas, including discussions on monopole phased arrays, finite and infinite array analyses, measurements for planar arrays of monopole elements. Further, you get a detailed explanation of focused near-field polarization characteristics of monopole arrays as related to adaptive array testing in the near field. From the fundamentals of adaptive antennas and degrees of freedom for multiple beam antennas and phased arrays… to a test bed monopole phased array and the planar near field testing technique… to arrays of horizontally polarized loop-fed slotted cylinder antennas and ultrawideband dipole arrays, this comprehensive book offers you invaluable, hands-on knowledge for your work in the field.

Smart Antennas

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Publisher : Institute of Electrical & Electronics Engineers(IEEE)
ISBN 13 :
Total Pages : 568 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Smart Antennas by : Theodore S. Rappaport

Download or read book Smart Antennas written by Theodore S. Rappaport and published by Institute of Electrical & Electronics Engineers(IEEE). This book was released on 1998 with total page 568 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this compendium, you will find some of the classical publications and most promising research papers which have and will continue to impact the emerging field of wireless adaptive arrays. The papers have been compiled based on graduate student research at the Mobile and Portable Radio Research Group (MPRG) at Virginia Tech. This book is a handy, single-source reference to assist graduate students, researchers, and practitioners involved with the design, development, and deployment of smart antenna technology.

Adaptive Array Systems

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Publisher : John Wiley & Sons
ISBN 13 : 0470861908
Total Pages : 290 pages
Book Rating : 4.4/5 (78 download)

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Book Synopsis Adaptive Array Systems by : Ben Allen

Download or read book Adaptive Array Systems written by Ben Allen and published by John Wiley & Sons. This book was released on 2006-02-03 with total page 290 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the last fifty years, extensive studies have been carried out worldwide in the field of adaptive array systems. However, far from being a mature technology with little research left to tackle, there is seemingly unlimited scope to develop the fundamental characteristics and applications of adaptive antennas for future 3G and 4G mobile communications systems, ultra wideband wireless and satellite and navigation systems, and this informative text shows you how! Provides an accessible resource on adaptive array fundamentals as well as coverage of adaptive algorithms and advanced topics Analyses the performance of various wideband beamforming techniques in wideband array processing Comprehensively covers implementation issues related to such elements as circular arrays, channel modelling and transmit beam forming, highlighting the challenges facing a designer during the development phase Supports practical implementation considerations with detailed case studies on wideband arrays, radar, sonar and biomedical imaging, terrestrial wireless systems and satellite communication systems Includes examples and problems throughout to aid understanding Companion website features Solutions Manual, Matlab Programs and Electronic versions of some figures Adaptive Array Systems is essential reading for senior undergraduate and postgraduate students and researchers in the field of adaptive array systems. It will also have instant appeal to engineers and designers in industry engaged in developing and deploying the technology. This volume will also be invaluable to those working in radar, sonar and bio-medical applications.

Adaptive Antenna Arrays

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Publisher : Springer Science & Business Media
ISBN 13 : 3662055929
Total Pages : 662 pages
Book Rating : 4.6/5 (62 download)

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Book Synopsis Adaptive Antenna Arrays by : Sathish Chandran

Download or read book Adaptive Antenna Arrays written by Sathish Chandran and published by Springer Science & Business Media. This book was released on 2013-03-09 with total page 662 pages. Available in PDF, EPUB and Kindle. Book excerpt: This compilation of the works and insights of various key scientists and engineers in this area addresses the current and future trends of scenarios for employing adaptive antenna arrays in communication systems. Ideal as a quick reference for engineers, researchers, advanced undergraduate and postgraduate students.

Radar Array Processing

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Publisher : Springer Science & Business Media
ISBN 13 : 3642773478
Total Pages : 326 pages
Book Rating : 4.6/5 (427 download)

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Book Synopsis Radar Array Processing by : Simon Haykin

Download or read book Radar Array Processing written by Simon Haykin and published by Springer Science & Business Media. This book was released on 2013-03-08 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt: Radar Array Processing presents modern techniques and methods for processingradar signals received by an array of antenna elements. With the recent rapid growth of the technology of hardware for digital signal processing, itis now possible to apply this to radar signals and thus to enlist the full power of sophisticated computational algorithms. Topics covered in detail here include: super-resolution methods of array signal processing as applied to radar, adaptive beam forming for radar, and radar imaging. This book will be of interest to researchers and studentsin the radar community and also in related fields such as sonar, seismology, acoustics and radio astronomy.

