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 Dual Band and Wideband Millimeter Wave Phased Arrays for 5G Communication Systems written by Shufan Wang and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Demands of multi-standard operation have risen in millimeter-wave 5G phased arrays, in order to achieve more band coverage, reduce fabrication and deployment costs and realize inter-band carrier aggregation. This dissertation investigates dual-band and wideband design approaches to realize multi-standard phased array systems. In the dual-band approach, a 32-element dual-band, dual-beam phased array is designed by integrating dual-band patch antennas with commercial narrowband beamformers. Another design introduces an 8-element dual-band, dual-polarized, dual-beam phased array targeted at compact system applications. Both designs achieve 26-29 GHz and 37-41 GHz operation. In the wideband phased array approach, a novel stacked wideband dipole antenna is developed and integrated with a wideband SiGe Tx/Rx beamformers to achieve operation of 23-46 GHz. A single-polarized 64-element array and a dual-polarized 8-element array are then demonstrated with state-of-the-art performance. The 64-element array achieves a maximum EIRP of 50 dBm at P1dB operation, and 8-element dual-pol. array achieves 29 dBm. Both arrays demonstrate less than 4% EVM when transmitting 64-QAM 5G OFDM signal with 6-8 dB backoff from P1dB.

Download or read book Systems Engineering of Phased Arrays written by Rick Sturdivant and published by Artech House. This book was released on 2018-11-30 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt: Phased arrays, while traditionally used in radar systems, are now being used or proposed for use in internet of things (IoT) networks, high-speed back haul communication, terabit-per-second satellite systems, 5G mobile networks, and mobile phones. This book considers systems engineering of phased arrays and addresses not only radar, but also these modern applications. It presents a system-level perspective and approach that is essential for the successful development of modern phased arrays. Using practical examples, this book helps solve problems often encountered by technical professionals. Thermal management challenges, antenna element design issues, and architectures solutions are explored as well as the benefits and challenges of digital beam forming. This book provides the information required to train engineers to design and develop phased arrays and contains questions at the end of each chapter that professors will find useful for instruction.

Download or read book Millimeter Wave Circuits for 5G and Radar written by Gernot Hueber and published by Cambridge University Press. This book was released on 2019-06-20 with total page 455 pages. Available in PDF, EPUB and Kindle. Book excerpt: Discover the concepts, architectures, components, tools, and techniques needed to design millimeter-wave circuits for current and emerging wireless system applications. Focusing on applications in 5G, connectivity, radar, and more, leading experts in radio frequency integrated circuit (RFIC) design provide a comprehensive treatment of cutting-edge physical-layer technologies for radio frequency (RF) transceivers - specifically RF, analog, mixed-signal, and digital circuits and architectures. The full design chain is covered, from system design requirements through to building blocks, transceivers, and process technology. Gain insight into the key novelties of 5G through authoritative chapters on massive MIMO and phased arrays, and learn about the very latest technology developments, such as FinFET logic process technology for RF and millimeter-wave applications. This is an essential reading and an excellent reference for high-frequency circuit designers in both academia and industry.

Download or read book Advanced Phased Arrays and Techniques for 5G Multi Standard Applications and Carrier Aggregation at 24 29 GHz and 37 40 GHz written by Yusheng Yin and published by . This book was released on 2020 with total page 133 pages. Available in PDF, EPUB and Kindle. Book excerpt: The millimeter-wave (mm-wave) spectrum is currently used for the fifth-generation (5G) standard for high data-rate and low-latency links for both mobile users and fixed wireless access. The 5G standard supports licensed bands at 23.5-30.5 GHz and 37-43 GHz and unlicensed band at 57-71 GHz. Compared with 4G bands, the mm-wave bands support 10× larger bandwidth and thus can greatly improve the data-rate and maximize the throughput. At millimeter-wave frequencies, phased-array antennas with 32 to 512 elements are used to increase the antenna directivity so as to overcome the severe path loss. Such arrays can improve the link margin and allow for Gbps communications at 50-1000 meters. The research projects in this dissertation, in consequence, focus on the design and implementation of wideband 5G phased-arrays at 28 GHz and 39 GHz with 64 to 256 elements and with state-of-the-art performance. Also, the phased array system analysis for EVM degradation versus RMS error, and advanced applications such as carrier aggregation at mm-waves are investigated.

