Design of 2.4 GHZ CMOS Frontend for Bluetooth

Design of 2.4 GHZ CMOS Frontend for Bluetooth

Author: Florian Krug

Publisher: diplom.de

ISBN: 9783832441944

Category: Technology & Engineering

Page: 75

View: 142

Inhaltsangabe:Abstract: The Bluetooth wireless technology is the worlds new short-range RF transmission standard for small form factor, low-cost, short-range radio links between portable or desktop devices. The technology promises to eliminate the confusion of cables, connectors and protocols confounding communications between today high tech products. In the first step a 2.45 GHz Low Noise Amplifier (LNA), intended for use in a Bluetooth receiver, has been designed in a standard 0.18 um CMOS process. The amplifier provides a simulated switchable forward voltage gain of +16 / -7.7 dB with a simulated noise Figure (NF) of only 3 dB while drawing 2.8 mA from a 1.8 V supply. The die area of the LNA (pads included) is 0.79 mm2. In the second step a 2.45 GHz Power Amplifier (PA), also intended for the Bluetooth standard, has been designed in the same 0.18 um CMOS process as for the LNA. The class-A PA achieves a simulated forward gain (S21) of 23 dB and a simulated output 1 dB compression point (P1dB ) of 5.5 dBm, with a power-added efficiency (PAE) of 23 % while drawing 15.8 mA from a 1.8 V supply. The die area of the PA (pads included) is 2.1 mm2. Inhaltsverzeichnis:Table of Contents: 1.Introduction1 1.1Motivation1 1.2Organization2 2.The Bluetooth standard3 2.1Bluetooth as branding-name3 2.2Bluetooth RF requirements4 2.3System design4 2.3.1Receiver architectures4 2.3.2Transmitter architectures6 3.RF CMOS technology9 3.1The foundry9 3.1.1Technology overview9 3.1.2Process Characteristic9 3.2Design Flow10 3.2.1Cadence10 3.2.2SpectreRF10 4.Integrated spiral inductors11 4.1View and physical dimension of spiral11 4.2Model for on-chip spiral inductors12 5.Low Noise Amplifier13 5.1Architecture choices13 5.1.1Recent studies13 5.1.2LNA Architectures13 5.1.3Architecture properties14 5.1.4Architecture choice14 5.2A little piece of theory15 5.2.1Standard MOS noise model15 5.2.2Noise Figure16 5.2.3Input impedance16 5.2.4Voltage Gain18 5.2.5Stability19 5.2.6Noise Figure20 5.3Design approach for the LNA21 5.3.1Circuit topology21 5.3.2RF circuit design strategy21 5.3.3DC operating point design strategy23 5.3.4Input matching24 5.3.5Voltage gain25 5.3.6Noise Figure26 5.3.7Stability27 5.3.8LNA core schematics with component values28 5.4Design approach for the attenuation path of the LNA29 5.4.1Circuit Topology29 5.4.2Switching network29 5.4.3Input matching31 5.4.4Attenuation32 5.4.5Switchable LNA schematics with [...]

Applications of Artificial Intelligence Techniques in Engineering

Applications of Artificial Intelligence Techniques in Engineering

Author: Hasmat Malik

Publisher: Springer

ISBN: 9789811318221

Category: Technology & Engineering

Page: 647

View: 878

The book is a collection of high-quality, peer-reviewed innovative research papers from the International Conference on Signals, Machines and Automation (SIGMA 2018) held at Netaji Subhas Institute of Technology (NSIT), Delhi, India. The conference offered researchers from academic and industry the opportunity to present their original work and exchange ideas, information, techniques and applications in the field of computational intelligence, artificial intelligence and machine intelligence. The book is divided into two volumes discussing a wide variety of industrial, engineering and scientific applications of the emerging techniques.

