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Design And Optimization Of Photonics Based Beamforming Networks For Ultra Wide Mmwave Band Antenna Arrays
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Book Synopsis Design and Optimization of Photonics-Based Beamforming Networks for Ultra-Wide MmWave-Band Antenna Arrays by : Mikhail E. Belkin
Download or read book Design and Optimization of Photonics-Based Beamforming Networks for Ultra-Wide MmWave-Band Antenna Arrays written by Mikhail E. Belkin and published by . This book was released on 2020 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this chapter, we review the worldwide progress referred to designing optical beamforming networks intended to the next-generation ultra-wideband millimeter-wave phased array antennas for incoming fifth-generation wireless systems, which in recent years is under the close attention of worldwide communication community. Following the tendency, we study in detail the design concepts below true-time-delay photonics beamforming networks based on switchable or continuously tunable control. Guided by them, we highlight our NI AWRDE CAD-based simulation experiments in the frequency range of 57,Äì76¬†GHz on design of two 16-channel photonics beamforming networks using true-time-delay approach. In the first scheme of the known configuration, each channel includes laser, optical modulator, and 5-bit binary switchable chain of optical delay lines. The second scheme has an optimized configuration based on only 3-bit binary switchable chain of optical delay lines in each channel, all of which are driven by four lasers with wavelength division multiplexing and a common optical modulator. In the result, the novel structural and cost-efficient configuration of microwave-photonics beamforming network combining wavelength division multiplexing and true-time-delay techniques is proposed and investigated.
Book Synopsis Array Pattern Optimization by : Jafar Ramadhan Mohammed
Download or read book Array Pattern Optimization written by Jafar Ramadhan Mohammed and published by BoD – Books on Demand. This book was released on 2019-03-27 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt: Array pattern optimization is a very important and necessary issue in the majority of modern communication systems in a variety of applications such as sonar, radar, navigation, wireless communications, and many other engineering fields. Classical methods for array pattern synthesis have worked mainly with analytical models that are linear, local and, thus, their performances were not optimum. They have always been designed with closed-form mathematical models. Unlike these analytical methods, the global optimization methods with powerful computing tools offer optimum solutions. During the last few years, the design of the antenna arrays has been a topic of significant research activity. This book presents recent advances in the field of array pattern optimization. It is targeted primarily toward students and researchers who want to be exposed to a wide variety of antenna array design and optimization. It includes five chapters as well as the introductory chapter. These five chapters are categorized into five different areas depending on the application. These applications are ordered to address interference suppression, electronic toll collection, mmWave and ultra-wideband, integrated antennas, and educational packages for modeling smart antenna for 5G wireless communications. The book has the advantage of providing a collection of applications that are entirely independent and self-contained; thus, the interested reader can choose any chapter and skip to another without losing continuity.
Book Synopsis Design of Reconfigurable Multiple-Beam Array Feed Network Based on Millimeter-Wave Photonics Beamformers by : Dmitriy A. Fofanov
Download or read book Design of Reconfigurable Multiple-Beam Array Feed Network Based on Millimeter-Wave Photonics Beamformers written by Dmitriy A. Fofanov and published by . This book was released on 2019 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this chapter, elaborating the direction of designing photonics-based beamforming networks (BFN) for millimeter-wave (mmWave) antenna arrays, we review the worldwide progress referred to designing multiple-beam photonics BFN and highlight our last simulation results on design and optimization of millimeter-photonics-based matrix beamformers. In particular, we review the specialties of mmWave photonics technique in 5G mobile networks of Radio-over-Fiber (RoF) technology based on fiber-wireless architecture. In addition, the theoretical background of array antenna multiple-beam steering using ideal models of matrix-based phase shifters and time delay lines is presented including a general analysis of radiation pattern sensitivity to compare updated photonics beamforming networks produced on phase shifter or true-time delay approach. The principles and ways to optimized photonics BFN design are discussed based on the study of photonics BFN scheme including integrated 8√ó8 optical Butler matrix (OBM). All schemes are modeled using VPIphotonics Design Suite and MATLAB software tools. In the result of simulation experiments, the outcome is obtained that both the integrated optical Butler matrix itself and the BFN based on it possess an acceptable quality of beams formation in a particular 5G pico-cell.
