Download or read book Absorption and Transmission of Electromagnetic Waves written by E. MEYER and published by . This book was released on 1957 with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Absorption and Transmission of Electromagnetic Waves Phase K Multi layer Absorber written by H. W. HELBERG and published by . This book was released on 1961 with total page 1 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Applications of Electromagnetic Waves written by Reza K. Amineh and published by MDPI. This book was released on 2021-01-20 with total page 242 pages. Available in PDF, EPUB and Kindle. Book excerpt: Electromagnetic (EM) waves carry energy through propagation in space. This radiation associates with entangled electric and magnetic fields which must exist simultaneously. Although all EM waves travel at the speed of light in vacuum, they cover a wide range of frequencies called the EM spectrum. The various portions of the EM spectrum are referred to by various names based on their different attributes in the emission, transmission, and absorption of the corresponding waves and also based on their different practical applications. There are no certain boundaries separating these various portions, and the ranges tend to overlap. Overall, the EM spectrum, from the lowest to the highest frequency (longest to shortest wavelength) contains the following waves: radio frequency (RF), microwaves, millimeter waves, terahertz, infrared, visible light, ultraviolet, X-rays, and gamma rays. This Special Issue consists of sixteen papers covering a broad range of topics related to the applications of EM waves, from the design of filters and antennas for wireless communications to biomedical imaging and sensing and beyond.
Download or read book absorption and Transmission of Electromagnetic Waves Phase M Part A Combination of Magnetic Layer and Wedge Type Absorbers written by R. POTTEL and published by . This book was released on 1962 with total page 1 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Waves written by Mike Goldsmith and published by Oxford University Press, USA. This book was released on 2018 with total page 161 pages. Available in PDF, EPUB and Kindle. Book excerpt: From sound waves to gravitational waves, and from waves of light to crashing rollers on the ocean, Mike Goldsmith explores the fundamental features shared by all waves in the natural world, and considers the range of phenomena resulting from wave motion, including reflection, diffraction, and polarization in light, and beats and echoes in sound.
Download or read book Absorption and Transmission of Electromagnetic Waves Phase J Investigation of Interdependence of Absorber Design Parameters broadband Magnetic Layer Absorbers with Small Thickness written by H. W. HELBERG and published by . This book was released on 1961 with total page 1 pages. Available in PDF, EPUB and Kindle. Book excerpt: Two ferrite materals, Ferramic E and Ferramic E 1960, were used as magnetc layer absorbers. The measured reflection coefficients were below 10% in the frequency anges 4.2 x 10 to the 7th to 3.8 x 10 to the 8th and 2.4 x 10 to the 8th to 7.6 x 10 to the 8th, respectively. The thicknesses of layer were 0.88 cm and 0.5 cm respectively. These measurements confirmed the reflection coefficients calculated from the relaive dielectric constant and relative permeability. Various materials were tested with respect to their applicability as absorber material. (Author).
Download or read book Tour of the Electromagnetic Spectrum written by Ginger Butcher and published by Government Printing Office. This book was released on 2016 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book University Physics written by Samuel J. Ling and published by . This book was released on 2017-12-19 with total page 818 pages. Available in PDF, EPUB and Kindle. Book excerpt: University Physics is designed for the two- or three-semester calculus-based physics course. The text has been developed to meet the scope and sequence of most university physics courses and provides a foundation for a career in mathematics, science, or engineering. The book provides an important opportunity for students to learn the core concepts of physics and understand how those concepts apply to their lives and to the world around them. Due to the comprehensive nature of the material, we are offering the book in three volumes for flexibility and efficiency. Coverage and Scope Our University Physics textbook adheres to the scope and sequence of most two- and three-semester physics courses nationwide. We have worked to make physics interesting and accessible to students while maintaining the mathematical rigor inherent in the subject. With this objective in mind, the content of this textbook has been developed and arranged to provide a logical progression from fundamental to more advanced concepts, building upon what students have already learned and emphasizing connections between topics and between theory and applications. The goal of each section is to enable students not just to recognize concepts, but to work with them in ways that will be useful in later courses and future careers. The organization and pedagogical features were developed and vetted with feedback from science educators dedicated to the project. VOLUME II Unit 1: Thermodynamics Chapter 1: Temperature and Heat Chapter 2: The Kinetic Theory of Gases Chapter 3: The First Law of Thermodynamics Chapter 4: The Second Law of Thermodynamics Unit 2: Electricity and Magnetism Chapter 5: Electric Charges and Fields Chapter 6: Gauss's Law Chapter 7: Electric Potential Chapter 8: Capacitance Chapter 9: Current and Resistance Chapter 10: Direct-Current Circuits Chapter 11: Magnetic Forces and Fields Chapter 12: Sources of Magnetic Fields Chapter 13: Electromagnetic Induction Chapter 14: Inductance Chapter 15: Alternating-Current Circuits Chapter 16: Electromagnetic Waves
Download or read book Microwave Absorbing Materials written by Yuping Duan and published by CRC Press. This book was released on 2016-10-14 with total page 382 pages. Available in PDF, EPUB and Kindle. Book excerpt: With the phenomenal development of electromagnetic wave communication devices and stealth technology, electromagnetic wave absorbing materials have been attracting attention as antielectromagnetic interference slabs, stealth materials, self-concealing technology, and microwave darkrooms. This book starts with the fundamental theory of electromagnetic wave absorption in loss medium space, followed by a discussion of different microwave absorbents, such as manganese dioxide, iron-based composite powder, conductive polyaniline, barium titanate powder, and manganese nitride. Then, structural absorbing materials are explored, including multilayer materials, new discrete absorbers, microwave absorption coatings, cement-based materials, and structural pyramid materials. Many of the graphics demonstrate not only the principles of physics and experimental results but also the methodology of computing. The book will be useful for graduate students of materials science and engineering, physics, chemistry, and electrical and electronic engineering; researchers in the fields of electromagnetic functional materials and nanoscience; and engineers in the fields of electromagnetic compatibility and stealth design.
