Integrated 60GHz RF Beamforming in CMOS PDF Download

Author: Yikun Yu
Publisher: Springer Science & Business Media
ISBN: 9400706626
Category : Technology & Engineering
Languages : en
Pages : 123

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Book Description
Integrated 60GHz RF Beamforming in CMOS describes new concepts and design techniques that can be used for 60GHz phased array systems. First, general trends and challenges in low-cost high data-rate 60GHz wireless system are studied, and the phased array technique is introduced to improve the system performance. Second, the system requirements of phase shifters are analyzed, and different phased array architectures are compared. Third, the design and implementation of 60GHz passive and active phase shifters in a CMOS technology are presented. Fourth, the integration of 60GHz phase shifters with other key building blocks such as low noise amplifiers and power amplifiers are described in detail. Finally, this book describes the integration of a 60GHz CMOS amplifier and an antenna in a printed circuit-board (PCB) package.

Author: Dixian Zhao
Publisher: Springer
ISBN: 3319188399
Category : Technology & Engineering
Languages : en
Pages : 188

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Book Description
This book focuses on the development of design techniques and methodologies for 60-GHz and E-band power amplifiers and transmitters at device, circuit and layout levels. The authors show the recent development of millimeter-wave design techniques, especially of power amplifiers and transmitters, and presents novel design concepts, such as “power transistor layout” and “4-way parallel-series power combiner”, that can enhance the output power and efficiency of power amplifiers in a compact silicon area. Five state-of-the-art 60-GHz and E-band designs with measured results are demonstrated to prove the effectiveness of the design concepts and hands-on methodologies presented. This book serves as a valuable reference for circuit designers to develop millimeter-wave building blocks for future 5G applications.

Author: Saihua Lin
Publisher:
ISBN:
Category :
Languages : en
Pages :

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Book Description
Mm-wave technology is attractive for non-destructive high resolution imaging, high data rate communication, and automobile radar applications. For example, the large available bandwidth at the unlicensed 60 GHz band can potentially support up to 7 Gb/s in IEEE 802.11ad. However, one fundamental problem in mm-wave technology is the high signal path loss. Multiple-antenna arrays can be exploited to compensate for this drawback. Since CMOS technology has evolved to a stage where its performance is comparable to the traditional III-V compound semiconductor counterpart, low cost, lower power design and integration of an mm-wave wireless circuit in CMOS technology has become feasible. In this work, we first characterize the on-chip passive elements and active elements in a 65-nm CMOS technology. Slotted ground CPW and MSL lines are proposed which provide high Q ($> 20$) performance or flexible design capabilities. Two low noise amplifiers (LNA) with and without cascode devices are implemented and compared. The LNA without the cascode device turns out to be a better option. It is shown that the cascode device will degrade noise figure, bandwith, and linearity. The noise figure without the cascode device is only 3.8 dB with 16.2 dB gain at 59 GHz, 8.7 GHz bandwidth, and 8.3 mA current consumption under the 1 V supply. A 4-element RF beamforming receiver front end with four off-chip antennas is implemented in 65-nm CMOS. The front end is digitally controlled and based on the proposed phase oversampling vector modulation (POVM) method. The receiver front end includes 4 LNAs, 4 POVMs, and power combining networks. Four off-chip antennas are wire bonded to the receiver. Different substrate materials are experimented and compared for the antenna design, including RO4003, FR4, and RT5880 materials. Compared to start-of-the-art work, we achieve high phase resolution ($3.5^o$), very low NF (5.6 dB) with high gain (18.5 dB) for the beamformer at 56 GHz, and demonstrate truly spatial power combining and beam steering by using antennas. Compared with the conventional exhaustive lookup table method, the proposed POVM uses a semi-lookup table method. It uses a very small lookup table consisting of $\emph{only}$ basic oversampling vectors, and utilizes the linearity characteristics to adaptively select the weighting coefficients to compensate for the non-idealities in circuits, antenna array, and interfaces.