Book Synopsis Advances in Array Optimization by : Ertugrul Aksoy
Download or read book Advances in Array Optimization written by Ertugrul Aksoy and published by BoD – Books on Demand. This book was released on 2020-03-04 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt: The need to develop technology and communication necessitates the design of flexible and high-capacity radiating systems in today's communication infrastructure. In this context, antenna arrays are the ideal solution and have been one of the priority research subjects of the science community dealing with electromagnetics from past to present. Optimization of an array may be performed in various ways such as the optimization of excitation, reflector structure, feed network, etc. depending on the array structure. This book is a collection of seven research studies focused on the optimization of array structures in classical phased array or time modulation, including radiator, reflector, feed network, and radiating element optimizations.
Book Synopsis Millimeter-Wave Networks by : Peng Yang
Download or read book Millimeter-Wave Networks written by Peng Yang and published by Springer Nature. This book was released on 2021-10-27 with total page 169 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a comprehensive review and in-depth study on efficient beamforming design and rigorous performance analysis in mmWave networks, covering beam alignment, beamforming training and beamforming-aided caching. Due to significant beam alignment latency between the transmitter and the receiver in existing mmWave systems, this book proposes a machine learning based beam alignment algorithm for mmWave networks to determine the optimal beam pair with a low latency. Then, to analyze and enhance the performance of beamforming training (BFT) protocol in 802.11ad mmWave networks, an analytical model is presented to evaluate the performance of BFT protocol and an enhancement scheme is proposed to improve its performance in high user density scenarios. Furthermore, it investigates the beamforming-aided caching problem in mmWave networks, and proposes a device-to-device assisted cooperative edge caching to alleviate backhaul congestion and reduce content retrieval delay. This book concludes with future research directions in the related fields of study. The presented beamforming designs and the corresponding research results covered in this book, provides valuable insights for practical mmWave network deployment and motivate new ideas for future mmWave networking. This book targets researchers working in the fields of mmWave networks, beamforming design, and resource management as well as graduate students studying the areas of electrical engineering, computing engineering and computer science. Professionals in industry who work in this field will find this book useful as a reference.
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.
Book Synopsis High Gain Broadband Mm-wave Antennas and Beamforming for Wireless Communication Systems by : Essa Mujammami
Download or read book High Gain Broadband Mm-wave Antennas and Beamforming for Wireless Communication Systems written by Essa Mujammami and published by . This book was released on 2021 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Generating multi-beams along with having broadband and beam steering capability in the mm-waves band are of crucial importance for diverse applications such as remote piloted vehicles, satellites, collision-avoidance radars, and ultra-wideband communications systems. Besides, the propagation environment at millimeter wave (mm-wave) frequencies-suggested for the next generation of wireless networks (5G)-lends itself to a beamforming structure wherein antenna arrays are required in order to obtain the necessary link budget and to overcome the associated strong attenuation. Therefore, the design of high gain antennas (to focus the directive beam to a user) and beamforming networks (to reduce interference) are essential and are needed to address many challenges associated with 5G wireless communications. This work addresses the design and development of high-performance Quasi-Yagi antenna and Rotman lens-based beamforming networks. Accordingly, several issues are addressed in this thesis. A Quasi-Yagi antenna with a perturbed dielectric lens that is broadband and has high gain is designed, optimized, fabricated and tested at 30 GHz. The antenna provides 95% aperture efficiency with a measured gain of 15 dBi as well as a radiation efficiency of ~90% at 30 GHz and a broadband (24-40 GHz) for |S_11 |
Book Synopsis Wideband Transmit and Receive Phased-Array Integrated Circuits and Systems for Multi-Standard Mm-Wave 5G Applications by : Abdulrahman Abdullah M. Alhamed