Download or read book Multifunctional and Multiband Planar Antennas for Emerging Wireless Applications written by Jayshri Kulkarni and published by CRC Press. This book was released on 2023-12-19 with total page 398 pages. Available in PDF, EPUB and Kindle. Book excerpt: Includes designed miniaturized monopole antennas for laptop computers with dual/triple band operations, performance enhancement, wider bandwidth, and increased data rate Explores the design of equivalent circuit diagrams of the proposed antenna. Presents integration of designed antennas into laptop for the validation of desired outcome Identifies and discusses technical challenges and new results related to the design of 5G/WLAN antennas Contains graphical illustration, design steps, detail analysis of each step along with proper justification

Download or read book RF Circuits for 5G Applications written by Sangeeta Singh and published by John Wiley & Sons. This book was released on 2023-04-18 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt: RF CIRCUITS FOR 5G APPLICATIONS This book addresses FinFET-based analog IC designing for fifth generation (5G) communication networks and highlights the latest advances, problems, and challenges while presenting the latest research results in the field of mmwave integrated circuits designing. The wireless communication sector is experiencing exponential expansion, particularly in the areas of mobile data and the 5G mobile network, creating fresh market possibilities for designing the integrated circuits (ICs) needed in the industry. Drawing from scientific literature and practical realization, this book explores FinFET-based analog IC designing for 5G communication networks and considers the latest breakthroughs and obstacles. It also presents the recent research trends and future roadmaps for the 5G communication circuits. RF Circuits for 5G Applications includes design guidelines to be considered when designing these circuits and detrimental scaling effects of the same. In addition, to enhance the usability of this book, the editors have included real-time problems in RFIC designing and case studies from experimental results, as well as clearly demarcated design guidelines for the 5G communication ICs designing. Audience The primary target audience includes researchers, postgraduate students, and industry professionals pursuing specializations in RF engineering, electronics engineering, electrical engineering, information, and communication technology.

Download or read book W band Phased Array Systems Using Silicon Integrated Circuits written by Sang Young Kim and published by . This book was released on 2012 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis demonstrates the silicon-based on-chip W-band phased array systems. An improved wideband I/Q network to minimize the capacitive loading problem is presented, and its implementation in a 60-80 GHz active phase shifter using 0.13 [mu]m SiGe BiCMOS process is demonstrated. In addition, a 67-78 GHz 4-bit passive phase shifter using low-pass pi-network and 0.13 [mu]m CMOS switches is demonstrated. By adding amplifiers to the passive phase shifter with the architecture of alternating amplifiers and phase shifter cells, a low-power BiCMOS 4-element phased array receiver for 76-84 GHz applications are presented. Lastly, a 76-84 GHz 16-element phased array receiver, designed differentially in order to reduce the sensitivity to packaging effect such as ground inductance, is presented. This thesis presents the silicon-based on-chip W-band phased array systems. An improved quadrature all-pass filter (QAF) and its implementation in 60-80 GHz active phase shifter using 0.13 [mu]m SiGe BiCMOS technology is presented. It is demonstrated that with the inclusion of an Rs/R in the high Q branches of C and L, the sensitivity to the loading capacitance, therefore the I/Q phase and amplitude errors are minimized. This technique is especially suited for wideband millimeter-wave circuits where the loading capacitance (CL) is comparable to the filter capacitance (C). A prototype 60-80 GHz active phased shifter using the improved QAF is demonstrated. The overall chip size is 1.15 x 0.92 mm2 with the power consumption of 108 mW. The measured S11 and S22 are -10 dB at 60-80 GHz and 60-73 GHz, respectively. The measured average power gain is 11.0-14.7 dB at 60-79 GHz with the rms gain error of 1.3 dB at 60-78 GHz for 4-bit phase states. And the rms phase error is 9.1° at 60-78.5 GHz showing wideband 4-bit performance. The measured NF is 9-11.6 dB at 63-75 GHz and the measured P1dB is -27 dBm at 70 GHz. In another project, a 67-78 GHz 4-bit passive phase shifter using 0.13 um CMOS switches is demonstrated. The phase shifter is based on a low-pass pi-network. The chip size is 0.45 x 0.3 mm2 without pads and consumes virtually no power. The measured S11 and S22 is -10 dB at 67-81 GHz for all 16 phase states. The measured gain of 4-bit phase shifter is -19.2 +/- 3.7 dB at 77 GHz with the rms gain error of