Download or read book Absorption and Transmission of Electromagnetic Waves Phase M Part B combination of Magnetic Layer and Graphite Foil Absorbers written by H. W. HELBERG and published by . This book was released on 1962 with total page 1 pages. Available in PDF, EPUB and Kindle. Book excerpt: The electromagnetic properties of a ferrite layer placed in front of a metal plate are investigated. For this purpose the reflection coefficient is measured as a function of the frequency with the thickness of the sample as parameter. The measurements are carrie out in a coaxial line with Ferramic E 1960 as test substance. In order to increase the bandwidth at larger t ickness of layer the ferrite is electrically shunted with a resistivity foil and the reflection coefficient of this combination is again measured as a function of the frequency. Parameters are the thickness of the ferrite layer and the surface resistivity of the foil. With this combination the operating frequency range is extended towards lower frequencies. Without resistivity foil the reflection coefficient remains about 10% in the entire range. (Author).
Download or read book Metamaterial Electromagnetic Wave Absorbers written by Willie J. Padilla and published by Morgan & Claypool Publishers. This book was released on 2022-01-24 with total page 199 pages. Available in PDF, EPUB and Kindle. Book excerpt: Electromagnetic metamaterials are a family of shaped periodic materials which achieve extraordinary scattering properties that are difficult or impossible to achieve with naturally occurring materials. This book focuses on one such feature of electromagnetic metamaterials—the theory, properties, and applications of the absorption of electromagnetic radiation. We have written this book for undergraduate and graduate students, researchers, and practitioners, covering the background and tools necessary to engage in the research and practice of metamaterial electromagnetic wave absorbers in various fundamental and applied settings. Given the growing impact of climate change, the call for innovations that can circumvent the use of conventional energy sources will be increasingly important. As we highlight in Chapter 6, the absorption of radiation with electromagnetic metamaterials has been used for energy harvesting and energy generation, and will help to reduce reliance on fossil fuels. Other applications ranging from biochemical sensing to imaging are also covered. We hope this book equips interested readers with the tools necessary to successfully engage in applied metamaterials research for clean, sustainable energy. This book consists of six chapters. Chapter 1 provides an introduction and a brief history of electromagnetic wave absorbers; Chapter 2 focuses on several theories of perfect absorbers; Chapter 3 discusses the scattering properties achievable with metamaterial absorbers; Chapter 4 provides significant detail on the fabricational processes; Chapter 5 discusses examples of dynamical absorbers; and Chapter 6 highlights applications of metamaterial absorbers.
Download or read book Theory of Reflection of Electromagnetic and Particle Waves written by John Lekner and published by Springer Science & Business Media. This book was released on 1987-02-28 with total page 298 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is written for scientists and engineers whose work involves wave reflec tion or transmission. Most of the book is written in the language of electromagnetic theory, but, as the title suggests, many of the results can be applied to particle waves, specifically to those satisfying the Schr6dinger equation. The mathematical connection between electromagnetic s (or TE) waves and quantum particle waves is established in Chapter 1. The main results for s waves are translated into quantum mechanical language in the Appendix. There is also a close analogy between acoustic waves and electromagnetic p (or TM) waves, as shown in Section 1-4. Thus the book, though primarily intended for those working in optics, microwaves and radio, will be of use to physicists, chemists and electrical engineers studying reflection and transmission of particles at potential barriers. The tech niques developed here can also be used by those working in acoustics, ocean ography and seismology. Chapter 1 is recommended for all readers: it introduces reflection phenomena, defines the notation, and previews (in Section 1-6) the contents of the rest of the book. This preview will not be duplicated here. We note only that applied topics do appear: two examples are the important phenomenon of attenuated total reflection in Chapter 8, and the reflectivity of multilayer dielectric mirrors in Chapter 12. The subject matter is restricted to linear classical electrodynamics in non-magnetic media, and the corresponding particle analogues.
