Download or read book Phase Noise Processes and Suppression Techniques in RF LC Voltage controlled Oscillators written by Stephen Justin Mallin and published by . This book was released on 2006 with total page 306 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Phase Noise Suppression Techniques for 5 6GHZ Oscillator Design written by Yang Zhang and published by . This book was released on 2007 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Techniques for Reducing Phase Noise in CMOS LC Voltage controlled Oscillators Used in Wireless Systems written by Hyman Shanan and published by . This book was released on 2005 with total page 231 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Design of Low Noise Oscillators written by Ali Hajimiri and published by Springer Science & Business Media. This book was released on 2007-05-08 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt: It is hardly a revelation to note that wireless and mobile communications have grown tremendously during the last few years. This growth has placed stringent requi- ments on channel spacing and, by implication, on the phase noise of oscillators. C- pounding the challenge has been a recent drive toward implementations of transceivers in CMOS, whose inferior 1/f noise performance has usually been thought to disqualify it from use in all but the lowest-performance oscillators. Low noise oscillators are also highly desired in the digital world, of course. The c- tinued drive toward higher clock frequencies translates into a demand for ev- decreasing jitter. Clearly, there is a need for a deep understanding of the fundamental mechanisms g- erning the process by which device, substrate, and supply noise turn into jitter and phase noise. Existing models generally offer only qualitative insights, however, and it has not always been clear why they are not quantitatively correct.

Download or read book RF CMOS Oscillators for Modern Wireless Applications written by Masoud Babaie and published by River Publishers Circuits and. This book was released on 2019 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The main goal of this book is to bring forth the exciting and innovative RF oscillator structures that demonstrate better phase noise performance, lower cost, and higher power efficiency than currently achievable.

Download or read book Low Noise Low Power Design for Phase Locked Loops written by Feng Zhao and published by Springer. This book was released on 2014-11-25 with total page 106 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book introduces low-noise and low-power design techniques for phase-locked loops and their building blocks. It summarizes the noise reduction techniques for fractional-N PLL design and introduces a novel capacitive-quadrature coupling technique for multi-phase signal generation. The capacitive-coupling technique has been validated through silicon implementation and can provide low phase-noise and accurate I-Q phase matching, with low power consumption from a super low supply voltage. Readers will be enabled to pick one of the most suitable QVCO circuit structures for their own designs, without additional effort to look for the optimal circuit structure and device parameters.

Download or read book Noise Analysis of Radio Frequency Circuits written by Amit Mehrotra and published by Springer Science & Business Media. This book was released on 2013-04-17 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt: Predicting noise in RF systems at the design stage is extremely important. This book concentrates on developing noise simulation techniques for RF circuits. The authors present a novel approach of performing noise analysis for RF circuits.

Download or read book Transformer Based Design Techniques for Oscillators and Frequency Dividers written by Howard Cam Luong and published by Springer. This book was released on 2015-10-07 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides in-depth coverage of transformer-based design techniques that enable CMOS oscillators and frequency dividers to achieve state-of-the-art performance. Design, optimization, and measured performance of oscillators and frequency dividers for different applications are discussed in detail, focusing on not only ultra-low supply voltage but also ultra-wide frequency tuning range and locking range. This book will be an invaluable reference for anyone working or interested in CMOS radio-frequency or mm-Wave integrated circuits and systems.

Download or read book Voltage Controlled Oscillator Phase Noise Reduction Technique written by Céline E. M. Fletcher and published by . This book was released on 2006 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book VLSI Noise Processing Circuits Theoretical Bases and Implementations written by Hongjiang Song and published by Lulu.com. This book was released on 2015-06-08 with total page 390 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book covers various VLSI circuit noise effects and VLSI noise processing circuit implementations. All materials are organized in am unified framework with VLSI noise modeling and noise processing circuits across various VLSI signal domains.

Download or read book Evolving Technologies for Computing Communication and Smart World written by Pradeep Kumar Singh and published by Springer Nature. This book was released on 2020-11-25 with total page 536 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents best selected papers presented at the International Conference on Evolving Technologies for Computing, Communication and Smart World (ETCCS 2020) held on 31 January–1 February 2020 at C-DAC, Noida, India. It is co-organized by Southern Federal University, Russia; University of Jan Wyżykowski (UJW), Polkowice, Poland; and CSI, India. C-DAC, Noida received funding from MietY during the event. The technical services are supported through EasyChair, Turnitin, MailChimp and IAC Education. The book includes current research works in the areas of network and computing technologies, wireless networks and Internet of things (IoT), futuristic computing technologies, communication technologies, security and privacy.