Antenna and Array Technologies for Future Wireless Ecosystems

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Publisher : John Wiley & Sons
ISBN 13 : 1119813905
Total Pages : 795 pages
Book Rating : 4.1/5 (198 download)

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Book Synopsis Antenna and Array Technologies for Future Wireless Ecosystems by : Yingjie Jay Guo

Download or read book Antenna and Array Technologies for Future Wireless Ecosystems written by Yingjie Jay Guo and published by John Wiley & Sons. This book was released on 2022-07-20 with total page 795 pages. Available in PDF, EPUB and Kindle. Book excerpt: ANTENNA AND ARRAY TECHNOLOGIES FOR FUTURE WIRELESS ECOSYSTEMS Discover a timely and accessible resource on the latest antenna research driving new developments in the field In Antenna and Array Technologies for Future Wireless Ecosystems, distinguished academics and authors Drs. Y. Jay Guo and Richard W. Ziolkowski deliver a cutting-edge resource for researchers, academics, students, and engineers who need the latest research findings on the newest challenges facing antenna designers who will be creating the technology that drives future 6G and beyond wireless systems and networks. This timely and impactful book offers the fundamental knowledge that will facilitate new research activities in the antennas and applied electromagnetics communities, and conveys innovative and practical solutions to many wireless industry problems. Its international cohort of leading authors delivers their findings on a variety of advanced topics in antenna and array research, including metasurface antennas; electrically small directive antennas; RF, millimeter-wave and THz antennas and arrays; atom-based sensors, and arrays of quantum emitters. The book also includes resources that cover the important topics: A thorough introduction to various intelligent and low-cost beam scanning, beamforming and beam-reconfigurable array technologies to support dynamic networking of future systems An exploration of advanced techniques for analyzing large arrays, as well as an examination of advanced antenna-in-package technologies for future mm-wave systems Discussions of the latest research on electrically small and extremely large hybrid antenna arrays, and photonic beamforming networks to address spectrum scarcity in future systems Low form-factor, low energy-consumption, and wireless power transfer antennas for the Internet of Things (IoT) This book is the companion of the Wiley book by the same authors, Advanced Antenna Array Engineering for 6G and Beyond Wireless Communications. Perfect for antenna engineers in academia and industry, Antenna and Array Technologies for Future Wireless Ecosystems will also be an essential resource in the libraries of senior undergraduate and graduate students studying antenna engineering applied electromagnetics and seeking a one-stop reference for state-of-the-art global antenna and antenna array research activities.

Compact Slot Array Antennas for Wireless Communications

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Publisher : Springer
ISBN 13 : 3030017532
Total Pages : 372 pages
Book Rating : 4.0/5 (3 download)

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Book Synopsis Compact Slot Array Antennas for Wireless Communications by : Alan J. Sangster

Download or read book Compact Slot Array Antennas for Wireless Communications written by Alan J. Sangster and published by Springer. This book was released on 2018-11-11 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Smart Antennas and Electromagnetic Signal Processing in Advanced Wireless Technology

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Publisher : CRC Press
ISBN 13 : 100079377X
Total Pages : 450 pages
Book Rating : 4.0/5 (7 download)

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Book Synopsis Smart Antennas and Electromagnetic Signal Processing in Advanced Wireless Technology by : Paul R.P. Hoole