Download or read book Wideband Transmit and Receive Phased-Array Integrated Circuits and Systems for Multi-Standard Mm-Wave 5G Applications written by Abdulrahman Abdullah M. Alhamed and published by . This book was released on 2021 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt: The inevitable growth of mobile users and the proliferation of data-intensive applications are creating unprecedented challenges and opportunities. Therefore, the deployment of the fifth generation (5G) networks worldwide is accelerating to meet the increasing data-rate demands. Several mm-wave bands have been standardized as part of the 5G new radio frequency range 2 (NR FR2) at 24.25-52.4 GHz. The dissertation addresses the challenges of designing mm-waves ultra-wideband circuits and phased-array systems capable of operating at this widespread spectrum in advanced SiGe technology. The major contributions are the design of receive (Rx), transmit (Tx), and Tx/Rx beamformer chips and the implementation of multi-band 8×1 linear phased-array modules and large-scale 64-element phased array systems. The work in the 15-57 GHz Rx 4×1 beamformer culminated in the design and measurement of ultra-wide-band LNA, phase shifter, VGA, differential to single-ended stage and 4:1 on chip combining network with >40 GHz of bandwidth. Several circuit design techniques are introduced to break the gain-bandwidth (GBW) trade-offs in conventional beamformer designs. A peak electronic gain of 24-25 dB and a 4.7-6.2 dB noise figure is achieved with a 15-57 GHz record 3-dB bandwidth. The mm-wave multi-band transmit phased-array contributions focus on the design of 16-52 GHz 4×1 transmit beamformer chip. The Tx IC has four differential RF beamforming channels each with an active balun, vector modulator based phase shiftier, VGA, and a 2-stage class-AB power amplifier (PA). Circuit techniques employed in this work are selected to fulfill the power and bandwidth requirements with compact area utilization. An 8-element phased-array Tx module is demonstrated achieving broadband performance with +/- 60 degrees scanning capability. The work in the 64-element multi-band transmit and receive phased arrays employs the slat-array architecture using 16×1 linear arrays each has four 4×1 beamformer chips and end-fire tapered-slot antennas. Architecture and system analysis are presented to realize 16-52 GHz multi-standard operation. The 64-element Tx array achieves an EIRP of 50-51.7 dBm and 47.6-49 dBm at Psat and P1dB, respectively, at 24.5-48 GHz.
Download or read book Wideband Beamforming written by Wei Liu and published by Wiley. This book was released on 2010-03-18 with total page 302 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides an excellent reference for all professionals working in the area of array signal processing and its applications in wireless communications. Wideband beamforming has advanced with the increasing bandwidth in wireless communications and the development of ultra wideband (UWB) technology. In this book, the authors address the fundamentals and most recent developments in the field of wideband beamforming. The book provides a thorough coverage of the subject including major sub-areas such as sub-band adaptive beamforming, frequency invariant beamforming, blind wideband beamforming, beamforming without temporal processing, and beamforming for multi-path signals. Key Features: Unique book focusing on wideband beamforming Discusses a hot topic coinciding with the increasing bandwidth in wireless communications and the development of UWB technology Addresses the general concept of beamforming including fixed beamformers and adaptive beamformers Covers advanced topics including sub-band adaptive beamforming, frequency invariant beamforming, blind wideband beamforming, beamforming without temporal processing, and beamforming for multi-path signals Includes various design examples and corresponding complexity analyses This book provides a reference for engineers and researchers in wireless communications and signal processing fields. Postgraduate students studying signal processing will also find this book of interest.
Book Synopsis A Single-Print Additively-Manufactured Wideband Beamforming Network and Antenna Array by : Wenbo Liu
Download or read book A Single-Print Additively-Manufactured Wideband Beamforming Network and Antenna Array written by Wenbo Liu and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation seeks to demonstrate novel high-frequency electromagnetic (EM) beamforming networks enabled by using additive manufacturing (AM) and electroless metallization techniques. Specifically, the proposed goal of this work is to utilize the "design for additive manufacturing" (DfAM) philosophy to facilitate the morphological/topological development and miniaturization of a wideband beamforming network using these new fabrication techniques to achieve designs that would not be otherwise realizable using traditional fabrication techniques like machining and the use of printed circuit boards (PCBs). The demonstration vehicle for this dissertation begins with a millimeter-wave (mm-wave) filter to explain the advantage of curvilinear architecture with additive manufacturing. The additively manufactured couplers and crossovers based on the circular waveguide follow this. A compact Butler Matrix formed from circular and curvilinear waveguides, cavities, and tuning elements for mm-wave application is then provided. This work includes the analysis, design, fabrication, and experiment of couplers, crossovers, and phase shifters for a four-input, four-output (4x4) Butler Matrix. This Butler Matrix will serve as a beamforming network to steer a co-designed wideband antenna array. The scope of this includes mode transducers and custom thru-reflect-line (TRL) calibration components required for experiments. The first design adopts additive manufacturing techniques to implement a V-band (59-63 GHz) bandpass filter based on spherical resonators with elliptical waveguide feeds. Experiments were conducted on curvilinear architecture, which can mitigate corner radius effects in both electromagnetic performance and additive manufacturing processes compared with the traditional rectangular form. The second design exploits additive manufacturing capabilities based on a 3-dB hybrid directional coupler. The proposed structure with perturbations is engineered to operate in the ISM band from 57 to 64 GHz. The design can provide both 10 dB isolation and return loss and a 90° phase difference between the direct and coupled ports. The experience then extends to additively manufactured wideband and compact couplers and crossover with DfAM to enable mass production for constructing a large-scale beamforming network. The proposed structure can operate between 52 GHz and 65 GHz with a 22.2% fractional bandwidth (FBW). The topologies have good scalability, which can be easily shifted to different frequency bands. This operation range is wider than the FBW requirement for the WiGig band (21.9%). The frequency difference is due to the limitation in the resolution of the stereolithography (SLA) printer and the operation frequency range of the lab equipment. The final design follows the DfAM for electromagnetic by demonstrating the ability to develop compact and beamforming networks and a 4-element antenna array. A systematic approach is presented by engineering both planar and non-planar 4x4 Butler matrices for V-band operation. The resulting Butler matrix is then integrated with a 4-element array of horn antennas, which can eliminate the need for post-fabrication assembly. Results from the experiments and the full-wave simulations are provided for all designs.
Book Synopsis Subarray-Based Multibeam Antenna Frontend for Millimeter-Wave Hybrid Beamforming by : Nadeem Ashraf
Download or read book Subarray-Based Multibeam Antenna Frontend for Millimeter-Wave Hybrid Beamforming written by Nadeem Ashraf and published by . This book was released on 2021 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: With the paradigm shift from sub-6 GHz to millimeter-wave (mm-Wave) for wireless communications, beamforming becomes essential for mm-Wave access points to mitigate losses. Due to the small wavelength, a compact circuit could accommodate a large number of antenna elements. This favors the principle of beamforming to achieve high array-gain and spatial resolution through a large-scale N × M array. For such antenna frontends, full-digital beamforming circuitry requires N × M RF chains, which is unfeasible and energy inefficient. Likewise, a higher-order mm-Wave analog beamforming network is highly lossy to generate N × M beams. Hybrid beamforming addresses this dilemma by partitioning the beamforming between the analog and digital domains appropriately. For this purpose, the antenna frontend needs to be segmented into subarrays, such that the subarray-based analog beamspace patterns are digitally processed rather than processing element patterns individually. Thus, hybrid beamforming requires a suitable subarray-based N × M multibeam antenna frontend. In this thesis, a study of the subarray antennas is presented for hybrid beamforming operation. A simplified model is considered in which the analog beam-switching is performed in the azimuth plane (H-plane) and the digital beamspace beamforming in the elevation plane (V-plane). This is to reduce the number of RF chains as well as to achieve fine-tuned digital beam-steering in V-plane along with predefined analog switched-beams in H-plane. In this research work, the frequency band of 28 - 32 GHz is considered for prototyping purposes. For practical use at mm-Wave, the microstrip line technology is augmented with the perfect magnetic conductor (PMC) packaging. The fixed-beam and switched-beam subarrays with an order of n × m = 1 × 4, 2 × 2, and 4 × 4 are investigated. A dual-polarized aperture-coupled magneto-electric dipole antenna is designed as a single element with 20% bandwidth, ports' isolation better than 35 dB, cross-polarization less than -25 dB, and gain of 8 dBi. Using this element, a fixed-beam 4 × 4 dual-polarized subarray is designed that maintains a bandwidth of 16.7% at 30 GHz with a maximum gain of 19.3 dBi and symmetrical radiation patterns. The fixed-beam limitation of the 2n × 2m subarray leads to building the efficient switched-beam subarray antennas for hybrid beamforming. For this purpose, a 2 × 2 dual-polarized analog beamforming network is designed for 28-32 GHz. Two identical PMC packaged microstrip line networks, one for each polarization, are designed on a single substrate surface. However, to be processed for beamspace digital beamforming, this topology exhibits physical layout and array factor problems. Thus, further designs are investigated to meet the hybrid beamforming frontend requirements. To this end, as switched-beam subarrays for hybrid beamforming, two PMC packaged 4 × 4 Butler matrices are presented with a longitudinal layout and a folded layout for the end-fire and broadside radiation