Download or read book Ferrite Ferroelectric Composite Materials for Microwave and Millimeter Wave Device Applications written by and published by . This book was released on 2000 with total page 21 pages. Available in PDF, EPUB and Kindle. Book excerpt: A series of composite ferroelectric ferrite materials has been fabricated in order to investigate the basic properties which may lead to new microwave capabilities. The ferrite component was a Trans-Tech TT2-111 NiZn ferrite obtained in powder form. The ferroelectric component consisted of Paratek Type A and Type B Parascan(Trademark) materials. The ferroelectric component was nominally barium strontium titanate. The composite materials were prepared with 0.3 - 50 wt% ferrite, along with a 100 wt% ferrite material fired from the TT2-111 powder. These materials were used for low frequency and microwave dielectric constant and loss measurements, static magnetic characterization, ferromagnetic resonance, and high field microwave susceptibility measurements. The measurements indicate that such composites can, in fact, be fabricated and that the basic properties can be tuned through the mixing. Although much more materials development remains, the samples demonstrate that one can obtain a field tunable magnetic response through the ferrite component and a variable dielectric constant through the mixing. The specific microwave data show that the static magnetic properties scale with the ferrite content for loadings above 10 wt% or so. The microwave response data appear to scale with the ferrite loading, except for one critical result at 25 wt% loading. Further work is needed to determine the extent of a possible response enhancement for the ferrite based on the field concentrations induced by the ferroelectric. Further work is also needed to optimize the processing parameters and specific materials choices to obtain low dielectric loss and narrow ferromagnetic resonance linewidths.
Download or read book Ferrites and Multiferroics written by Gagan Kumar Bhargava and published by Springer Nature. This book was released on 2021-12-16 with total page 215 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book highlights the fundamentals of ferrites and multiferroic materials with special attention to their structure, types, and properties. It presents a comprehensive survey about ferrite and multiferroic materials, in areas significant to research and development in academia as well as in industry. The book discusses various types of methods applied for their synthesis and characterizations. This book is concerned with the fascinating class of materials with the promise for wide-ranging applications, including electromagnets, magnetic fluid hyperthermia, antenna applications, memory devices, switching circuits, bio-medical applications, actuators, magnetic field sensors and water purification, etc.
Download or read book Microwave Materials and Applications written by Mailadil T. Sebastian and published by John Wiley & Sons. This book was released on 2017-03-02 with total page 1000 pages. Available in PDF, EPUB and Kindle. Book excerpt: The recent rapid progress in wireless telecommunication, including the Internet of Things, 5th generation wireless systems, satellite broadcasting, and intelligent transport systems has increased the need for low-loss dielectric materials and modern fabrication techniques. These materials have excellent electrical, dielectric, and thermal properties and have enormous potential, especially in wireless communication, flexible electronics, and printed electronics. Microwave Materials and Applications discusses the methods commonly employed for measuring microwave dielectric properties, the various attempts reported to solve problems of materials chemistry and crystal structure, doping, substitution, and composite formation, highlighting the processing techniques, morphology influences, and applications of microwave materials whilst summarizing many of the recent technical research accomplishments in the area of microwave dielectrics and applications Chapters examine: Oxide ceramics for dielectric resonators and substrates HTCC, LTCC and ULTCC tapes for substrates Polymer ceramic composites for printed circuit boards Elastomer-ceramic composites for flexible electronics Dielectric inks EMI shielding materials Microwave ferrites A comprehensive Appendix presents the fundamental properties for more than 4000 low-loss dielectric ceramics, their composition, crystal structure, and their microwave dielectric properties. Microwave Materials and Applications presents a comprehensive view of all aspects of microwave materials and applications, making it useful for scientists, industrialists, engineers, and students working on current and emerging applications of wireless communications and consumer electronics.