Download or read book Smart Antennas and Electromagnetic Signal Processing in Advanced Wireless Technology written by Paul R.P. Hoole and published by CRC Press. This book was released on 2022-09-01 with total page 450 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book addresses the current demand for a scientific approach to advanced wireless technology and its future developments. It gives a clear presentation of both antennas and adaptive signal processing which is what makes antennas powerful, maneuverable and necessary for advanced wireless technology. The book presents electromagnetic signal processing techniques that both control the antenna beam and track the moving station, which is required for effective, fast, dynamic beamforming. The first part of the book presents a comprehensive description and analysis of basic antenna theory, starting from short dipole antennas to array antennas. This section also includes important concepts related to antenna parameters, electromagnetic wave propagation, the Friis equation, the radar equation and wave reflection and transmission through media. The second part of the book focuses on smart antennas, commencing from a look at the traditional approach to beamforming before getting into the details of smart antennas. Complete derivation and description of the techniques for electromagnetic field signal processing techniques for adaptive beamforming are also presented. Artificial Intelligence (AI) driven beamforming is presented using computationally fast and low-memory demanding technique for AI beamforming is presented with the different excitation functions available. A novel method for fast, low memory and accurate, maneuverable single beam generation is presented, as well as other methods for beamforming with fewer elements along with a simple method for tracking the mobile antenna and station. In this section, for completeness, the use of antenna signal processing for synthetic aperture techniques for imaging is also presented, specifically the Inverse Synthetic Aperture Imaging technique. The third part of the book presents technological aspects of advanced wireless technology, including the 5G wireless system and the various devices needed to construct it. While the books’ main emphasis is theoretical understanding and design, it includes applications, and legal matters are also presented.

Antenna Arrays

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Publisher : John Wiley & Sons
ISBN 13 : 9780470937433
Total Pages : 534 pages
Book Rating : 4.9/5 (374 download)

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Book Synopsis Antenna Arrays by : Randy L. Haupt

Download or read book Antenna Arrays written by Randy L. Haupt and published by John Wiley & Sons. This book was released on 2010-09-09 with total page 534 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive tutorial on the design and practical applications of antenna arrays An antenna array is an assembly of antenna elements that maximizes a received or transmitted signal in a desired direction. This practical book covers a wide range of antenna array topics that are becoming increasingly important in wireless applications, with emphasis on array design, applications, and computer modeling. Each chapter in Antenna Arrays builds upon the previous chapter, progressively addressing more difficult material. Beginning with basic electromagnetics/antennas/antenna systems information, the book then deals with the analysis and synthesis of arrays of point sources and their associated array factors. It presents a sampling of different antenna elements that replace these point sources, then presents element configurations that do not have to lie along a line or in a plane. The complex and difficult-to-predict interactions of elements and electromagnetic waves are introduced, along with computer modeling and experiments that are necessary for predicting the performance of arrays where mutual coupling is important. Then, various approaches to getting signals to and from the array elements to a computer where the signal detection takes place are explored, as are the numerical techniques behind smart antennas. The book emphasizes the computational methods used in the design and analysis of array antennas. Also featured are signal processing and numerical modeling algorithms, as well as pictures of antenna arrays and components provided by industry and government sources, with explanations of how they operate. Fully course-tested, Antenna Arrays serves as a complete text in phased array design and theory for advanced undergraduate- and graduate-level courses in electronics and communications, as well as a reference for practicing engineers and scientists in wireless communications, radar, and remote sensing.

Advanced Antenna Array Engineering for 6G and Beyond Wireless Communications

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Publisher : John Wiley & Sons
ISBN 13 : 1119712904
Total Pages : 338 pages
Book Rating : 4.1/5 (197 download)

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Book Synopsis Advanced Antenna Array Engineering for 6G and Beyond Wireless Communications by : Yingjie Jay Guo

Download or read book Advanced Antenna Array Engineering for 6G and Beyond Wireless Communications written by Yingjie Jay Guo and published by John Wiley & Sons. This book was released on 2021-10-26 with total page 338 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advanced Antenna Array Engineering for 6G and Beyond Wireless Communications Reviews advances in the design and deployment of antenna arrays for future generations of wireless communication systems, offering new solutions for the telecommunications industry Advanced Antenna Array Engineering for 6G and Beyond Wireless Communications addresses the challenges in designing and deploying antennas and antenna arrays which deliver 6G and beyond performance with high energy efficiency and possess the capability of being immune to interference caused by different systems mounted on the same platforms. This timely and authoritative volume presents innovative solutions for developing integrated communications networks of high-gain, individually-scannable, multi-beam antennas that are reconfigurable and conformable to all platforms, thus enabling the evolving integrated land, air and space communications networks. The text begins with an up-to-date discussion of the engineering issues facing future wireless communications systems, followed by a detailed discussion of different beamforming networks for multi-beam antennas. Subsequent chapters address problems of 4G/5G antenna collocation, discuss differentially-fed antenna arrays, explore conformal transmit arrays for airborne platforms, and present latest results on fixed frequency beam scanning leaky wave antennas as well as various analogue beam synthesizing strategies. Based primarily on the authors’ extensive work in the field, including original research never before published, this important new volume: Reviews multi-beam feed networks, array decoupling and de-scattering methods Provides a systematic study on differentially fed antenna arrays that are resistant to interference caused by future multifunctional/multi-generation systems Features previously unpublished material on conformal transmit arrays based on Huygen’s metasufaces and reconfigurable leaky wave antennas Includes novel algorithms for synthesizing and optimizing thinned massive arrays, conformal arrays, frequency invariant arrays, and other future arrays Advanced Antenna Array Engineering for 6G and Beyond Wireless Communications is an invaluable resource for antenna engineers and researchers, as well as graduate and senior undergraduate students in the field.