Download or read book Injection Locked Synchronous Oscillators SOs and Reference Injected Phase locked Loops PLL RIs written by Feiran Lei and published by . This book was released on 2017 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt: Synchronization plays an important and fundamental role as the timing basis in digital, analog, and RF integrated circuits (ICs), where Phase-Locked Loops (PLLs) find their versatile applications. The noise sources in a traditional PLL are mainly divided into two groups: noise before the low-pass loop filter such as the noise in the reference signal, Frequency Divider (FD), Phase Frequency Detector/Charge Pump (PFD/CP); and noise after the filter such as the Voltage Controlled Oscillator (VCO) noise and the loop filter noise. The output phase noise of the PLL is the combined contribution from these two equally important in-band and out-band noise sources. This research studies the effect of the synchronization in the PLL on the decoupling of the 3dB bandwidths for different noise sources to achieve an optimum phase noise and improved locking behavior with an attenuated reference signal injection (RI) into a ring-type delay-line Voltage Controlled Synchronous Oscillator (VCSO). This dissertation begins with the development of a generalized phase model for both LC-type and ring-type VCSOs. Next, the relationship between the device baseband noise (flicker and thermal noise) and a ring-type oscillator's phase noise is derived. In addition, noise shaping functions are introduced to describe signal injection into the VCSO to achieve suppression of the oscillator in-band phase noise. Then, the transient and steady-state behavior of a Charge-Pump PLL-RI are explained with nonlinear differential equations and the phase-plane method. The nonlinear phase equation is linearized for the small-signal condition and the s-domain noise transfer functions as well as noise bandwidths are derived for different noise sources in the major components of the PLL-RI. The effect of the loop parameters and the injection strength on the output phase noise, loop settling time, and lock in range is analyzed. The analysis is verified by the SPICE simulation and experimental results from a Charge-Pump PLL-RI using a 1GHz VCSO in GlobalFoundries 130nm standard CMOS technology. The designed VCSO occupies a core area of 0.005 mm$^2$, and operates from 0.5GHz to 1.7GHz. The PLL-RI, for first-harmonic locking applications, has a core area of 0.02 mm$^2$ and consumes 2.6mW power. When a 30dB attenuation is applied, phase noise at 1MHz and 10MHz offset are reduced from -118.8dBc/Hz (PLL) to -121.9dBc/Hz (PLL-RI), and -102.3dBc/Hz (PLL) to -128.3dBc/Hz (PLL-RI), respectively, with an integrated RMS jitter from 10KHz to 30MHz of 1.55ps. Finally, another application of the PLL-RI as an integer-N frequency synthesizer is studied and tested. The PLL-RI based frequency synthesizer with the ring-type VCSO achieves comparable noise performance with LC type PLLs, but uses a much smaller chip area and features lower power consumption. To summarize, this dissertation has throughly evaluated an oscillator and a PLL under small signal injection. Compared with the traditional PLL, the all-CMOS PLL-RI offers faster settling time, wider lock in range, and ability to decouple 3dB bandwidths for different noise sources to achieve an optimum noise performance. The applications of PLL-RIs can be extended to analog, digital, and RF systems for different timing schemes.

Download or read book Phase Noise and Frequency Stability in Oscillators written by Enrico Rubiola and published by Cambridge University Press. This book was released on 2010-06-10 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Presenting a comprehensive account of oscillator phase noise and frequency stability, this practical text is both mathematically rigorous and accessible. An in-depth treatment of the noise mechanism is given, describing the oscillator as a physical system, and showing that simple general laws govern the stability of a large variety of oscillators differing in technology and frequency range. Inevitably, special attention is given to amplifiers, resonators, delay lines, feedback, and flicker (1/f) noise. The reverse engineering of oscillators based on phase-noise spectra is also covered, and end-of-chapter exercises are given. Uniquely, numerous practical examples are presented, including case studies taken from laboratory prototypes and commercial oscillators, which allow the oscillator internal design to be understood by analyzing its phase-noise spectrum. Based on tutorials given by the author at the Jet Propulsion Laboratory, international IEEE meetings, and in industry, this is a useful reference for academic researchers, industry practitioners, and graduate students in RF engineering and communications engineering.

Download or read book Phase Noise in Signal Sources written by W. P. Robins and published by IET. This book was released on 1984 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book contains a thorough treatment of phase noise, its relationship to thermal noise and associated subjects such as frequency stability. The design of low phase noise signal sources, including oscillators and synthesisers, is explained and in many cases the measured phase noise characteristics are compared with the theoretical predictions. Full theoretical treatments are combined with physical explanations, helpful comments, examples of manufactured equipment and practical tips. Overall system performance degradations due to unwanted phase noise are fully analysed for radar systems and for both analogue and digital communications systems. Specifications for the acceptable phase noise performance of signal sources to be used in such systems are derived after allowing for both technical and economic optimisation. The mature engineer whose mathematics may be somewhat rusty will find that every effort has been made to use the lowest level of mathematical sophistication that is compatible with a full analysis and every line of each mathematical argument has been set out so that the book may be read and understood even in an armchair. Due to a novel approach to the analytical treatment of narrow band noise, the book is simple to understand while simultaneously carrying the analysis further in several areas than any existing publication.