Author: Paul R. Prucnal
Publisher: CRC Press
ISBN: 1498725244
Category : Science
Languages : en
Pages : 412

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Book Description
This book sets out to build bridges between the domains of photonic device physics and neural networks, providing a comprehensive overview of the emerging field of "neuromorphic photonics." It includes a thorough discussion of evolution of neuromorphic photonics from the advent of fiber-optic neurons to today’s state-of-the-art integrated laser neurons, which are a current focus of international research. Neuromorphic Photonics explores candidate interconnection architectures and devices for integrated neuromorphic networks, along with key functionality such as learning. It is written at a level accessible to graduate students, while also intending to serve as a comprehensive reference for experts in the field.

Author: Ersan Kabalci
Publisher: Springer
ISBN: 9811317682
Category : Technology & Engineering
Languages : en
Pages : 644

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Book Description
The book presents a broad overview of emerging smart grid technologies and communication systems, offering a helpful guide for future research in the field of electrical engineering and communication engineering. It explores recent advances in several computing technologies and their performance evaluation, and addresses a wide range of topics, such as the essentials of smart grids for fifth generation (5G) communication systems. It also elaborates the role of emerging communication systems such as 5G, internet of things (IoT), IEEE 802.15.4 and cognitive radio networks in smart grids. The book includes detailed surveys and case studies on current trends in smart grid systems and communications for smart metering and monitoring, smart grid energy storage systems, modulations and waveforms for 5G networks. As such, it will be of interest to practitioners and researchers in the field of smart grid and communication infrastructures alike.

Author: Ali M. Niknejad
Publisher: Springer Science & Business Media
ISBN: 0387765611
Category : Technology & Engineering
Languages : en
Pages : 313

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Book Description
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.

Author: Amneh M. Akour
Publisher:
ISBN:
Category :
Languages : en
Pages : 130

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Book Description
Abstract: Emerging broadband applications are pushing for the need to build high data rate wireless transceivers at 60GHz for high volume low cost mobile devices. Central to the success of implementing such transceivers is the robust design of 60GHz CMOS RF front ends, especially the low noise amplifiers (LNAs). In the future, CMOS technology is expected to enable low-cost mm-wave applications such as high data-rate communication links, passive and active imaging and sensor systems, and instrumentation and measurements equipment. Building highly integrated inexpensive mm-wave CMOS devices requires high quality factor lumped and distributed passives with accurate and scalable transistor and passives models. My research work focuses on demonstrating a methodology for generating a scalable compact model for on-chip transmission lines and interconnects on lossy silicon substrate. The model is demonstrated over 20-60 GHz frequency band using two types of transmission lines built in TSMC's 0.18 um CMOS technology. Several CPWs and Microstrip lines are designed with different lengths to verify the accuracy and scalability of the extracted model. The compact model shows an excellent agreement with measured data with maximum deviation in S11 magnitude and phase of 9.2% and 5.6%, respectively, and maximum deviation in S21 magnitude and phase of 10.1% and 6.6%, respectively. Compared to existing model extraction methodologies, the required time for generating the compact model and simulating transmission lines is reduced significantly. The generated models are fully compatible with all commercial circuit simulators. This work presents key design techniques for different CMOS mm-wave LNA topologies. The proposed LNA topologies are, the three-stage cascode RF NMOS configuration and four-stage Common Gate followed by Common Source configuration. Simulation results for 60GHz LNAs show that the first topology can achieve a peak gain of 16.67 dB with a 3-dB bandwidth of 7 GHz, and a noise figure less than 11.04 dB over the entire bandwidth. The achieved peak gain from the second topology is 9.7 dB with a 3-dB bandwidth of 7 GHz and a noise figure less than 13.06 dB over the entire bandwidth. Simulation results for Sub-THz LNAs show that the first topology can achieve a peak gain of 23.5 dB at 92.1 GHz with a 3-dB bandwidth of 25 GHz, and a noise figure less than 5.5 dB over the entire bandwidth. The achieved peak gain from the second topology is 23.2 dB at 105 GHz with a 3-dB bandwidth of 15 GHz and a noise figure less than 6.1 dB over the entire bandwidth. The LNAs are designed and tested in 90nm RF CMOS. Moreover in today's radio design environment, the front-end analog devices in the transceiver require several silicon spins before they meet the specifications and they have relatively low yields. My work aims to propose a digital self-calibration technique for LNAs' to enhance the yield to at least 90%. The proposed technique is shown to maintain typical specified performance at worst case corners in the presence of random process, supply and temperature variations, and hence allowing for manufacturable 60GHz RF CMOS design for high volume applications without leading to over-design or increasing power consumption.