Radar and RF Front End System Designs for Wireless Systems

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Author :
Publisher : IGI Global
ISBN 13 :
Total Pages : 377 pages
Book Rating : 4.3/5 (693 download)

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Book Synopsis Radar and RF Front End System Designs for Wireless Systems by : Mehta, Shilpa

Download or read book Radar and RF Front End System Designs for Wireless Systems written by Mehta, Shilpa and published by IGI Global. This book was released on 2024-04-15 with total page 377 pages. Available in PDF, EPUB and Kindle. Book excerpt: The escalating demand for advanced communication, sensing, and scanning systems across various applications as well as the urgency to comprehend the complexities of RF Frontend systems is more pronounced than ever. At the heart of this challenge lies the reconfigurability feature, playing a vital role in shaping the current trajectory of wireless technologies. The book Radar and RF Front End System Designs for Wireless Systems delves straight into this pressing issue and examines the relentless pace of innovation spurred by a myriad of configuration and design architectures. While these advancements hold great promise, they also introduce challenges that warrant thorough examination. Within the pages of this publication, a narrative unfolds that transcends theoretical discourse. The book offers a unique opportunity for academic scholars, researchers, and industry professionals to not only understand the intricacies of RF Frontend systems but also to grapple with the practical challenges posed by their rapid evolution. It becomes a guide in navigating this dynamic landscape, providing a deep exploration of the issues at hand and paving the way for informed solutions and breakthroughs.

Smart Antennas

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Publisher : John Wiley & Sons
ISBN 13 : 0471721239
Total Pages : 473 pages
Book Rating : 4.4/5 (717 download)

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Book Synopsis Smart Antennas by : T. K. Sarkar

Download or read book Smart Antennas written by T. K. Sarkar and published by John Wiley & Sons. This book was released on 2005-03-04 with total page 473 pages. Available in PDF, EPUB and Kindle. Book excerpt: A valuable addition to the Wiley Series in Microwave and Optical Engineering Today's modern wireless mobile communications depend on adaptive "smart" antennas to provide maximum range and clarity. With the recent explosive growth of wireless applications, smart antenna technology has achieved widespread commercial and military applications. The only book available on the topic of adaptive antennas using digital technology, this text reflects the latest developments in smart antenna technology and offers timely information on fundamentals, as well as new adaptive techniques developed by the authors. Coupling electromagnetic aspects of antenna design with signal processing techniques designed to promote accurate and efficient information exchange, the text presents various mechanisms for characterizing signal-path loss associated with signal propagation, particularly for mobile wireless communications systems based on such techniques as joint space-frequency adaptive processing. In clear, accessible language, the authors: * explain the difference between adaptive antennas and adaptive signal processing * Illustrate the procedures for adaptive processing using directive elements in a conformal array * clarify multistage analysis procedure which combines electromagnetic analysis with signal processing * present a survey of the various models for characterizing radio wave propagation in urban and rural environments * describe a method wherein it is possible to identify and eliminate multipath without spatial diversity * optimize the location of base stations in a complex environment The text is an excellent resource for researchers and engineers working in electromagnetics and signal processing who deal with performance improvement of adaptive techniques, as well as those who are concerned with the characterization of propagation channels and applications of airborne phased arrays.