Download or read book RF and Microwave Power Amplifier Design written by Andrei Grebennikov and published by McGraw Hill Professional. This book was released on 2004-09-15 with total page 433 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is a rigorous tutorial on radio frequency and microwave power amplifier design, teaching the circuit design techniques that form the microelectronic backbones of modern wireless communications systems. Suitable for self-study, corporate training, or Senior/Graduate classroom use, the book combines analytical calculations and computer-aided design techniques to arm electronic engineers with every possible method to improve their designs and shorten their design time cycles.

Download or read book The Designer s Guide to High Purity Oscillators written by Emad Eldin Hegazi and published by Springer Science & Business Media. This book was released on 2006-07-18 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt: try to predict it using mathematical expressions. His heuristic model without mathematical proof is almost universally accepted. However, it entails a c- cuit specific noise factor that is not known a priori and so is not predictive. In this work, we attempt to address the topic of oscillator design from a diff- ent perspective. By introducing a new paradigm that accurately captures the subtleties of phase noise we try to answer the question: 'why do oscillators behave in a particular way?' and 'what can be done to build an optimum design?' It is also hoped that the paradigm is useful in other areas of circuit design such as frequency synthesis and clock recovery. In Chapter 1, a general introduction and motivation to the subject is presented. Chapter 2 summarizes the fundamentals of phase noise and timing jitter and discusses earlier works on oscillator's phase noise analysis. Chapter 3 and Chapter 4 analyze the physical mechanisms behind phase noise generation in current-biased and Colpitts oscillators. Chapter 5 discusses design trade-offs and new techniques in LC oscillator design that allows optimal design. Chapter 6 and Chapter 7 discuss a topic that is typically ignored in oscillator design. That is flicker noise in LC oscillators. Finally, Chapter 8 is dedicated to the complete analysis of the role of varactors both in tuning and AM-FM noise conversion.

Download or read book Optoelectronic Frequency Stabilization Techniques in Forced Oscillators written by Li Zhang and published by . This book was released on 2014 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt: Forced frequency stabilization techniques of self-injection locking (SIL) and self-phase locked loop (SPLL) have been demonstrated to be effective for phase noise reduction. In SIL scheme, a portion of the oscillator output is directly injected back to the oscillator after passing through a long delay while in SPLL, the delayed signal is used to compare against a non-delayed signal to generate an error signal which will be used to control the oscillator frequency. The published literature and reported patent investigations has revealed that SIL and SPLL are only being used independently, whereas in this thesis SILPLL is introduced for the first time by simultaneously combining of SIL and SPLL; the control theory based modeling of SIL, SPLL, and SILPLL techniques are developed and the simulation results have indicated that phase noise of the oscillation signal is enhanced as injection locking removes phase noise in far-out offset frequency, while phase locking effectively reduces the close-in to carrier phase noise. Optimum delay length and delay parameters are identified for the most effective performance. Both SIL and SPLL techniques require a low noise figure and long fiber optic delay lines to provide substantial phase noise reduction, but the long delay generates undesirable sidemodes that are seen within 20kHz to 200kHz offset to carrier for fiber optic delays from 10km to 1km and are difficult to be filtered out by electrical filters. Therefore, forced oscillation technique employing short and long delay is proposed to suppress these sidemodes. In this dissertation, experimental results of a dual self-injection locking (DSIL) and dual self-phase locked loop (DSPLL) employing short and long delays have been proposed for this sidemode suppression, while maintaining same amount of phase noise reduction provided by the long delay. As an example of DSIL, sidemode suppression of more than 20dB for fiber delay links of 1km and 5km have been experimentally achieved compared to a single 5km long SIL with a phase noise reduction of 40dB (in reference to free running oscillator) at 10kHz offset from carrier for both standard OEO and a self-seeded structure with electrical 3 port oscillator at 10GHz; for a DSPLL fiber delay lines of 3km and 5km, a sidemode suppression of 29dB have also been experimentally achieved compared to SPLL of 5km with a phase noise reduction of 30dB (in reference to free running oscillator) at 10kHz offset from carrier. For the case of SPLL, phase locking performance of a 10GHz oscillation signal are experimentally evaluated as various methods of phase locking are compared. Experiment results that demonstrate the benefit of SILPLL incorporating dual delays have been reported for the first time corroborating analytical predictions. A dual SILPLL (DSILPLL) system with 3km and 5km fiber delay has been implemented, and measured phase noise reduction of 40dB provided by DSILPLL is the same as DSIL at 10kHz offset. However, at 1kHz offset, DSILPLL provides a phase noise reduction of 52dB which is 11dB better than DSIL; at 300Hz offset, DSILPLL provides 70dB reduction while DSIL provides only 42dB reduction. In summary, DSILPLL is effective for sidemode suppression and phase noise reduction, where SPLL using tunable MZM with DSIL of a VCO provides the best performance improvement over other investigated topologies. Due to the advances in low noise electronics and broad bandwidth of the optical components used in the DSILPLL system, the DSILPLL technique has the potential to create highly stable RF oscillators approaching 100GHz.