Download or read book Millimeter Wave mmWave Communications written by Manuel García Sanchez and published by MDPI. This book was released on 2020-03-25 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt: The millimeter-wave frequency band (30–300 GHz) is considered a potential candidate to host very high data rate communications. First used for high capacity radio links and then for broadband indoor wireless networks, the interest in this frequency band has increased as it is proposed to accommodate future 5G mobile communication systems. The large bandwidth available will enable a number of new uses for 5G. In addition, due to the large propagation attenuation, this frequency band may provide some additional advantages regarding frequency reuse and communication security. However, a number of issues have to be addressed to make mm-wave communications viable. This book collects a number of contributions that present solutions to these challenges.

Download or read book MIMO Antenna Systems for 5G and Beyond written by Xiaoming Chen and published by John Wiley & Sons. This book was released on 2024-09-05 with total page 404 pages. Available in PDF, EPUB and Kindle. Book excerpt: Discover current design practices and performance metrics in this comprehensive guide to the latest methods of developing MIMO antenna systems Multiple-input multiple-output (MIMO) antenna systems use multiple sets of antennas to increase the capacity of a radio link, or to send and receive multiple simultaneous data signals over the same radio channel. It’s become an increasingly integral part of wireless and mobile data networks, from the earliest generations of wireless internet to cutting-edge 5G systems. The coming 6G networks will also rely on 6G antenna systems, making it all the more critical for the next generation of engineers and antenna designers to have a firm grasp of this foundational technology. MIMO Antenna Systems for 5G and Beyond offers a timely introduction to these systems and their design principles. Incorporating the latest designs and a comprehensive overview of current system configurations, it provides complete design procedures and performance metrics for MIMO systems. The result is a one-stop shop for all MIMO applications and wireless standards. MIMO Antenna Systems for 5G and Beyond readers will also find: The first book ever to cover MIMO design practices specific to 5G wireless communications—and beyond Detailed discussion of MIMO configurations including passive, reconfigurable, beamforming, and more Detailed illustrations and design files MIMO Antenna Systems for 5G and Beyond is ideal for practicing engineers, as well as researchers in wireless and radio engineering sectors.

Download or read book Digitally Assisted Fully Integrated Wideband Transmitters for High Speed Millimeter Wave Wireless Communication Links written by David del Rio and published by Springer. This book was released on 2019-08 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents design methods and considerations for digitally-assisted wideband millimeter-wave transmitters. It addresses comprehensively both RF design and digital implementation simultaneously, in order to design energy- and cost-efficient high-performance transmitters for mm-wave high-speed communications. It covers the complete design flow, from link budget assessment to the transistor-level design of different RF front-end blocks, such as mixers and power amplifiers, presenting different alternatives and discussing the existing trade-offs. The authors also analyze the effect of the imperfections of these blocks in the overall performance, while describing techniques to correct and compensate for them digitally. Well-known techniques are revisited, and some new ones are described, giving examples of their applications and proving them in real integrated circuits. Discusses the design of mm-wave transceivers from both the analog and digital design perspectives; Analyzes different well-known architectures and revisits some key aspects in order to make them suitable for mmW circuits; Covers design considerations at the system, block/circuit and transistor levels of abstraction; Enables readers to build high-performance, energy and cost-efficient mm-wave radios; Addresses circuit reliability and sensibility to environmental variations, in order to implement robust and auto-adjustable systems; Analyzes quantitatively the effect of different imperfections on the performance of the whole system, and proposes different methods to compensate for them and mitigate their effects; Applies design techniques described in real examples, demonstrating the transmission of multi-Gbps signals.