Signal Processing in MATLAB. Design and Simulate Phased Array Signal Processing Systems

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Publisher : Createspace Independent Publishing Platform
ISBN 13 : 9781983406058
Total Pages : 288 pages
Book Rating : 4.4/5 (6 download)

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Book Synopsis Signal Processing in MATLAB. Design and Simulate Phased Array Signal Processing Systems by : A. Smith

Download or read book Signal Processing in MATLAB. Design and Simulate Phased Array Signal Processing Systems written by A. Smith and published by Createspace Independent Publishing Platform. This book was released on 2017-12-29 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt: Phased Array System Toolbox provides algorithms and apps for the design, simulation, and analysis of sensor array systems in radar, wireless communications, sonar, and medical imaging applications. You can design end-to-end phased array systems and analyze their performance under different scenarios using synthetic or acquired data. Toolbox apps let you explore the characteristics of sensor arrays and waveforms and perform link budget analysis. In-product examples provide a starting point for implementing a full range of custom phased array systems. For radar and sonar system design, the toolbox lets you model the dynamics of ground-based, airborne, ship-borne, or submarine multifunction systems with moving targets and platforms. It includes pulsed and continuous waveforms and signal processing algorithms for beamforming, matched filtering, direction of arrival (DOA) estimation, and target detection. The toolbox also includes models for transmitters and receivers, propagation channels, targets, jammers, and clutter. For 5G, LTE, and WLAN wireless communications system design, the toolbox enables you to incorporate antenna arrays and beamforming algorithms into system-level simulation models. It includes capabilities for designing and analyzing array geometries and subarray configurations, and provides array processing algorithms for beamforming and DOA estimation. Toolbox algorithms are available as MATLAB System objects and Simulink blocks.

Adaptive Antenna Array Beamforming and Power Management with Antenna Element Selection

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Publisher :
ISBN 13 :
Total Pages : 170 pages
Book Rating : 4.:/5 (973 download)

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Book Synopsis Adaptive Antenna Array Beamforming and Power Management with Antenna Element Selection by : Sajjad Abazari Aghdam

Download or read book Adaptive Antenna Array Beamforming and Power Management with Antenna Element Selection written by Sajjad Abazari Aghdam and published by . This book was released on 2016 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt: This research is the array processing help wireless communication techniques to increase the signal accuracy. This technique has an important part of prevalent applications. The wireless communication system, radar, and sonar. Beamforming is one of methods in array processing that filters signals based on their capture time at each element in an array of antennas spatially. Numerous studies in adaptive array processing have been proposed in the last several decades, which are divided in two parts. The first one related to non-adaptive beamforming techniques and the next one related to digitally adaptive Beamforming methods. The trade-off between computational complexity and performance make them different. In this thesis, we concentrate on the expansion of array processing algorithms in both non-adaptive and adaptive ones with application of beamforming in 4G mobile antenna and radar systems. The conventional and generalized side-lobe canceller (GSC) structures beamforming algorithms were employed with a phase array antenna that changed the phase of arrivals in array antenna with common phased array structure antennas. An eight-element uniform linear array (ULA), consisting of di-pole antennas, represented as the antenna array. An anechoic chamber measures the operation of beamforming algorithms performance. An extended modified Kaiser weighting function is proposed to make a semi-adaptive structure in phased array beamforming. This technique is extended to low complexity functions like hyperbolic cosine and exponential functions. Furthermore, these algorithms are used in GSC beamforming. The side-lobe levels were so lower than other algorithms in conventional beamforming around -10 dB. On the other hand, a uniform linear arrays for smart antenna purposes designed to utilize in implementing and testing the proposed algorithms. In this thesis, performance of smart antenna with rectangular aperture coupled microstrip linear array which experimental investigations carried out for obtaining X-band operation of rectangular microstrip antenna by using aperture coupled feeding technique. Frequency range set at approximately 8.6 to 10.9 GHz, by incorporating frequency range of the antenna resonates for single wideband with an impedance bandwidth of 23%. The enhancement of impedance bandwidth and gain does not affect the nature of broadside radiation characteristics. This thesis describes the design, operation, and realization of the beamforming such as Sidelobe level (SLL) control and null forming array antenna are examined with the prototype. An antenna radiation pattern beam maximum can be simultaneously placed towards the intended user or Signal of interest (SOl), and, ideally nulls can be positioned towards directions of interfering signals or signals not of interest (SNOIs). Finally, we focused on the adaptive digitally algorithms in compact antenna that faces with mutual coupling. The variable step-size normalized lease mean square (VS-NLMS) algorithm is implemented in beamforming. This algorithm utilizes continuous adaptation. The weights are attuned that the final weight vector to the most satisfied result. The gradient vector can be achieved by iterative beamforming algorithm from the available data. This algorithm is compared with LMS, NLMS, VSS-NLMS algorithms, it is determined that the VSS-NLMS algorithm is better performance to other algorithms. Finally, we introduced novel adaptive IP-NNLMS beamformer. This beamformer reaches to faster convergence and lower error floor than the previous adaptive beamformers even at low SNRs in presence of mutual coupling. The experimental results verified the simulation results that the proposed technique has better performance than other algorithms in various situations.