Design of Low-Voltage CMOS Switched-Opamp Switched-Capacitor Systems

Design of Low-Voltage CMOS Switched-Opamp Switched-Capacitor Systems

Author: Vincent S.L. Cheung

Publisher: Springer Science & Business Media

ISBN: 9781475737011

Category: Technology & Engineering

Page: 192

View: 214

This volume emphasizes the design and development of advanced switched-opamp architectures and techniques for low-voltage low-power switched-capacitor systems. It presents a novel multi-phase switched-opamp technique together with new system architectures that are critical in improving significantly the performance of switched-capacitor systems at low supply voltages.

Digital Radio System Design

Digital Radio System Design

Author: Grigorios Kalivas

Publisher: John Wiley & Sons

ISBN: 0470748370

Category: Technology & Engineering

Page: 472

View: 256

A systematic explanation of the principles of radio systems, Digital Radio System Design offers a balanced treatment of both digital transceiver modems and RF front-end subsystems and circuits. It provides an in-depth examination of the complete transceiver chain which helps to connect the two topics in a unified system concept. Although the book tackles such diverse fields it treats them in sufficient depth to give the designer a solid foundation and an implementation perspective. Covering the key concepts and factors that characterise and impact radio transmission and reception, the book presents topics such as receiver design, noise and distortion. Information is provided about more advanced aspects of system design such as implementation losses due to non-idealities. Providing vivid examples, illustrations and detailed case-studies, this book is an ideal introduction to digital radio systems design. Offers a balanced treatment of digital modem and RF front-end design concepts for complete transceivers Presents a diverse range of topics related to digital radio design including advanced transmission and synchronization techniques with emphasis on implementation Provides guidance on imperfections and non-idealities in radio system design Includes detailed design case-studies incorporating measurement and simulation results to illustrate the theory in practice

Analog Circuit Design

Analog Circuit Design

Author: Michiel Steyaert

Publisher: Springer Science & Business Media

ISBN: 9780306479519

Category: Technology & Engineering

Page: 442

View: 944

In the 11th edition in this successful series, the topics are structured-mixed-mode design, multi-bit sigma-delta converters and short range RF circuits. The book provides valuable information and excellent overviews of analogue circuit design, CAD and RF systems.

Recent Trends in Communication and Electronics

Recent Trends in Communication and Electronics

Author: Sanjay Sharma

Publisher: CRC Press

ISBN: 9781000431704

Category: Technology & Engineering

Page: 570

View: 415

The Department of Electronics and Communication Engineering of KIET Group of Institutions, Delhi-NCR organized the 4th International Conference ICCE-2020 during November 28-29, 2020. Information compiled in this book is based on the 114 research papers of excellent quality covering different domains of Electronics and Communication Engineering, Computer Science Engineering, Information Technology, Electrical Engineering, Electronics and Instrumentation Engineering. The subject areas treated in the book are: Satellite, Radar and Microwave Techniques, Secure, Smart, and Reliable Networks, Next Generation Networks, Devices & Circuits, Signal & Image Processing, New Emerging Technologies, having the central focus on Recent Trends in Communication & Electronics (ICCE-2020). In addition, a few themes based on Special Sessions have also been conducted in ICCE-2020. The objective of the book resulting from the 4th International Conference on Recent Trends in Communication & Electronics (ICCE-2020) is to provide a resource for the study and research work for an interested audience comprising of researchers, students, audience, and practitioners in the areas of Communications & Computing Systems.