Download or read book Handbook of Magnetic Materials written by and published by Elsevier. This book was released on 2015-11-24 with total page 462 pages. Available in PDF, EPUB and Kindle. Book excerpt: Handbook of Magnetic Materials covers the expansion of magnetism over the last few decades and its applications in research, notably the magnetism of several classes of novel materials that share with truly ferromagnetic materials the presence of magnetic moments. Volume 24 of the Handbook of Magnetic Materials, much like the preceding volumes, has a dual purpose. With contributions from leading authorities in the field, it includes a variety of self-contained introductions to a given area in the field of magnetism without requiring recourse to the published literature. The book is an ideal reference for scientists active in magnetism research, providing readers with novel trends and achievements in magnetism. Each article contains an extensive description given in graphical, as well as, tabular form, with much emphasis placed on the discussion of the experimental material within the framework of physics, chemistry, and material science. - Comprises topical review articles written by leading authorities - Includes a variety of self-contained introductions to a given area in the field of magnetism without requiring recourse to the published literature - Introduces given topics in the field of magnetism - Describes novel trends and achievements in magnetism
Download or read book Modern Ferrites Volume 2 written by Vincent G. Harris and published by John Wiley & Sons. This book was released on 2022-11-14 with total page 421 pages. Available in PDF, EPUB and Kindle. Book excerpt: MODERN FERRITES, Volume 2 A robust exploration of the basic principles of ferrimagnetic and their applications In Modern Ferrites: Volume 2, renowned researcher and educator, Vincent G. Harris delivers a comprehensive overview of ferrimagnetic phenomena and discussions of select applications of modern ferrite materials in emerging technologies and applications. Volume 2 explores fundamental properties of ferrite systems, including their structure, chemistry, and magnetism, as well as practical applications, such as permanent magnets; inductors, inverters, and filters; and their use in emerging applications as metamaterials, multiferroics, and biomedical technologies. In addition to the properties of ferrites, the included resources explore the processing, structure, and property relationships in ferrites as nanoparticles, thin and thick films, compacts, and crystals. The authors discuss how these relationships are key to realizing practical device applications laying the foundation for next generation communications, radar, sensing, and biomedical technologies. This volume includes: A comprehensive review of ferrite discoveries and impacts upon ancient cultures, their scientific evolution, and societal benefits; Discussion of the origins of magnetism in ferrimagnetic oxides including superexchange theory, GKA-rules, and recent developments in density functional theory; In-depth examination of ferrite power conversion and conditioning components and their processing as low temperature co-fired ceramics; Ferrite-based electromagnetic interference suppression and electromagnetic absorption; Nonlinear microwave devices; multiferroic and emerging magnetoelectric devices; Biomedical applications of ferrite nanoparticles Perfect for RF engineers and magnetitians working in the fields of RF electronics, radar, communications, and spintronics as well as other emerging technologies. Modern Ferrites will earn a place on the bookshelves of engineers and scientists interested in the ever-expanding technologies reliant upon ferrite materials and new processing methodologies. Modern Ferrites Volume 1: Basic Principles, Processing and Properties is also available (ISBN: 9781118971468).
