Choose an application

• Reference Manager
• EndNote
• RefWorks (Direct export to RefWorks)

Spectacular observational breakthroughs, particularly by the WMAP satellite, have led to a new epoch of CMB science long after its original discovery. Taking a physical approach, the authors of this volume, which was first published in 2006, probe the problem of the 'darkness' of the Universe: the origin and evolution of dark energy and matter in the cosmos. Starting with the observational background of modern cosmology, they provide an accessible review of this fascinating yet complex subject. Topics discussed include the kinetics of the electromagnetic radiation in the Universe, the ionization history of cosmic plamas, the origin of primordial perturbations in light of the inflation paradigm, and the formation of anisotropy and polarization of the CMB. This fascinating review will be valuable to advanced students and researchers in cosmology.

Cosmic background radiation. --- Microwaves. --- Micro-ondes --- Hertzian waves --- Electric waves --- Electromagnetic waves --- Geomagnetic micropulsations --- Radio waves --- Shortwave radio --- Background radiation, Cosmic --- Cosmic microwave background --- Cosmic microwave radiation --- Microwave background --- Extraterrestrial radiation

Choose an application

• Reference Manager
• EndNote
• RefWorks (Direct export to RefWorks)

Semiconductor Modeling: For Simulating Signal, Power, and Electromagnetic Integrity gives designers and engineers a broad view of using semiconductor models to design high-speed circuit boards. Most issues in the field of designing high-frequency circuits, from the beginning of modeling and simulation using EDA tools to future trends, are discussed and integrated. The main technical focus of Semiconductor Modeling: For Simulating Signal, Power, and Electromagnetic Integrity is the use of simulation to help solve practical engineering problems. The book draws on over 90 years of diverse technical experience and brings together theory, tools, components, software, and experience to help engineers create successful electronic products. This book will help engineers understand how to approach problem solving while designing high-speed circuits. In particular, it helps engineers in the following areas: · Encountering non-existent, incomplete, and erroneous semiconductor circuit models. · Applying EDA tools to achieve practical designs despite model limitations. · Grasping the basic high-speed digital, RF, and EMC design concepts that guide design intent. · Applying EDA tools to cutting-edge digital technology. · Working with suppliers, CAD team members, and others. · Understanding the processes and procedures that enable and enhance the design process. The book presents the material in a manner that is helpful to circuit and product design engineers who have little or no specialized knowledge of high-speed digital design or semiconductors. .

Semiconductors --- Electric conductivity --- Mathematical models. --- Conductivity, Electric --- Free electron theory of metals --- Transport theory --- Systems engineering. --- Computer aided design. --- Microwaves. --- Electronics. --- Engineering mathematics. --- Computer engineering. --- Circuits and Systems. --- Computer-Aided Engineering (CAD, CAE) and Design. --- Microwaves, RF and Optical Engineering. --- Electronics and Microelectronics, Instrumentation. --- Mathematical and Computational Engineering. --- Electrical Engineering. --- Engineering systems --- System engineering --- Engineering --- Industrial engineering --- System analysis --- Engineering analysis --- Mathematical analysis --- Electrical engineering --- Physical sciences --- Hertzian waves --- Electric waves --- Electromagnetic waves --- Geomagnetic micropulsations --- Radio waves --- Shortwave radio --- CAD (Computer-aided design) --- Computer-assisted design --- Computer-aided engineering --- Design --- Computers --- Design and construction --- Mathematics

Choose an application

• Reference Manager
• EndNote
• RefWorks (Direct export to RefWorks)

Feedforward Amplifiers for Wideband Communication Systems has been possible thanks to the research carried out throughout several years in the field of the linearization techniques applied to digital communication systems, particularly to those with high spectral efficient modulation techniques. The wireless telecommunications are more and more demanded for the Information Society. Such requirements are reflected as a great many of communication standards with specific coverage applications and, above all, with higher and higher data transmission rates. The electromagnetic spectrum, nevertheless, is a scarce asset that can not be spread and despite the increasingly tendency to transmit in higher frequencies, the bandwidths assigned to each application are always exploited to the limit. Feedforward Amplifiers for Wideband Communication Systems merges in the need of developing frequency efficient modulations with widespread codification techniques that result in wideband communication systems, with strict regulations in the usable frequency bandwidths and tight restrictions in the spurious emissions over the remaining spectrum. The radio frequency transmitters do not remain impassive to those changes, especially the power amplifiers, which efficiency and linearity directly determines the correct performance of the entire transmission system. The linearity specifications are commonly fixed by the telecommunication standards while the efficiency rates directly strikes the commercial viability of these transmitters. Feedforward Amplifiers for Wideband Communication Systems tries to put into practice the Feedforward linearization technique, aimed at improving either the linearity or efficiency parameters of power amplifiers, just intended for achieving a trade-off between the distortion specifications of the telecommunication standards and the efficiency enhancement of the transmission systems, which set, respectively, the linearity and the output level requirements of power amplifiers. This challenge is enshrined in one of the present wideband communication systems, but all the recommended design guidelines are perfectly reusable in the future wideband applications.