Ultra Low Power Transceiver for Wireless Body Area Networks

Ultra Low Power Transceiver for Wireless Body Area Networks

Author: Jens Masuch

Publisher: Springer Science & Business Media

ISBN: 9783319000985

Category: Technology & Engineering

Page: 122

View: 752

Wireless Body Area Networks (WBANs) are expected to promote new applications for the ambulatory health monitoring of chronic patients and elderly population, aiming to improve their quality of life and independence. These networks are composed by wireless sensor nodes (WSNs) used for measuring physiological variables (e.g., glucose level in blood or body temperature) or controlling therapeutic devices (e.g., implanted insulin pumps). These nodes should exhibit a high degree of energy autonomy in order to extend their battery lifetime or even make the node supply to rely on harvesting techniques. Typically, the power budget of WSNs is dominated by the wireless link and, hence, many efforts have been directed during the last years toward the implementation of power efficient transceivers. Because of the short range (typically no more than a few meters) and low data rate (typically in between 10 kb/s and 1 Mb/s), simple communication protocols can be employed. One of these protocols, specifically tailored for WBAN applications, is the Bluetooth low energy (BLE) standard. This book describes the challenges and solutions for the design of ultra-low power transceivers for WBANs applications and presents the implementation details of a BLE transceiver prototype. Coverage includes not only the main concepts and architectures for achieving low power consumption, but also the details of the circuit design and its implementation in a standard CMOS technology.

Wireless Sensor Networks

Wireless Sensor Networks

Author: Suraiya Tarannum

Publisher: BoD – Books on Demand

ISBN: 9789533073255

Category: Technology & Engineering

Page: 352

View: 873

The importance and ubiquity of wireless networks in the modern age justifies the depth and scope of the chapters included in this book, with its special focus on sensors. Topics covered include MAC protocols, with one contribution offering a literature review on them. Energy efficiency is also important, with several chapters addressing cooperative beamforming, modern spatial-diversity techniques and MEMS. Hardware issues are addressed by a batch of chapters, on extending network coverage areas, CMOS RF transceivers, the use of an accelerometer sensor module and a fall-detection monitoring system and a couple of contributions on hierarchical paradigms in wireless sensor networks. More mathematical approaches are also included, with chapters on data aggregation tree construction and distributed localization algorithms.

Low-Power CMOS Design for Wireless Transceivers

Low-Power CMOS Design for Wireless Transceivers

Author: Alireza Zolfaghari

Publisher: Springer Science & Business Media

ISBN: 9781475737875

Category: Technology & Engineering

Page: 106

View: 169

This comprehensive treatment of the challenges in low-power RF CMOS design deals with the design and implementation of low- power wireless transceivers in a standard digital CMOS process. It addresses trade-offs and techniques that improve performance, from the component level to the architectural level.

Highly Integrated Low Power Radars

Highly Integrated Low Power Radars

Author: Sergio Saponara

Publisher: Artech House

ISBN: 9781608076659

Category: Technology & Engineering

Page: 232

View: 687

In recent years, advances in radio detection and ranging technology, sustained by new achievements in the fields of signal processing and electronic components, have permitted the adoption of radars in many civil and defense applications. This resource discusses how highly integrated radar has been adopted by several new markets such as contactless vital sign monitoring (heart rate, breath rate) or harbour traffic control, as well as several applications for vehicle driver assistance. You are provided with scenarios, applications, and requirements, while focusing on the trade-offs between flexibility, programmability, power consumption, size and weight, and complexity.

Ultra-low Voltage Low Power Active-RC Filters and Amplifiers for Low Energy RF Receivers

Ultra-low Voltage Low Power Active-RC Filters and Amplifiers for Low Energy RF Receivers

Author: Lucas Compassi Severo

Publisher: Springer Nature

ISBN: 9783030901035

Category: Electronic books

Page: 143

View: 555

This book presents innovative strategies to implement ultra-low voltage (ULV) and low power active circuits used in low energy RF receivers. The authors demonstrate that the use of single-stage amplifiers with the input negative transconductance compensation is a key strategy to allow the operation at low voltage levels with reduced power dissipation. Also, some design methodologies, based on the CMOS transistor operation point, are analyzed and a powerful design methodology is described for this kind of circuit. Readers will be enabled to implement the techniques described to design communication circuits with low power dissipation, useful in a variety of applications, including IoT/IoE devices. Discusses in detail ultra-low voltage communication circuit design for low energy RF receivers; Describes circuits that are compatible with the low-cost well-established, submicron CMOS processes; Presents a novel and intuitive circuit design methodology to implement the described techniques.