Adaptive Rf Front Ends For Hand Held Applications

Author: Andre van Bezooijen
Editor: Springer Science & Business Media
ISBN: 9789048199358
File Size: 63,30 MB
Format: PDF, Mobi
Read: 9745
Download

The RF front-end – antenna combination is a vital part of a mobile phone because its performance is very relevant to the link quality between hand-set and cellular network base-stations. The RF front-end performance suffers from changes in operating environment, like hand-effects, that are often unpredictable. Adaptive RF Front-Ends for Hand-Held Applications presents an analysis on the impact of fluctuating environmental parameters. In order to overcome undesired behavior two different adaptive control methods are treated that make RF frond-ends more resilient: adaptive impedance control, and adaptive power control. Several adaptive impedance control techniques are discussed, using a priori knowledge on matching network properties, in order to simplify robust 2-dimensional control. A generic protection concept is presented, based on adaptive power control, which improves the ruggedness of a power amplifier or preserves its linearity under extremes. It comprises over-voltage, over-temperature, and under-voltage protection.

Radio Frequency Identification

Author: Mamun Bin Ibne Reaz
Editor: BoD – Books on Demand
ISBN: 9535111434
File Size: 31,29 MB
Format: PDF
Read: 4949
Download

RFID based application creates tremendous new business opportunities such as the support of independent living of elderly and disabled persons, efficient supply chains, efficient anti-counterfeiting and better environmental monitoring. RFID data management, scalable information systems, business process reengineering, and evaluating investments are emerging as significant technical challenges to applications underpinned by new developments in RFID technology. This book presents the contributions from world leading experts on the latest developments and state-of-the-art results in the RFID field to address these challenges. The book offers a comprehensive and systematic description of technologies, architectures, and methodologies of various efficient, secure, scalable, and reliable RFID and RFID based applications.

Tunable Rf Components And Circuits

Author: Jeffrey L. Hilbert
Editor: CRC Press
ISBN: 1498718922
File Size: 63,16 MB
Format: PDF, Docs
Read: 5333
Download

An Industry Perspective on Key Tunable Technologies and Applications Tunable RF Components and Circuits: Applications in Mobile Handsets provides a technical introduction to the state of the art in tunable radio frequency (RF) components, circuits, and applications and discusses the foundational work that has been done to date. Leading practitioners in the field share their expertise on tunable devices in mobile handset applications. Through these practical viewpoints, readers discover how to use tunable RF techniques and devices to develop successful product designs. A substantial portion of the book focuses on antennas and antenna tuning, reflecting the dominance of the antenna tuning application in today’s commercial market for tunable RF. The book explains how RF-microelectromechanical systems (RF-MEMS), barium strontium titinate (BST), silicon-on-insulator (SOI) field effect transistors (FETs), and high-performance complementary metal oxide semiconductors (CMOS) are used as enabling technologies for tunable functions in current and next-generation radio architectures. The book also describes power amplifier envelope tracking, an emerging and important technique for improving efficiency; presents a network operator’s perspective on the evolution of the handset front end; and explores emerging approaches to production testing of wireless devices.

Wireless Radio Frequency Standards And System Design Advanced Techniques

Author: Cornetta, Gianluca
Editor: IGI Global
ISBN: 1466600845
File Size: 45,67 MB
Format: PDF, Kindle
Read: 6636
Download

Radio-frequency (RF) integrated circuits in CMOS technology are gaining increasing popularity in the commercial world, and CMOS technology has become the dominant technology for applications such as GPS receivers, GSM cellular transceivers, wireless LAN, and wireless short-range personal area networks based on IEEE 802.15.1 (Bluetooth) or IEEE 802.15.4 (ZigBee) standards. Furthermore, the increasing interest in wireless technologies and the widespread of wireless communications has prompted an ever increasing demand for radio frequency transceivers. Wireless Radio-Frequency Standards and System Design: Advanced Techniques provides perspectives on radio-frequency circuit and systems design, covering recent topics and developments in the RF area. Exploring topics such as LNA linearization, behavioral modeling and co-simulation of analog and mixed-signal complex blocks for RF applications, integrated passive devices for RF-ICs and baseband design techniques and wireless standards, this is a comprehensive reference for students as well as practicing professionals.

Adaptive Low Power Circuits For Wireless Communications

Author: Aleksandar Tasic
Editor: Springer Science & Business Media
ISBN: 1402052502
File Size: 66,28 MB
Format: PDF
Read: 1687
Download

With a billion – soon to be two billion - cellular telephones in circulation, the next challenge is to make cellular radio functions adaptive to their environment. This book provides a comprehensive theoretical framework for optimizing performance, discussing joint optimization of Noise Figure and Input Intercept Point in receiver systems. Also examined are original techniques to optimize voltage controlled oscillators and low-noise amplifiers, minimizing power consumption while maintaining adequate system performance.