Broadband amplifiers. --- Broadband communication systems. --- Wideband communication systems --- Telecommunication systems --- Wide-band amplifiers --- Amplifiers (Electronics) --- Electronics. --- Microwaves. --- Systems engineering. --- Computer engineering. --- Electronics and Microelectronics, Instrumentation. --- Microwaves, RF and Optical Engineering. --- Circuits and Systems. --- Electrical Engineering. --- Computers --- Engineering systems --- System engineering --- Engineering --- Industrial engineering --- System analysis --- Hertzian waves --- Electric waves --- Electromagnetic waves --- Geomagnetic micropulsations --- Radio waves --- Shortwave radio --- Electrical engineering --- Physical sciences --- Design and construction --- Microelectronics. --- Optical engineering. --- Electronic circuits. --- Electrical engineering. --- Electric engineering --- Electron-tube circuits --- Electric circuits --- Electron tubes --- Electronics --- Mechanical engineering --- Microminiature electronic equipment --- Microminiaturization (Electronics) --- Microtechnology --- Semiconductors --- Miniature electronic equipment

Choose an application

• Reference Manager
• EndNote
• RefWorks (Direct export to RefWorks)

Aims to edit the ensemble of the contributions and research results in this field that have been presented during the 5th International Workshop on Multi-Carrier Spread-Spectrum (MC-SS 2005), held in Oberpfaffenhofen, Germany.

Spread spectrum communications --- Telecommunication --- Telecommunication. --- Microwaves. --- Computer engineering. --- Computer network architectures. --- Engineering. --- Communications Engineering, Networks. --- Microwaves, RF and Optical Engineering. --- Electrical Engineering. --- Computer Systems Organization and Communication Networks. --- Complexity. --- Construction --- Industrial arts --- Technology --- Architectures, Computer network --- Network architectures, Computer --- Computer architecture --- Computers --- Hertzian waves --- Electric waves --- Electromagnetic waves --- Geomagnetic micropulsations --- Radio waves --- Shortwave radio --- Electric communication --- Mass communication --- Telecom --- Telecommunication industry --- Telecommunications --- Communication --- Information theory --- Telecommuting --- Design and construction --- Electrical engineering. --- Optical engineering. --- Computer organization. --- Computational complexity. --- Organization, Computer --- Electronic digital computers --- Mechanical engineering --- Complexity, Computational --- Electronic data processing --- Machine theory --- Electric engineering --- Engineering

Choose an application

• Reference Manager
• EndNote
• RefWorks (Direct export to RefWorks)

This book uniquely combines new advances in the electromagnetic and the circuits&systems theory. It integrates both fields regarding computational aspects of common interest. Emphasized subjects are those methods which mimic brain-like and electrodynamic behaviour; among these are cellular neural networks, chaos and chaotic dynamics, attractor-based computation and stream ciphers. The book contains carefully selected contributions from the Symposium CCN2005. Pictures from the bestowal of Honorary Doctorate degrees to Leon O. Chua and Leopold B. Felsen are included. .

Neural networks (Computer science) --- Electromagnetic theory --- Mathematics --- Light, Electromagnetic theory of --- Electric fields --- Magnetic fields --- Computer network architectures. --- Microwaves. --- Systems engineering. --- Classical Electrodynamics. --- Theoretical, Mathematical and Computational Physics. --- Computer Systems Organization and Communication Networks. --- Microwaves, RF and Optical Engineering. --- Circuits and Systems. --- Engineering systems --- System engineering --- Engineering --- Industrial engineering --- System analysis --- Hertzian waves --- Electric waves --- Electromagnetic waves --- Geomagnetic micropulsations --- Radio waves --- Shortwave radio --- Architectures, Computer network --- Network architectures, Computer --- Computer architecture --- Design and construction --- Optics. --- Electrodynamics. --- Mathematical physics. --- Computer organization. --- Optical engineering. --- Electronic circuits. --- Electron-tube circuits --- Electric circuits --- Electron tubes --- Electronics --- Mechanical engineering --- Organization, Computer --- Electronic digital computers --- Physical mathematics --- Physics --- Dynamics --- Light