Download or read book Enabling Millimeter wave Circuit Techniques for High Data Rate Communication written by Najme Ebrahimiseraji and published by . This book was released on 2017 with total page 147 pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation has been mainly focused on reconfigurable mm-wave integrated circuits for next generation wireless communication systems (namely, 5G). One of the major approaches to making 5G a reality is the use of high-frequency signals in the millimeter-wave (mm-wave) frequency band to facilitate access to more bandwidth. This can deliver faster and more reliable data to more users. This dissertation contributes to making wideband, bidirectional, and scalable RFICs for high data rate point-to-point communications over large distances in mm-wave bands, particularly the E-band (71-76 GHz, 81-86 GHz). The E-band is a licensed band in the US, with 10 GHz of bandwidth allocated to low-cost, high-capacity, and point-to-point communication. For backhaul base-stations or air-to-ground communication, a scalable and large-element phased array is desired to acquire the appropriate isotropic radiated power and signal to noise ratio. Additionally, bidirectional operation supporting transmit (TX) and receive (RX) in a single aperture is desirable to minimize the area and save power. This dissertation has focused on new architectures for scalable, bidirectional, and wideband phased arrays using IBM\textquoteright s fastest SiGe technology, 90 nm. In this dissertation, the first E-band scalable phased-array transceiver is proposed based on coupled oscillator architecture. Coupled oscillator phased arrays have the advantage of low power and low complexity, resulting in an architecture that easily scales to the number of elements as multiple die can be aggregated to form a larger array through local oscillator (LO) power distribution and intermediate frequency (IF) power combining. However, silicon processes introduce undesirable parasitics and manufacturing tolerances to the transistor and passive devices. When multiple oscillators are present in a single die, the oscillators couple through the substrate. The substrate coupling introduces additional parasitic coupling paths between oscillators; this causes pulling and, consequently, amplitude and phase variation between the oscillators. In addition, the parasitics from the injection node to the substrate deviate the ILO performance from its ideal behavior. Conventional analysis of the amplitude and phase noise typically ignores the effect of the silicon substrate parasitic effects. This dissertation investigated the nonlinear dynamics of an injection-locked oscillator (ILO), where the effective circuit parameters of ILO performance were observed. More specifically, new amplitude and phase equations are derived that took into account the transistor\textquoteright s device parasitics and silicon substrate\textquoteright s parasitic coupling effects, including the transistor injection node parasitic capacitance ($C_{P}$), substrate parasitic conductive ($R_{sub}$) and dielectric ($C_{j}$) features. The derived models are compared with both the simulation and measurement results. The proposed 2x2 transceiver phased array block diagram described in this dissertation employs 4 injection-locked oscillators (ILOs) operating at a lower frequency range (in this case, 1/4 of the desired LO frequency), followed by a frequency quadrupler, to form a beam in transmit and receive modes. The bidirectional front-end is designed to operate at E-band within 3-dB bandwidth. Since the ILO-based phase shifting is technically challenging at millimeter-wave bands due to the parasitics of the injection circuitry and the oscillator phase noise trade-offs, the high-frequency limitations of the ILO phase shifter is considered and wide locking range and a less parasitic sensitive solution for current injection using folded-cascode architecture is proposed. The proposed ILO-based phase array architecture result in low phase noise and low channel to channel isolation supporting 6 Gb/s data rate at 256 QAM modulation. The conventional architectures of the E-band transceiver require a wide tuning range, around 10 GHz, for the LO signal and wide-bandwidth IF blocks. The wide-bandwidth requirement of LO and IF frequency for mm-waves increases the power consumption and complexity of the system. This dissertation proposes a novel architecture, named the \textquotedblleft Image-selection\textquotedblright{} E-band phased array. This new architecture makes the upper-band (81-86 GHz) and the lower-band (71-76 GHz) of the E-band spectrum images of each other in comparison to the LO signal, which is located at the center frequency (78.5 GHz). Therefore, an image rejection architecture is desired to select the wanted band while rejecting the other. The significant advantage of this architecture is that it only requires an LO with the quadrature phases within a tuning range lower than 1 GHz . This will relax the system design trade-offs to the circuit impairments. For bidirectional operation purpose and preventing use of quadrature generation circuitry at direct intermediate frequency (IF) or radio frequency (RF) signal paths, sliding-IF weaver architecture mixers are employed with the phase inverter in the divider path to select the upper or lower band. This architecture leads in to a flat conversion gain over the bandwidth and low amplitude and phase imbalance. The achieved QAM modulation data rate from this technique is the state of art,\lyxdeleted{najmebi}{Mon May 29 19:43:48 2017}{ } 9Gb/s (64 QAM) with less than 5\% EVM and 12 Gb/s (16 QAM) with less than 10\% EVM.