Integrated Circuits For Wireless Communications

Author: Asad A. Abidi
Editor: Wiley-IEEE Press
ISBN:
File Size: 67,31 MB
Format: PDF, ePub, Mobi
Read: 4267
Download

Electrical Engineering Integrated Circuits for Wireless Communications High-frequency integrated circuit design is a booming area of growth that is driven not only by the expanding capabilities of underlying circuit technologies like CMOS, but also by the dramatic increase in wireless communications products that depend on them. Integrated Circuits for Wireless Communications includes seminal and classic papers in the field and is the first all-in-one resource to address this increasingly important topic. Internationally known and highly regarded in the field, editors Asad Abidi, Paul Gray, and Robert G. Meyer have meticulously compiled more than 100 papers and articles covering the very latest high-level integrated circuits techniques and solutions in use today. Integrated Circuits for Wireless Communications is devised expressly to provide IC design engineers, system architects, and integrators with a practical understanding of subjects ranging from architecture choices for integrated transceivers to actual circuit designs in all viable IC technologies, such as bipolar, CMOS, and GaAs. The papers selected represent a breadth of coverage and level of expertise that is simply unmatched in the field. Topics covered include: Radio architectures Receivers Transmitters and transceivers Power amplifiers and RF switches Oscillators Passive components Systems applications

International Conference On Trends In Communications

Author:
Editor: IEEE
ISBN:
File Size: 58,62 MB
Format: PDF
Read: 9352
Download


17th Ieee International Conference On Micro Electro Mechanical Systems

Author: IEEE International Conference on Micro Electro Mechanical Systems 17, 2004, Maastricht, The Netherlands
Editor:
ISBN: 9780780382657
File Size: 25,41 MB
Format: PDF, Kindle
Read: 1279
Download


Annual Report Of Tokyo University Of Agriculture And Technology

Author: Tōkyō Nōkō Daigaku
Editor:
ISBN:
File Size: 57,48 MB
Format: PDF, Kindle
Read: 8907
Download


Multifunctional Adaptive Microwave Circuits And Systems

Author: Michael Bernard Steer
Editor: SciTech Publishing
ISBN:
File Size: 63,98 MB
Format: PDF, Kindle
Read: 6765
Download

This book is an introduction to Multi-functional, Adaptive Radio Radar and Sensor systems. The book presents the findings of the five year project entitled "MARRS: Multifunctional Adaptive Radio and Sensors" that ran from 2001 to 2008. It presents a systematic approach to the system level design required to develop MARRS technology.

Microwave Journal

Author:
Editor:
ISBN:
File Size: 30,96 MB
Format: PDF, Kindle
Read: 7581
Download


Subsurface Sensing Technologies And Applications Ii

Author: Society of Photo-optical Instrumentation Engineers
Editor: Society of Photo Optical
ISBN:
File Size: 31,75 MB
Format: PDF, ePub, Mobi
Read: 692
Download


Dissertation Abstracts International

Author:
Editor:
ISBN:
File Size: 30,14 MB
Format: PDF, ePub, Docs
Read: 8715
Download


2000 Ieee Radio Frequency Integrated Circuits Rfic Symposium

Author: IEEE Microwave Theory and Techniques Society
Editor: IEEE Standards Office
ISBN: 9780780362819
File Size: 53,84 MB
Format: PDF, ePub, Mobi
Read: 6062
Download


Ieice Transactions On Electronics

Author:
Editor:
ISBN:
File Size: 77,31 MB
Format: PDF, Docs
Read: 8451
Download


Cognitive Radio Technology

Author: Steven Kinney
Editor: Newnes
ISBN:
File Size: 57,86 MB
Format: PDF, Kindle
Read: 765
Download

Publisher description

Wireless Personal Communications

Author: Theodore S. Rappaport
Editor: Springer
ISBN:
File Size: 80,71 MB
Format: PDF, ePub, Docs
Read: 4191
Download

Wireless Personal Communications: Trends and Challenges presents a wide range of current research activities in wireless communications, reflecting the rapid growth and maturity of the wireless industry. Although overcoming the propagation characteristics of the wireless channel will remain the unique problem confronted by wireless system designers, a plethora of innovative techniques for equalization and interference rejection have emerged. New applications of wireless systems have also been proposed and implemented, ranging from high data rate paging to video transmission. Research in code division multiple access (CDMA) has begun to move from performance evaluation to system design. Research also continues on a broad range of simulation, coding and multiple access techniques. As the wireless community has expanded, there has been a need to draw upon expertise in seemingly disjoint disciplines such as semiconductor design and fabrication, and human factors. In this book, the large number of chapters with multiple authors and from multiple institutions is indicative of the collaborative nature of wireless research, necessitated by the increasing complexity and breadth of wireless systems. Wireless Personal Communications: Trends and Challenges is organized into five sections, each focusing on a distinct set of issues in wireless communications. It is an excellent reference and may be used as a text for advanced courses on wireless communications.

Portable Design

Author:
Editor:
ISBN:
File Size: 72,17 MB
Format: PDF, ePub, Docs
Read: 7004
Download


Advances In Umts Technology

Author: J. C. Bic
Editor: Hermes Science Publications
ISBN:
File Size: 57,31 MB
Format: PDF, ePub
Read: 3087
Download

The Universal Mobile Telecommunications System (UMTS), the third generation mobile system, is coming into use in Japan and Europe. The main benefits - spectrum-efficient radio interfaces offering high capacity, large bandwidths, the ability to interconnect with IP-based networks, and flexibility of mixed services with variable data - offer exciting prospects for the deployment of these networks. This work addresses several issues, emphasizing future evolution to improve performance for the fourth generation, and outlines key topics in this area of enormous innovation and commercial investment.