Download or read book Absorption and Transmission of Electromagnetic Waves Phase H Dipole resonance absorber for Wide Angles of Incidence written by E. G. NEUMANN and published by . This book was released on 1961 with total page 1 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reduction of the reflection coefficient of dipole absorbers for oblique incidence of electromagnetic waves was investigated. To complete the theory of reflection by the additional system of dipoles, the propagation of electromagnetic waves in an artificial absorbing medium consisting of infinitely long parallel wires with small conductivity was studied. Measurements were made with centimeter waves using a parallel-platetransmission line to determine the equivalent propagation constants of the medium by scanning the electric field with respect to amplitude and phase. The propagation properties of the parallel wire medium are explained with a theory deduced from an analogy to line-theory. (Author).
Download or read book Absorption and Transmission of Electromagnetic Waves Phase L Resonance Absorbers with Absorbing Structures in Or Behind a Metal Plate written by S. LUHMANN and published by . This book was released on 1961 with total page 1 pages. Available in PDF, EPUB and Kindle. Book excerpt: A number of resonance absorbers for electromagnetic waves are described, which serve for the reflectionless coating of a metal wall. The absorbers are characterized by the fact that the absorbing structure is placed behind the metal wall to be protected. Coupling of the incident wave to the absorbing structure is made through small openings in the metal plate. Rectangular, triangular and circular ring slots were used as coupling holes. With a wedge absorber behind the metal plate the reflection coefficient r was below 0.1 within a frequency interval with a relative bandwidth of about 10%. Absorbing strip-line components were developed in order to achieve a thin absorbing structure and to compensate the frequency dependence of the impedance of the coupling holes. With these components an operating range r
Download or read book Electromagnetic Wave Absorbers written by Youji Kotsuka and published by John Wiley & Sons. This book was released on 2019-09-18 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt: Addresses the importance of EM wave absorbers and details pertinent theory, design, and applications Demands for various EM-wave absorbers are rapidly increasing along with recent trends toward complicated electromagnetic environments and development of higher-frequency communication equipment, including AI technology. This book provides a broad perspective on electromagnetic wave absorbers, as well as discussion of specific types of absorbers, their advantages and disadvantages, their applications, and performance verification. Electromagnetic Wave Absorbers: Detailed Theories and Applications presents the theory behind wave absorbers and their practical usage in design of EM-wave absorber necessary particularly for EMC environments, and similar applications. The first half of the book contains the foundations of electromagnetic wave engineering, specifically the transmission line theories necessary for EM-wave absorber analysis, the basic knowledge of reflection, transmission, and absorption of electromagnetic waves, derivation of Maxwell's equations and computer analysis. The second half describes special mediums, absorber application examples, simplified methods of absorber design, autonomously controllable EM-wave absorber, and more. This valuable text: Provides detailed explanations of basic theory and applied theory for understanding EM-wave absorbers Discusses the material constant measurement methods of EM-wave absorption characteristics that are necessary for designing EM-wave absorbers Includes examples of novel EM-wave absorber configurations Electromagnetic Wave Absorbers: Detailed Theories and Applications is an ideal read for researchers and students concerned with electromagnetic wave engineering. It will also appeal to computer software engineers and electromagnetic field theory researchers.
Download or read book Absorption and Transmission of Electromagnetic Waves Phase C Absorption of Electromagnetic Cm waves in Anisotropic Media written by Reinhard Pottel and published by . This book was released on 1957 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt: With ferrite materials available up to date, equalness of permeability and dielectric constant cannot be achieved for frequencies above 1000 Mc/s without application of static magnetic fields. The reason is given by the large spreading of the natural resonant frequencies of different crystallites or domains. This spreading can be reduced but cannot be completely avoided in principle. Using static magnetic fields, equalness of permeability and dielectric constant in ferrites can be achieved up to frequencies of about 5000 Mc/s. The relative width of the frequency band within which the reflection coefficient is below 0.1 then is about 15%. A widening of this range is necessarily coupled with a reduction of the limiting frequency. For equal permeability and dielectric constant the attenuation along one vacuum wave length at 5000 Mc/s is about 500 dB. Because of the difficulties arising in homogeneously magnetizing larger plates of ferrite material, the discussed method cannot be used for large absorber arrangements. (Author).
Download or read book Propulsion written by Kazuo Matsuuchi and published by BoD – Books on Demand. This book was released on 2021-12-15 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt: Almost all animals move around frequently in space. Their aim is to walk and fly in search of food or to propagate their species. Thus, changing positions is important for creatures’ survival and maintaining the environment. As such, this book examines movement with a focus on force and propulsion. Chapters cover topics including rocket engines, electric propulsion, mechanisms of force, and more.