Download or read book Millimeter Wave Phased Arrays for 5G Communications written by Umut Kodak and published by . This book was released on 2019 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt: The fifth-generation (5G) wireless communication standard is being developed to supply faster wireless data transfer to ever-growing number of cellular network subscribers, and millimeter-wave phasedarray transceivers have been proven to be perfect candidates for 5G infrastructure. This dissertation focuses on the design and implementation of phased-arrays at 28 GHz and 60 GHz using 45-nm CMOS SOI and 0.18-[mu]m SiGe BiCMOS technologies, respectively. A common-leg transmit/receive phased-array front-end module is implemented for high-efficiency and high-linearity 5G applications. The design flow is discussed and the error-vector magnitude (EVM) measurements are demonstrated with 8 Gbps data-rate. Reusing some of the sub-blocks of this design, a 28 GHz two-element passive bidirectional phased-array core-chip is designed and flip-chip packaged. The details of this design is presented in the appendix. The 60 GHz dual-polarized dual-beam wafer-scale phased-array transceiver addresses the challenges of building a phased-array that is larger than the standard maximum reticle size (22x22 mm2) for increased coverage. The design strategies are discussed as well as the system and communication link analysis. This work shows the construction of infinite-element phased-arrays on a low-cost printed circuit board (PCB) using only bondwires to form a functional wafer-scale array.

Download or read book Integrated Microwave and Millimeter wave Phased array Designs in Silicon Technologies written by Kwang-Jin Koh and published by . This book was released on 2008 with total page 149 pages. Available in PDF, EPUB and Kindle. Book excerpt: This research focuses on the design and analysis of on-chip phased-array receivers and transmitters in silicon technologies. Passive phase shifters have been widely used in conventional discrete implementations of phased-arrays which are based on transmit/receive modules in III-V technologies. However their large volume and high loss impose several challenging issues for on-chip integration. To leverage system optimizations of on-chip phased-arrays, active phase shifter architecture is primarily investigated in this dissertation. The active phase shifter utilizes a quadrature signal interpolation where the I/Q signals are added with appropriate amplitude and polarity to synthesize the required phase. The quadrature signal generator is a key element for accurate multi-bit phase states in the active phase shifter. To generate lossless wideband quadrature signals, a novel I/Q signal generator based on second-order L-C series resonance is developed. Active phase shifters with 4-bit and 5-bit control are then designed in 0.13-um and 0.18-um CMOS technologies and tested successfully for 6-26 GHz phased-arrays applications, featuring the smallest chip size ever reported at these frequencies with similar phase resolutions. After successful demonstration of the active phase shifters, an eight-element phased-array receiver is developed in 0.18-um SiGe BiCMOS technology for X- and Ku-band satellite communications. The phased-array receiver adopts corporate-feed architecture implemented with active signal combiners. The phased-array receiver is rigorously characterized including channel-to-channel mismatches and signal coupling errors from different channels. The on-chip phased-array designs are then extended to millimeter-wave frequencies. A four-element phased-array receiver and a sixteen-element phased-array transmitter are designed using the SiGe BiCMOS technology and tested successfully for Q-band applications. Wilkinson couplers are compactly integrated for linear coherent signal combining in the Q-band phased-array receiver. Also in the Q-band transmitter array, passive Tee-junction power dividers are integrated as a linear signal feed network. The power divider is based on a coaxial-type shielded transmission line utilizing three-dimensional metal stack, which leads to a compact corporate-feed network suitable for large on-chip arrays. The sixteen-element phased-array transmitter marks the highest integration of phased-array elements known to-date, proving a good scalability to a large array of the proposed phased-array architecture. Also, each phased-array design integrates all digital control units and presents the first demonstration of on-chip silicon phased-array at the corresponding design frequency, solving one of key barriers for low-cost and complex phased-arrays.

Download or read book An Ultra wideband Transmit receive Module Using 10 to 35 GHz Six channel Microstrip Multiplexers and Its Applications to Phased array Antenna Transceiver Systems written by Seung Pyo Hong and published by . This book was released on 2006 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation introduces new and simple techniques for suppression of multispurious passbands, which are inherent to the conventional microstrip parallel coupleline bandpass filters. In addition, the operation of harmonic suppression is analyzed using a simple model. Special emphasis is placed on the applications of several new filter designs for microstrip diplexers and multiplexers. Compact, full-duplex beam scanning antenna transceiver systems with extremely broad bandwidth have also been developed. Recent advances in broadband monolithic microwave integrated circuit (MMIC) amplifiers make the realization of extremely broadband phased-array transceiver systems possible. The ultra-wideband phased-array transceiver systems can be used in multi-band mobile satellite communication systems and wideband radars. This dissertation presents a multi-band, compact, full-duplex, beam scanning antenna transceiver system for satellite communications and two designs of ultra-wideband, low-cost radar systems as applications of the MMIC amplifiers. In addition, a multi-frequency antenna has been developed. A single-feed triple frequency microstrip patch antenna is presented as an answer to the recent demand formulti-function systems in the wireless communications. In summary, the research presented in this dissertation covers every component required to build an ultra-wideband, full-duplex beam scanning phased-array antenna transceiver. The work done in this dissertation should have many applications in the wireless communication systems and wideband radar technologies.