characteristics, respectively. The former design achieves a 5 GHz (28-33 GHz) bandwidth with return loss and isolation, both better than 15 dB. At 30 GHz, the insertion loss is 0.8 ± 0.3 dB, and antenna-ports' phase distributions are ±45° and ±135°. E-plane-flared horn antennas terminate the Butler matrix antenna-ports as a linear array. The double-ridge gap waveguide horn antenna is designed to reduce the scan loss within a subarray environment. The H-plane fan-beam switching covers ±42° with a maximum gain of 11.7 and 11.2 dBi for the inner (1R) and outer (2R) radiation beams. The latter novel topology of the folded Butler matrix is laid out for a compact tiled planar antenna frontend to accommodate a beamforming network beneath the antenna array's physical footprints. As compared to the conventional longitudinal layout, the size is reduced by more than 50 %. The PCB aperture-coupled antenna elements are integrated within the PMC packaged environment for a broadside radiation characteristic. The folded Butler matrix and antenna element are designed for a bandwidth of 4 GHz (28-32 GHz). The single antenna element's directivity is 5.22 dBi; whereas, for a 1 × 4 switched-beam subarray antenna, the directivities are 11.1 dBi and 10.6 dBi for 1R and 2R beams, respectively. Using Butler matrices-based 1 × 4 switched-beam subarrays, two types of multibeam antenna frontends with order N × M = 4 × 4 are constructed. Post-processing for the digital beamforming is applied over the subarray-based analog beamspaces. The first hybrid beamforming model maintains a scan range of ± 42o in the H-plane and ± 28o in the V-plane with BV × BH = 3 × 4 = 12 beams. Similarly, the second model maintains a scan range of ± 38o in the H-plane and ± 40o in the V-plane with BV × BH = 4 × 4 = 16 beams. As compared to full-analog two-dimensional (2-D) beamforming, these models are capable of fine-tuned beam-steering in the V-plane because the complex beamforming coefficients are not fixed but calculated digitally. Furthermore, compared to full-digital 2-D beamforming, it reduces the number of active RF chains from N × M to N.
Book Synopsis MmWave Beamforming Techniques for Future Wireless Communication Applications by : Oday Bshara
Download or read book MmWave Beamforming Techniques for Future Wireless Communication Applications written by Oday Bshara and published by . This book was released on 2021 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent years have witnessed an unprecedented growing demand on wireless data rates, which cannot be satisfied through traditional methods that increase the spectral efficiency of the available spectrum at sub-6GHz frequencies. Fortunately, the wide unlicensed swaths of the spectrum at millimeter-wave (mmWave) frequencies can solve the spectrum scarcity problem. However, mmWave frequencies have quasi-optical line of sight characteristics and high path loss propagation, making communication at extended ranges challenging. Adaptive steering of highly directional antenna beams can overcome the more significant path loss of signals at mmWave frequencies. Therefore, we present a novel 60GHz pattern reconfigurable antenna capable of steering its beams in both the azimuth and the elevation directions. The performance of this steerable antenna was evaluated via ray-tracing simulations of an urban city model. The proposed antenna outperforms a conventional omnidirectional antenna in terms of received power and delay spread characteristics. The narrow beams are a potential solution to the path loss, albeit they are vulnerable to the blockage that causes deep fading of the signal. Solving the indoor blockage problem is critical to effectively using the mmWave spectrum. Experimental results showed that switching to a wider beam with lower gain can partially restore or maintain a communicating link. Effective beam switching and coordinated beam steering can shorten deep fading, which is crucial for mmWave communication systems that are very susceptible to the spatial characteristics of the environment. Directional communication at mmWave frequencies requires the precise alignment of the transmitter and the receiver. Exhaustively scanning all directions to find the optimal link is a time-consuming process that renders directional communication impractical. Low latency beamforming using phased antenna arrays is the key to the practical deployment of the envisioned mmWave Gbps mobile networks. Thus, we used reconfigurable antennas in the sub-6GHz 5G new radio (NR) band to aid codebook-based beam selection in the mmWave band of the 5G-NR. We exploited the congruence between the spatial propagation signatures of signals at both mmWave and sub-6GHz frequencies to reduce the beam search space. The simulation results show a significant reduction in mmWave beam search overhead. We further introduced a novel direction of arrival (DoA) estimation technique using a single RF chain reconfigurable Alford loop antenna (RALA) at sub-6GHz frequencies to allow a rapid optimal beam selection process at mmWave frequencies. This thesis provides a measurement-based DoA estimation method, shows the reduced beam scanning overhead at mmWave frequencies, and designs an SDR-based test-bed for evaluating the proposed novel integrated system.