Adaptive Antennas for Wireless Communications

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Author :
Publisher : Wiley-IEEE Press
ISBN 13 :
Total Pages : 788 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Adaptive Antennas for Wireless Communications by : George V. Tsoulos

Download or read book Adaptive Antennas for Wireless Communications written by George V. Tsoulos and published by Wiley-IEEE Press. This book was released on 2001-01-15 with total page 788 pages. Available in PDF, EPUB and Kindle. Book excerpt: Electrical Engineering Adaptive Antennas for Wireless Communications In the past decade, the wireless communications community recognized adaptive antennas as a core technology that would help existing systems overcome problems related to spectrum efficiency and provide a vehicle to achieve the ambitious requirements of next-generation networks. The communications industry has already begun to develop adaptive antenna systems for commercial use and at the same time is working with standardization institutes around the world to produce adaptive antenna-friendly standards. Adaptive Antennas for Wireless Communications is a concise, detailed resource of information for all critical issues related to this technology and is compiled from the original published work of experts in the field. The extensive literature covers: * Historical and background aspects * Radio channel simulation techniques and characteristics * Adaptive algorithm performance under a variety of conditions * Adaptive antenna performance in different operational environments * Design and implementation issues * Experimental results * Other issues such as network planning and recent novel techniques Adaptive Antennas for Wireless Communications is a valuable reference for helping consultants, researchers, communications professionals, academics, and students gain an in-depth understanding of adaptive antenna technology.

Substrate-Integrated Millimeter-Wave Antennas for Next-Generation Communication and Radar Systems

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Author :
Publisher : John Wiley & Sons
ISBN 13 : 1119611156
Total Pages : 322 pages
Book Rating : 4.1/5 (196 download)

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Book Synopsis Substrate-Integrated Millimeter-Wave Antennas for Next-Generation Communication and Radar Systems by : Zhi Ning Chen

Download or read book Substrate-Integrated Millimeter-Wave Antennas for Next-Generation Communication and Radar Systems written by Zhi Ning Chen and published by John Wiley & Sons. This book was released on 2021-04-29 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt: Substrate-Integrated Millimeter-Wave Antennas for Next-Generation Communication and Radar Systems The first and only comprehensive text on substrate-integrated mmW antenna technology, state-of-the-art antenna design, and emerging wireless applications Substrate-Integrated Millimeter-Wave Antennas for Next-Generation Communication and Radar Systems elaborates the most important topics related to revolutionary millimeter-wave (mmW) technology. Following a clear description of fundamental concepts including substrate-integrated waveguides and loss analysis, the text treats key design methods, prototyping techniques, and experimental setup and testing. The authors also highlight applications of mmW antennas in 5G wireless communication and next-generation radar systems. Readers are prepared to put techniques into practice through practical discussions of how to set up testing for impedance matching, radiation patterns, gain from 24GHz up to 325 GHz, and more. This book will bring readers state-of-the-art designs and recent progress in substrate-integrated mmW antennas for emerging wireless applications. Substrate-Integrated Millimeter-Wave Antennas for Next-Generation Communication and Radar Systems is the first comprehensive text on the topic, allowing readers to quickly master mmW technology. This book: Introduces basic concepts such as metamaterials Huygens's surface, zero-index structures, and pattern synthesis Describes prototyping in the form of fabrication based on printed-circuit-board, low-temperature-co-fired-ceramic and micromachining Explores applications for next-generation radar and imaging systems such as 24-GHz and 77-GHz vehicular radar systems Elaborates design methods including waveguide-based feeding network, three-dimensional feeding structure, dielectric loaded aperture antenna element, and low-sidelobe synthesis The mmW is one of today’s most important emerging technologies. This book provides graduate students, researchers, and engineers with the knowledge they need to deploy mmW systems and develop new antenna designs with low cost, low loss, and low complexity.