Low Power UWB CMOS Radar Sensors

Low Power UWB CMOS Radar Sensors PDF Author: Hervé Paulino
Publisher: Springer Science & Business Media
ISBN: 1402084099
Category : Technology & Engineering
Languages : en
Pages : 239

Book Description
Low Power UWB CMOS Radar Sensors deals with the problem of designing low cost CMOS radar sensors. The radar sensor uses UWB signals in order to obtain a reasonable target separation capability, while maintaining a maximum signal frequency below 2 GHz. This maximum frequency value is well within the reach of current CMOS technologies. The use of UWB signals means that most of the methodologies used in the design of circuits and systems that process narrow band signals, can no longer be applied. Low Power UWB CMOS Radar Sensors provides an analysis between the interaction of UWB signals, the antennas and the processing circuits. This analysis leads to some interesting conclusions on the types of antennas and types of circuits that should be used. A methodology to compare the noise performance of UWB processing circuits is also derived. This methodology is used to analyze and design the constituting circuits of the radar transceiver. In order to validate the design methodology a CMOS prototype is designed and experimentally evaluated.

Low-Power High-Speed ADCs for Nanometer CMOS Integration

Low-Power High-Speed ADCs for Nanometer CMOS Integration PDF Author: Zhiheng Cao
Publisher: Springer Science & Business Media
ISBN: 1402084501
Category : Technology & Engineering
Languages : en
Pages : 95

Book Description
Low-Power High-Speed ADCs for Nanometer CMOS Integration is about the design and implementation of ADC in nanometer CMOS processes that achieve lower power consumption for a given speed and resolution than previous designs, through architectural and circuit innovations that take advantage of unique features of nanometer CMOS processes. A phase lock loop (PLL) clock multiplier has also been designed using new circuit techniques and successfully tested. 1) A 1.2V, 52mW, 210MS/s 10-bit two-step ADC in 130nm CMOS occupying 0.38mm2. Using offset canceling comparators and capacitor networks implemented with small value interconnect capacitors to replace resistor ladder/multiplexer in conventional sub-ranging ADCs, it achieves 74dB SFDR for 10MHz and 71dB SFDR for 100MHz input. 2) A 32mW, 1.25GS/s 6-bit ADC with 2.5GHz internal clock in 130nm CMOS. A new type of architecture that combines flash and SAR enables the lowest power consumption, 6-bit >1GS/s ADC reported to date. This design can be a drop-in replacement for existing flash ADCs since it does require any post-processing or calibration step and has the same latency as flash. 3) A 0.4ps-rms-jitter (integrated from 3kHz to 300MHz offset for >2.5GHz) 1-3GHz tunable, phase-noise programmable clock-multiplier PLL for generating sampling clock to the SAR ADC. A new loop filter structure enables phase error preamplification to lower PLL in-band noise without increasing loop filter capacitor size.

Handbook of Ultra-Wideband Short-Range Sensing

Handbook of Ultra-Wideband Short-Range Sensing PDF Author: Jürgen Sachs
Publisher: John Wiley & Sons
ISBN: 3527651837
Category : Technology & Engineering
Languages : en
Pages : 802

Book Description
Ranging from the theoretical basis of UWB sensors via implementation issues to applications, this much-needed book bridges the gap between designers and appliers working in civil engineering, biotechnology, medical engineering, robotic, mechanical engineering, safety and homeland security. From the contents: * History * Signal and systems in time and frequency domain * Propagation of electromagnetic waves (in frequency and time domain) * UWB-Principles * UWB-antennas and applicators * Data processing * Applications

Omnidirectional Inductive Powering for Biomedical Implants

Omnidirectional Inductive Powering for Biomedical Implants PDF Author: Bert Lenaerts
Publisher: Springer Science & Business Media
ISBN: 1402090757
Category : Technology & Engineering
Languages : en
Pages : 222

Book Description
Omnidirectional Inductive Powering for Biomedical Implants investigates the feasibility of inductive powering for capsule endoscopy and freely moving systems in general. The main challenge is the random position and orientation of the power receiving system with respect to the emitting magnetic field. Where classic inductive powering assumes a predictable or fixed alignment of the respective coils, the remote system is now free to adopt just any orientation while still maintaining full power capabilities. Before elaborating on different approaches towards omnidirectional powering, the design and optimisation of a general inductive power link is discussed in all its aspects. Special attention is paid to the interaction of the inductive power link with the patient’s body. Putting theory into practice, the implementation of an inductive power link for a capsule endoscope is included in a separate chapter.

