Download or read book A Study of Radio Frequency Converters and Mixers written by James J. Skiles and published by . This book was released on 1951 with total page 85 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Microwave Mixer Technology and Applications written by Bert Henderson and published by Artech House. This book was released on 2013-08-01 with total page 877 pages. Available in PDF, EPUB and Kindle. Book excerpt: Although microwave mixers play a critical role in wireless communication and other microwave applications employing frequency conversion circuits, engineers find that most books on this subject emphasize theoretical aspects, rather than practical applications. That’s about to change with the forthcoming release of Microwave Mixer Technology and Applications. Based on a review of over one thousand patents on mixers and frequency conversion, authors Bert Henderson and Edmar Camargo have written a comprehensive book for mixer designers who want solid ideas for solving their own design challenges. Many of the important and most interesting patents and related circuits are discussed in the several application oriented chapters. In addition, important contributions from the technical literature are included to provide a solid theoretical foundation. This book contains both introductory and advanced material about active and passive mixers that use bipolar transistor, FET, or diode switching devices. Theory and design details are presented for dozens of important mixer designs, with practical application information derived from the authors’ decades of experience.

Download or read book 5 GHz RF to 500 MHz If Single Ended Down converter Mixer written by Malavika Raghuram Hegde and published by . This book was released on 2017 with total page 97 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this project, a 5 GHz Radio Frequency (RF) to 500 MHz Intermediate Frequency (IF) Single-Ended Down-Converter Mixer is designed. Its primary function is to down-convert high frequencies in the RF range to frequencies in the IF range. An RF frequency of 5 GHz is chosen as an input at the RF port of the mixer and a local oscillator (LO) generating signal at a frequency of 5.5 GHz is used in this project particularly. The two inputs are mixed and results in an IF frequency signal at the output port that consists of the sum and difference frequencies. A bandpass filter (BPF) is used at the output port of the mixer which allows the user to choose either the sum frequency or the difference frequency at the output. Since the difference frequency is used in this mixer, it is called a down-converter mixer. Since the frequency used by the LO is higher than the RF frequency used, it is a high-side injection mixer. In an ideal mixer, the output signal suffers losses since the amplitude of the output gets reduced to almost half the amplitude of the input signal and the power of the output signal is reduced to one fourth the power of the input signal. In the practical implementation of the mixer, the conversion loss may be way beyond 6 dB. This usually depends on the scaling parameters of the device. A Skyworks schottky diode SMS7621-061 is used in this project. A Wilkinson coupler is also used at the input of the mixer, since the coupler is able to realize a very high isolation between the ports while upholding all ports in their matched condition. A matching network for the mixer is also designed to ensure power transfer to the highest degree and also reduce signal reflections arising from load as much as possible. In this project, a conversion loss of 5.7 dB, dynamic factor of 23.6, power loss ratio of 50.25, additional loss of 0 dB was obtained.