Book Synopsis THz Communications by : Thomas Kürner
Download or read book THz Communications written by Thomas Kürner and published by Springer Nature. This book was released on 2021-12-07 with total page 510 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book describes the fundamentals of THz communications, spanning the whole range of applications, propagation and channel models, RF transceiver technology, antennas, baseband techniques, and networking interfaces. The requested data rate in wireless communications will soon reach from 100 Gbit/s up to 1 Tbps necessitating systems with ultra-high bandwidths of several 10s of GHz which are available only above 200 GHz. In the last decade, research at these frequency bands has made significant progress, enabling mature experimental demonstrations of so-called THz communications, which are thus expected to play a vital role in future wireless networks. In addition to chapters by leading experts on the theory, modeling, and implementation of THz communication technology, the book also features the latest experimental results and addresses standardization and regulatory aspects. This book will be of interest to both academic researchers and engineers in the telecommunications industry.
Book Synopsis Beam Training Optimization for Millimeter Wave Communication by : Evan R. Ding
Download or read book Beam Training Optimization for Millimeter Wave Communication written by Evan R. Ding and published by . This book was released on 2018 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt: Millimeter wave (mmWave) technology has emerged as a promising solution to the spectrum demands of 5G networks. To achieve the necessary link budget for high throughput data transfer, mmWave links employ beamforming using antenna arrays with a large number of elements. However, this introduces the need for beam training, the process of finding beam alignments that can support a robust data link. Due to the dynamic nature of 5G environments, beam training must be conducted quickly since devices move in and out of communication range over short time scales. In this thesis, the optimization of beam training is explored within this context. Specifically, we derive a complexity bound for beam training in the limited scope of an idealized Boolean model, and a class of algorithms which achieve the bound is presented. The performance of these algorithms in non-ideal contexts are evaluated through simulation, and improvements over the existing IEEE 802.11ad standard are demonstrated.
Book Synopsis mm-Wave Silicon Technology by : Ali M. Niknejad
Download or read book mm-Wave Silicon Technology written by Ali M. Niknejad and published by Springer Science & Business Media. This book was released on 2008-01-03 with total page 313 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book compiles and presents the research results from the past five years in mm-wave Silicon circuits. This area has received a great deal of interest from the research community including several university and research groups. The book covers device modeling, circuit building blocks, phased array systems, and antennas and packaging. It focuses on the techniques that uniquely take advantage of the scale and integration offered by silicon based technologies.
Book Synopsis International Aerospace Abstracts by :
Download or read book International Aerospace Abstracts written by and published by . This book was released on 1999 with total page 1042 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Finite Antenna Arrays and FSS by : Ben A. Munk
Download or read book Finite Antenna Arrays and FSS written by Ben A. Munk and published by John Wiley & Sons. This book was released on 2003-07-22 with total page 394 pages. Available in PDF, EPUB and Kindle. Book excerpt: A periodic surface is an assembly of identical elements arranged in a one or two-dimensional array. Such surfaces have various effects on incident electromagnetic waves. Their applications range from antennas to stealth aircraft.This book discusses finite antenna arrays and how to minimize the radar cross section of these arrays. "Ben has been the world-wide guru of this technology...Ben Munk has written a book that represents the epitomy of practical understanding." W. Bahret, United States Air Force Frequency selective surfaces (FSSs) have important military and civilian applications including antenna theory, satellite communications and stealth technology Author is an authory on the subject, having been instrumental in the development of stealth technology for the US Air Force Much of the material in this book was deemed classified due to its importance to defence