Structured Analog CMOS Design

Structured Analog CMOS Design PDF Author: Danica Stefanovic
Publisher: Springer Science & Business Media
ISBN: 1402085737
Category : Technology & Engineering
Languages : en
Pages : 290

Book Description
Structured Analog CMOS Design describes a structured analog design approach that makes it possible to simplify complex analog design problems and develop a design strategy that can be used for the design of large number of analog cells. It intentionally avoids treating the analog design as a mathematical problem, developing a design procedure based on the understanding of device physics and approximations that give insight into parameter interdependences. The basic design concept consists in analog cell partitioning into the basic analog structures and sizing of these basic analog structures in a predefined procedural design sequence. The procedural design sequence ensures the correct propagation of design specifications, the verification of parameter limits and the local optimization loops. The proposed design procedure is also implemented as a CAD tool that follows this book.

Highly Integrated Low Power Radars

Highly Integrated Low Power Radars PDF Author: Sergio Saponara
Publisher: Artech House
ISBN: 1608076652
Category : Technology & Engineering
Languages : en
Pages : 232

Book Description
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 Wideband

Ultra Wideband PDF Author: Mohammad Abdul Matin
Publisher: BoD – Books on Demand
ISBN: 953510781X
Category : Technology & Engineering
Languages : en
Pages : 374

Book Description
Ultra wideband (UWB) has advanced and merged as a technology, and many more people are aware of the potential for this exciting technology. The current UWB field is changing rapidly with new techniques and ideas where several issues are involved in developing the systems. Among UWB system design, the UWB RF transceiver and UWB antenna are the key components. Recently, a considerable amount of researches has been devoted to the development of the UWB RF transceiver and antenna for its enabling high data transmission rates and low power consumption. Our book attempts to present current and emerging trends in-research and development of UWB systems as well as future expectations.

Ultra-Low-Power Short-Range Radios

Ultra-Low-Power Short-Range Radios PDF Author: Patrick P. Mercier
Publisher: Springer
ISBN: 3319147145
Category : Technology & Engineering
Languages : en
Pages : 394

Book Description
This book explores the design of ultra-low-power radio-frequency integrated circuits (RFICs), with communication distances ranging from a few centimeters to a few meters. The authors describe leading-edge techniques to achieve ultra-low-power communication over short-range links. Many different applications are covered, ranging from body-area networks to transcutaneous implant communications and smart-appliance sensor networks. Various design techniques are explained to facilitate each of these applications.

A New Family of CMOS Cascode-Free Amplifiers with High Energy-Efficiency and Improved Gain

A New Family of CMOS Cascode-Free Amplifiers with High Energy-Efficiency and Improved Gain PDF Author: Ricardo Filipe Sereno Póvoa
Publisher: Springer
ISBN: 3319952072
Category : Technology & Engineering
Languages : en
Pages : 141

Book Description
This book addresses the need for energy-efficient amplifiers, providing gain enhancement strategies, suitable to run in parallel with lower supply voltages, by introducing a new family of single-stage cascode-free amplifiers, with proper design, optimization, fabrication and experimental evaluation. The authors describe several topologies, using the UMC 130 nm CMOS technology node with standard-VT devices, for proof-of-concept, achieving results far beyond what is achievable with a classic single-stage folded-cascode amplifier. Readers will learn about a new family of circuits with a broad range of applications, together with the familiarization with a state-of-the-art electronic design automation methodology used to explore the design space of the proposed circuit family.

Biopotential Readout Circuits for Portable Acquisition Systems

Biopotential Readout Circuits for Portable Acquisition Systems PDF Author: Refet Firat Yazicioglu
Publisher: Springer Science & Business Media
ISBN: 1402090935
Category : Technology & Engineering
Languages : en
Pages : 164

Book Description
Biopotential Readout Circuits for Portable Acquisition Systems describes one of the main building blocks of such miniaturized biomedical signal acquisition systems. The focus of this book is on the implementation of low-power and high-performance integrated circuit building blocks that can be used to extract biopotential signals from conventional biopotential electrodes. New instrumentation amplifier architectures are introduced and their design is described in detail. These amplifiers are used to implement complete acquisition demonstrator systems that are a stepping stone towards practical miniaturized and low-power systems.