Download or read book Studies on Selected Topics in Radio Frequency Digital to Analog Converters written by Mohammad Reza Sadeghifar and published by Linköping University Electronic Press. This book was released on 2019-10-14 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt: The network latency in fifth generation mobile technology (5G) will be around one millisecond which is much lower than in 4G technology. This significantly faster response time together with higher information capacity and ultra-reliable communication in 5G technology will pave the way for future innovations in a smart and connected society. This new 5G network should be built on a reasonable wireless infrastructure and 5G radio base-stations that can be vastly deployed. That is, while the electrical specification of a radio base-station in 5G should be met in order to have the network functioning, the size, weight and power consumption of the radio system should be optimized to be able to commercially deploy these radios in a huge network. As the number of antenna elements increases in massive multiple-input multiple-output based radios such as in 5G, designing true multi-band base-station radios, with efficient physical size, power consumption and cost in emerging cellular bands especially in mid-bands (frequencies up to 10~GHz), is becoming a challenge. This demands a hard integration of radio components; particularly the radio's digital application-specific integrated circuits (ASIC) with high-performance energy-efficient multi-band data converters. In this dissertation radio frequency digital-to-analog converter (RF DAC) and semi-digital finite-impulse response (FIR) filter digital-to-analog converter has been studied. Different techniques are used in these structures to improve the transmitter's overall performance. In the RF DAC part, a radio frequency digital-to-analog converter solution is presented, which is capable of monolithic integration into today's digital ASIC due to its digital-in-nature architecture, while fulfills the stringent requirements of cellular network radio base station linearity and bandwidth. A voltage-mode conversion method is used as output stage, and configurable mixing logic is employed in the data path to create a higher frequency lobe and utilize the output signal in the first or the second Nyquist zone and hence achieving output frequencies up to the sample rate. In the semi-digital FIR part, optimization problem formulation for semi-digital FIR digital-to-analog converter is investigated. Magnitude and energy metrics with variable coefficient precision are defined for cascaded digital Sigma-Delta modulators, semi-digital FIR filter, and Sinc roll-off frequency response of the DAC. A set of analog metrics as hardware cost is also defined to be included in semi-digital FIR DAC optimization problem formulation. It is shown that hardware cost of the semi-digital FIR DAC, can be reduced by introducing flexible coefficient precision in filter optimization while the semi-digital FIR DAC is not over-designed either. Different use cases are selected to demonstrate the optimization problem formulations. A combination of magnitude metric, energy metric, coefficient precision and analog metric are used in different use cases of the optimization problem formulation and solved to find out the optimum set of analog FIR taps. Moreover, a direct digital-to-RF converter (DRFC) is presented in this thesis where a semi-digital FIR topology utilizes voltage-mode RF DAC cells to synthesize spectrally clean signals at RF frequencies. Due to its digital-in-nature design, the DRFC benefits from technology scaling and can be monolithically integrated into advance digital VLSI systems. A fourth-order single-bit quantizer bandpass digital Sigma-Delta modulator is used preceding the DRFC, resulting in a high in-band signal-to-noise ratio (SNR). The out-of-band spectrally-shaped quantization noise is attenuated by an embedded semi-digital FIR filter. The RF output frequencies are synthesized by a configurable voltage-mode RF DAC solution with a high linearity performance. A compensation technique to cancel the code-dependent supply current variation in voltage-mode RF DAC for radio frequency direct digital frequency synthesizer is also presented in this dissertation and is studied analytically. The voltage-mode RF DAC and the compensation technique are mathematically modeled and system-level simulation is performed to support the analytical discussion.

Download or read book Radio Frequency Electronics written by Jon B. Hagen and published by Cambridge University Press. This book was released on 2009-06-11 with total page 453 pages. Available in PDF, EPUB and Kindle. Book excerpt: Covering the fundamentals applying to all radio devices, this is a perfect introduction to the subject for students and professionals.

Download or read book U S Government Research Reports written by and published by . This book was released on 1964 with total page 2180 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Microwave Mixers written by Stephen A. Maas and published by Artech House Microwave Library. This book was released on 1993 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides an introduction to fundamental mixer types, as well as variations on the classical mixer designs.

Download or read book Technical Abstract Bulletin written by and published by . This book was released on with total page 828 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Radio Frequency Circuit Design written by W. Alan Davis and published by John Wiley & Sons. This book was released on 2003-06-11 with total page 345 pages. Available in PDF, EPUB and Kindle. Book excerpt: A much-needed, up-to-date guide to the rapidly growing area of RF circuit design, this book walks readers through a whole range of new and improved techniques for the analysis and design of receiver and transmitter circuits, illustrating them through examples from modern-day communications systems. The application of MMIC to RF design is also discussed.

Download or read book Silicon Based RF Front Ends for Ultra Wideband Radios written by Aminghasem Safarian and published by Springer Science & Business Media. This book was released on 2007-12-28 with total page 97 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive study of silicon-based distributed architectures in wideband circuits are presented in this book. Novel circuit architectures for ultra-wideband (UWB) wireless technologies are described. The book begins with an introduction of several transceiver architectures for UWB. The discussion then focuses on RF front-end of the UWB radio. Therefore, the book will be of interest to RF circuit designers and students.

Download or read book Radio Frequency and Microwave Communication Circuits written by Devendra K. Misra and published by John Wiley & Sons. This book was released on 2004-10-14 with total page 592 pages. Available in PDF, EPUB and Kindle. Book excerpt: This practical book presents a top-down approach to RF and microwave circuit design, offering a detailed introduction to the technology behind the exploding wireless communications market. It describes circuits in the overall context of communications systems, and includes many worked examples of real-world devises and engineering problems. Material on CAD techniques is available via ftp.

Download or read book A New Method for Obtaining Selectivity at Radio frequencies by Means of Frequency Conversion and Audio frequency Networks written by Manuel Golmayo Cifuentes and published by . This book was released on 1952 with total page 274 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Design of CMOS Radio Frequency Integrated Circuits written by Thomas H. Lee and published by Cambridge University Press. This book was released on 2004 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book, first published in 2004, is an expanded and revised edition of Tom Lee's acclaimed RFIC text.

