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Author: Stephan Carel Blaakmeer
Publisher:
ISBN: 9789036530293
Category :
Languages : en
Pages : 158
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Book Description
Author: Stephan Carel Blaakmeer
Publisher:
ISBN: 9789036530293
Category :
Languages : en
Pages : 158
Get Book Here
Book Description
Author: Xin Guan
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
Ultra-Wideband (UWB) technology has become one of the hottest topics in wireless communications, for it provides cost-effective, power-efficient, high bandwidth solution for relaying data in the immediate area (up to 10 meters). This work demonstrates two different solutions for the RF front-end designs in the UWB receivers, one is distributed topology, and the other is based on traditional lumped element topology. The distributed amplifier is one of the attractive candidates for UWB Low Noise Amplifier (LNA). The design, analysis and operation of the distributed amplifiers will be presented. A distributed amplifier is designed with Coplanar Waveguide (CPW) transmission lines in 0.25-[micron] CMOS process for time domain UWB applications. New design techniques and new topologies are developed to enhance the power-efficiency and reduce the chip area. A compact and high performance distributed amplifier with Patterned Grounded Shield (PGS) inductors is developed in 0.25-[micron] CMOS process. The amplifier has a measurement result of 7.2dB gain, 4.2-6dB noise figure, and less than -10dB return loss through 0-11GHz. A new distributed amplifier implementing cascade common source gain cells is presented in 0.18-[micron] CMOS. The new amplifier demonstrates a high gain of 16dB at a power consumption of 100mW, and a gain of 10dB at a low power consumption of 19mW. A UWB LNA utilizing resistive shunt feedback technique is reported in 0.18-[micron] CMOS process. The measurement results of the UWB LNA demonstrate a maximum gain of 10.5dB and a noise figure of 3.3-4.5dB from 3-9.5GHz, while only consuming 9mW power. Based on the distributed amplifier and resistive shunt-feedback amplifier designs, two UWB RF front-ends are developed. One is a distributed LNA-Mixer. Unlike the conventional distributed mixer, which can only deliver low gain and high noise figure, the proposed distributed LNA-Mixer demonstrates 12-14dB gain,4-5dB noise figure and higher than 10dB return loss at RF and LO ports over 2-16GHz. To overcome the power consumption and chip area problems encountered in distributed circuits, another UWB RF front-end is also designed with lumped elements. This front-end, employing resistive shunt-feedback technique into its LNA design, can achieve a gain of 12dB and noise figure of 8-10dB through 3-10GHz, the return loss of less than -10dB from 3- 10GHz at RF port, and less than -7dB at LO port, while only consuming 25mA current from 1.8V voltage supply.
Author: Miguel D. Fernandes
Publisher: Springer
ISBN: 3319189204
Category : Technology & Engineering
Languages : en
Pages : 115
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Book Description
This book demonstrates how to design a wideband receiver operating in current mode, in which the noise and non-linearity are reduced, implemented in a low cost single chip, using standard CMOS technology. The authors present a solution to remove the transimpedance amplifier (TIA) block and connect directly the mixer’s output to a passive second-order continuous-time Σ∆ analog to digital converter (ADC), which operates in current-mode. These techniques enable the reduction of area, power consumption, and cost in modern CMOS receivers.
Author: Kenichi Okada
Publisher: Springer Science & Business Media
ISBN: 144198514X
Category : Technology & Engineering
Languages : en
Pages : 224
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Book Description
This book describes the state-of-the-art in RF, analog, and mixed-signal circuit design for Software Defined Radio (SDR). It synthesizes for analog/RF circuit designers the most important general design approaches to take advantage of the most recent CMOS technology, which can integrate millions of transistors, as well as several real examples from the most recent research results.
Author: Aminghasem Safarian
Publisher: Springer Science & Business Media
ISBN: 1402067224
Category : Technology & Engineering
Languages : en
Pages : 97
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Book Description
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.
Author: Fakhfakh, Mourad
Publisher: IGI Global
ISBN: 1466666285
Category : Technology & Engineering
Languages : en
Pages : 488
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Book Description
Improving the performance of existing technologies has always been a focal practice in the development of computational systems. However, as circuitry is becoming more complex, conventional techniques are becoming outdated and new research methodologies are being implemented by designers. Performance Optimization Techniques in Analog, Mix-Signal, and Radio-Frequency Circuit Design features recent advances in the engineering of integrated systems with prominence placed on methods for maximizing the functionality of these systems. This book emphasizes prospective trends in the field and is an essential reference source for researchers, practitioners, engineers, and technology designers interested in emerging research and techniques in the performance optimization of different circuit designs.
Author: Francisco Aznar
Publisher: Springer Science & Business Media
ISBN: 1461434645
Category : Technology & Engineering
Languages : en
Pages : 204
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Book Description
This book describes optical receiver solutions integrated in standard CMOS technology, attaining high-speed short-range transmission within cost-effective constraints. These techniques support short reach applications, such as local area networks, fiber-to-the-home and multimedia systems in cars and homes. The authors show how to implement the optical front-end in the same technology as the subsequent digital circuitry, leading to integration of the entire receiver system in the same chip. The presentation focuses on CMOS receiver design targeting gigabit transmission along a low-cost, standardized plastic optical fiber up to 50m in length. This book includes a detailed study of CMOS optical receiver design – from building blocks to the system level.
Author: Johan Janssens
Publisher: Springer Science & Business Media
ISBN: 0306473046
Category : Technology & Engineering
Languages : en
Pages : 267
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Book Description
CMOS Cellular Receiver Front-Ends: from Specification to Realization deals with the design of the receive path of a highly-integrated CMOS cellular transceiver for the GSM-1800 cellular system. The complete design trajectory is covered, starting from the documents describing the standard down to the systematic development of CMOS receiver ICs that comply to the standard. The design of CMOS receivers is tackled at all abstraction levels: from architecture level, via circuit level, down to the device level, and the other way around. The theoretical core of the book discusses the fundamental and more advanced aspects of RF CMOS design. It focuses specifically on all aspects of the design of high-performance CMOS low-noise amplifiers.
Author: Joy Laskar
Publisher: John Wiley & Sons
ISBN: 047147486X
Category : Technology & Engineering
Languages : en
Pages : 240
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Book Description
Architectures BABAK MATINPOUR and JOY LASKAR * Describes the actual implementation of receiver architectures from the initial design to an IC-based product * Presents many tricks-of-the-trade not usually covered in textbooks * Covers a range of practical issues including semiconductor technology selection, cost versus performance, yield, packaging, prototype development, testing, and analysis * Discusses architectures that are employed in modern broadband wireless systems
Author: Florian Krug
Publisher: diplom.de
ISBN: 3832441948
Category : Technology & Engineering
Languages : en
Pages : 79
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Book Description
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 [...]