Download or read book Silicon based Millimeter wave Circuits for W band Applications written by Chun-Cheng Wang and published by . This book was released on 2012 with total page 115 pages. Available in PDF, EPUB and Kindle. Book excerpt: Historically, monolithic microwave integrated circuits (MMICs) have been designed using III-V semiconductor technologies, such as GaAs and InP. In recent years, the number of publications reporting silicon-based millimeter-wave (mm-wave) transmitter, receivers, and transceivers has grown steadily. For mm-wave applications including gigabit/s point-to-point links (57-64 GHz), automotive radar (77-81 GHz) and imaging (94 GHz) to reach mainstream market, the cost, size and power consumption of silicon-based solution has to be significantly below what is being achieved today using compound semiconductor technology. This dissertation focuses the effort of designing and implementing silicon-based solutions through circuit- and system-level innovation for applications in the W-band frequency band (75-110GHz), in particular, 94GHz passive imaging band. A W-band front-end receiver in 65nm CMOS based entirely on slow-wave CPW (SW-CPW) with frequency tripler as the LO is designed and measured. The receiver achieves a total gain of 35-dB, -3dB-BW of 12 GHz, a NF of 9-dB, a P1-dB of -40dBm, a low power consumption of 108mW under 1.2/0.8V. This front-end receiver chipset in conjuction with an analog back-end can be used to form a radiometer. Leveraging the work done in 65nm CMOS, the first integrated 2x2 focal-plane array (FPA) for passive imaging is implemented in a 0.18um SiGe BiCMOS process (fT/fmax=200/180GHz). The FPA incorporates four Dicke-type receivers. Each receiver employs a direct-conversion architecture consisting of an on-chip slot dipole antenna, an SPDT switch, a lower noise amplifier, a single-balanced mixer, an injection-locked frequency tripler (ILFT), a zero-IF variable gain amplifier, a power detector, an active bandpass filter and a synchronous demodulator. The LO signal is generated by a shared Ka-band PLL and distributed symmetrically to four ILFTs. This work demonstrates the highest level of integration of any silicon-based systems in the 94GHz imaging band. Finally, the main design bottleneck of any wireless transceiver system, the frequency synthesizer/phase-locked loop is investigated. Two monolithically integrated W-band frequency synthesizers are presented. Implemented in a 0.18um SiGe BiCMOS, both architectures incorporate the same 30.3-33.8GHz PLL core. One synthesizer uses an injection-locked frequency tripler (ILFT) with locking range of 92.8-98.1GHz and the other employ a harmonic-based frequency tripler (HBFT) with 3-dB bandwidth of 10.5GHz from 90.9-101.4GHz, respectively. The frequency synthesizer is suitable for integration in mm-wave phased array and multi-pixel systems such as W-band radar/imaging and 120GHz Gb/s communication.

Download or read book Reconfigurable Circuit Design Techniques for MM Wave Phased Array Radios written by Pawan Agarwal and published by . This book was released on 2017 with total page 133 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wireless technology is redefining life and fueling socio-economic growth globally due to a dramatic increase in the use of mobile devices and growing number of data-hungry applications. However, the very success of wireless technology is leading to a severe spectrum crunch. Ongoing advances in the device and integrated circuit technology are enabling low-cost phased-array radios that can operate at millimeter-wave (mm-wave) bands as they provide very large bandwidth to meet data-rate demands. Future single-chip solution will require wideband circuits to support multiple mm-wave bands for a higher aggregate data-rate. In addition, low-power consumption and a compact circuit size are desired for battery-limited mobile radios as the power consumption and area of phased-array increases with the number of array elements.