Download or read book Wireless Technologies written by Krzysztof Iniewski and published by CRC Press. This book was released on 2017-12-19 with total page 696 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advanced concepts for wireless technologies present a vision of technology that is embedded in our surroundings and practically invisible. From established radio techniques like GSM, 802.11 or Bluetooth to more emerging technologies, such as Ultra Wide Band and smart dust motes, a common denominator for future progress is the underlying integrated circuit technology. Wireless Technologies responds to the explosive growth of standard cellular radios and radically different wireless applications by presenting new architectural and circuit solutions engineers can use to solve modern design problems. This reference addresses state-of-the art CMOS design in the context of emerging wireless applications, including 3G/4G cellular telephony, wireless sensor networks, and wireless medical application. Written by top international experts specializing in both the IC industry and academia, this carefully edited work uncovers new design opportunities in body area networks, medical implants, satellite communications, automobile radar detection, and wearable electronics. The book is divided into three sections: wireless system perspectives, chip architecture and implementation issues, and devices and technologies used to fabricate wireless integrated circuits. Contributors address key issues in the development of future silicon-based systems, such as scale of integration, ultra-low power dissipation, and the integration of heterogeneous circuit design style and processes onto one substrate. Wireless sensor network systems are now being applied in critical applications in commerce, healthcare, and security. This reference, which contains 25 practical and scientifically rigorous articles, provides the knowledge communications engineers need to design innovative methodologies at the circuit and system level.

Download or read book Engineering Superconductivity written by Peter J. Lee and published by John Wiley & Sons. This book was released on 2001-05-02 with total page 677 pages. Available in PDF, EPUB and Kindle. Book excerpt: Comprehensive coverage of superconductivity from the Wiley Encyclopedia of Electrical and Electronics Engineering Engineering Superconductivity features fifty articles selected from the Wiley Encyclopedia of Electrical and Electronics Engineering, the one truly indispensable reference for electrical engineers. Superconductor technology has made highly advanced experiments possible in chemistry, biochemistry, particle physics, and health sciences, and introduced new applications currently in use in fields from medicine to cellular communications. Taken together, these articles-written by acknowledged experts in the field-provide the most complete and in-depth accounting of superconductivity in existence. The book brings together a wealth of information that would not be available to those who do not have access to the full 24-volume encyclopedia. This thorough survey looks at the application of superconductors from an engineer's practical perspective rather than a theoretical approach. Engineering Superconductivity provides full coverage of the fundamentals of superconducting behavior and explains the properties and fabrication methods of commercially produced superconductors. Up-to-date material on superconductor applications as well as competing technologies is included. The fifty articles presented here are divided into three sections: Superconductivity and magnetism Superconductors Applications and related technology Engineering Superconductivity is a complete and up-to-date reference for engineers, physicists, chemists, materials scientists, and anyone working with superconductors.

Download or read book Transceiver and Radio Frequency Interegated Circuits Evaluation Via Electronic Design Automation written by Yu Ming Chen and published by . This book was released on 2007 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis study presents the theory and design methodology of Radio Frequency Integrated Circuits (RFIC) and analyzes a RF frond-end receiver and down-conversion mixers using circuit evaluation tools. The theory of RF is described on both architectures and circuit levels with respect to monolithic implementation in integrated semiconductor technologies. The design methodology provides an efficient and practical way to approach the theoretical values by using an Electronic Design Automation (EDA) tool called Cadence Virtuoso custom design platform. Based on the libraries provided by the Cadence Virtuoso, a Heterodyne receiver and two Gilbert mixer circuits have been evaluated through the simulator to reveal the system behavioral. The Heterodyne receiver is imitated with blocks of RF components by using a network synthesis technique as a design method. Both mixer circuits are evaluated in a setup of low-power and high radio frequency conditions. The evaluation results are discussed at the end of this thesis study.

Download or read book RF Components and Circuits written by Joe Carr and published by Newnes. This book was released on 2002-05-22 with total page 416 pages. Available in PDF, EPUB and Kindle. Book excerpt: Foreword; Preface; Introduction to radio frequencies; Signals and noise; Radio receivers; RF amplifiers; Mixers; Oscillators; IF amplifiers and filters; Demodulators; Capacitors; Inductors; Tuning and matching; Splitters and hybrids; Monolithic microwave integrated circuits; Measuring inductors and capacitors; RF power measurement; Filtering against EMI/RFI; Noise cancellation bridges; Bibliography; Index.