Author: Biljana Badic
Publisher: Apress
ISBN: 1484215060
Category : Computers
Languages : en
Pages : 152

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Book Description
Examine the challenges of 4G in the light of impending and crucial future communication needs, and review the lessons learned from an implementation and system operation perspective with an eye towards the next generation – 5G. You'll investigate key changes and additions to 5G in terms of use cases. You'll also learn about the applications for and explorations of the technology. Among all of the technological disruptions, two stand out in particular – mmWave and spectrum sharing technologies. Rolling Out 5G features detailed coverage of these two critical topics, and for the first time among 5G learning resources presents a holistic perspective on key ingredients for mobile communication in a 5G world. The authors represent highly experienced experts with valuable know-how in the field of wireless communications related research projects defining future technological trends. This unique group of talents will be able to consider the 5G technology evolution from all angles mentioned: long-term research, standardization and regulation, product design and marketization. This approach allows this much-needed book to capture the views of all key decision making stake-holders involved in the 5G definition process, and to serve readers in their roles connected with wireless communication's next generation of products and services. What You'll Learn See how 5G is expected to overcome 4G insufficiencies and challenges Examine expected 5G features, including usage of millimeter wave communication and licensed shared access Review key milestones of the next generation wireless communication technology including key standardization and regulation bodies Study new technologies and upcoming changes in feature sets and client expectations. Who This Book Is For Engineers of mobile device and infrastructure manufacturing industries, development engineers of semiconductor manufacturing industries, and engineers with a general interest in the field. Mobile network operators, along with students and business professionals in the telecommunications domain will also find the topic of interest.

Author: Suvra Sekhar Das
Publisher: CRC Press
ISBN: 1000794709
Category : Technology & Engineering
Languages : en
Pages : 296

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Book Description
Over the past few decades, wireless access networks have evolved extensively to support the tremendous growth of consumer traffic. This superlative growth of data consumption has come about due to several reasons, such as evolution of the consumer devices, the types of telephone and smartphone being used, convergence of services, digitisation of economic transactions, tele-education, telemedicine, m-commerce, virtual reality office, social media, e-governance, e-security, to name but a few.Not only has the society transformed to a digital world, but also the expectations from the services provided have increased many folds. The last mile/meters of delivery of all e-services is now required to be wireless. It has always been known that wireless links are the bottleneck to providing high data rates and high quality of service. Several wireless signalling and performance analysis techniques to overcome the hurdles of wireless channels have been developed over the last decade, and these are fuelling the evolution of 4G towards 5G. Evolution of Air Interface Towards 5G attempts to bring out some of the important developments that are contributing towards such growth.

Author: Khaled Khalaf
Publisher: Springer
ISBN: 3030166538
Category : Technology & Engineering
Languages : en
Pages : 109

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Book Description
This book discusses low power techniques for millimeter wave transmitter IC. Considerations for the front-end design are followed by several implementation examples in the 60GHz band in CMOS down to 28nm technology. Additionally, the design and implementation details of digitally-modulated millimeter wave polar transmitters are presented.