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English (3)


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2012 (3)

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Book
Solutions and Applications of Scattering, Propagation, Radiation and Emission of Electromagnetic Waves
Authors: ---
ISBN: 9535162683 9535108387 Year: 2012 Publisher: IntechOpen

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Abstract

In this book, a wide range of different topics related to analytical as well as numerical solutions of problems related to scattering, propagation, radiation, and emission in different medium are discussed. Design of several devices and their measurements aspects are introduced. Topics related to microwave region as well as Terahertz and quasi-optical region are considered. Bi-isotropic metamaterial in optical region is investigated. Interesting numerical methods in frequency domain and time domain for scattering, radiation, forward as well as reverse problems and microwave imaging are summarized. Therefore, the book will satisfy different tastes for engineers interested for example in microwave engineering, antennas, and numerical methods.


Book
Electromagnetic Vibration Energy Harvesting Devices : Architectures, Design, Modeling and Optimization
Authors: ---
ISBN: 9400799551 940072943X 9786613712295 9400729448 1280861983 Year: 2012 Publisher: Dordrecht : Springer Netherlands : Imprint: Springer,

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Electromagnetic vibration transducers are seen as an effective way of harvesting ambient energy for the supply of sensor monitoring systems. Different electromagnetic coupling architectures have been employed but no comprehensive comparison with respect to their output performance has been carried out up to now. Electromagnetic Vibration Energy Harvesting Devices introduces an optimization approach which is applied to determine optimal dimensions of the components (magnet, coil and back iron). Eight different commonly applied coupling architectures are investigated. The results show that correct dimensions are of great significance for maximizing the efficiency of the energy conversion. A comparison yields the architectures with the best output performance capability which should be preferably employed in applications. A prototype development is used to demonstrate how the optimization calculations can be integrated into the design–flow. Electromagnetic Vibration Energy Harvesting Devices targets the designer of electromagnetic vibration transducers who wishes to have a greater in-depth understanding for maximizing the output performance.


Book
Electromagnetic Fields and Waves in Fractional Dimensional Space
Authors: --- ---
ISBN: 3642253571 364225358X 9786613575463 1280397543 Year: 2012 Publisher: Berlin, Heidelberg : Springer Berlin Heidelberg : Imprint: Springer,

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This book presents the concept of fractional dimensional space applied to the use of electromagnetic fields and waves.  It demonstrates the advantages in studying  the behavior of electromagnetic fields and waves in fractal media. The book presents novel fractional space generalization of the differential electromagnetic equations as well as a new form of vector differential operators in fractional space. Using these modified vector differential operators, the classical Maxwell's electromagnetic equations are worked out. The Laplace's, Poisson's and Helmholtz's equations in fractional space are derived by using modified vector differential operators.

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