Download or read book Composite Magnetoelectrics written by Nian Sun and published by Elsevier. This book was released on 2015-05-11 with total page 381 pages. Available in PDF, EPUB and Kindle. Book excerpt: Composite Magnetoelectrics: Materials, Structures, and Applications gives the reader a summary of the theory behind magnetoelectric phenomena, later introducing magnetoelectric materials and structures and the techniques used to fabricate and characterize them. Part two of the book looks at magnetoelectric devices. Applications include magnetic and current sensors, transducers for energy harvesting, microwave and millimeter wave devices, miniature antennas and medical imaging. The final chapter discusses progress towards magnetoelectric memory. - Summarises clearly the theory behind magnetoelectric phenomena - Strong coverage of fabrication and characterisation techniques - Reviews a broad range of current and potential magnetoelectric devices
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 692 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Tunable Materials with Applications in Antennas and Microwaves written by John N. Sahalos and published by Springer Nature. This book was released on 2022-06-01 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt: Tunable Materials with Applications in Antennas and Microwaves is a stimulating topic in these modern times. With the explosion of the new generation of the wireless world, greater emphasis than ever before is being placed on the analysis and applications of modern materials. This book describes the characteristics of Ferrites and Ferroelectrics and introduces the reader to Multiferroics. Represents, in a simple manner, the solid state physics and explains the permittivity and permeability tensor characteristics for the tunable materials of infinite and finite dimensions. Gives the applications of tunable materials in resonators, filters, microstrips, striplines, antennas, phase shifters, capacitors, varactors, and frequency selective surfaces. Describes in detail the mathematical analysis for spin and magnetostatic waves for infinite medium, thin slab films, and finite circular discs. The analysis contains original work, which the reader may extend in the future. Provides multiferroics, which are ferrite and ferroelectric composites. Multiferroics are very promising tunable materials which are believed will offer many applications in the near future. Contains the planar transmission lines with analytic formulas for multilayer microstrips, transmission lines, and waveguides with isotropic as well as anisotropic dielectric and magnetic materials. Also, gives the formulas to analyze the layered category of transmission lines with multiferroics. This book is intended for antenna and microwave engineers as well as for graduate students of Materials Science and Engineering, Electrical & Computer Engineering, and Physics Departments.
Download or read book Ferroelectrics written by Ashim Kumar Bain and published by John Wiley & Sons. This book was released on 2017-06-19 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt: Combining both fundamental principles and real-life applications in a single volume, this book discusses the latest research results in ferroelectrics, including many new ferroelectric materials for the latest technologies, such as capacitors, transducers and memories. The first two chapters introduce dielectrics and microscopic materials properties, while the following chapter discusses pyroelectricity and piezoelectricity. The larger part of the text is devoted to ferroelectricity and ferroelectric ceramics, with not only their fundamentals but also applications discussed. The book concludes with a look at the future for laser printed materials and applications. With over 600 references to recent publications on piezoelectric and ferroelectric materials, this is an invaluable reference for physicists, materials scientists and engineers.
Download or read book Integrated Multiferroic Heterostructures and Applications written by Ming Liu and published by John Wiley & Sons. This book was released on 2019-08-05 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt: Written by well-known experts in the field, this first systematic overview of multiferroic heterostructures summarizes the latest developments, first presenting the fundamental mechanisms, including multiferroic materials synthesis, structures and mechanisms, before going on to look at device applications. The resulting text offers insight and understanding for scientists and students new to this area.
Download or read book Magnetoelectric Composites written by Mirza I. Bichurin and published by CRC Press. This book was released on 2019-02-22 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is dedicated to modeling and application of magnetoelectric (ME) effects in layered and bulk composites based on magnetostrictive and piezoelectric materials. Currently, numerous theoretical and experimental studies on ME composites are available but few on the development and research of instruments based on them. So far, only investigation of ME magnetic field sensors has been cited in the existing literature. However, these studies have finally resulted in the creation of low-frequency ME magnetic field sensors with parameters substantially exceeding the characteristics of Hall sensors. The book presents the authors’ many years of experience gained in ME composites and through creation of device models based on their studies. It describes low-frequency ME devices, such as current and position sensors and energy harvesters, and microwave ME devices, such as antennas, attenuators, filters, gyrators, and phase shifters.
Download or read book Research on Ferroelectric Materials for Millimeter Wave Application written by R. R. Neurgaonkar and published by . This book was released on 1982 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt: This technical report presents the results of the second six months of a research program on ferroelectric materials for phase control applications in millimeter wave radar systems. Originally a one-year program, this effort has been extended to fifteen months to take advantage of materials development activities in related programs. The major accomplishments in the current period include growth and preparation of several ferroelectric materials, and high frequency dielectric characterization of high purity single crystals of Sr. 6Ba. 4Nb206 (SBN:60). All systems examined to date exhibit high dielectric loss at millimeter wavelengths, the minimum being tan 11 - 0.3 near 40 GHz for a high purity SBN: 60 sample. The generality of this observation, when coupled with high sample-to-sample variability, suggests a commonly occurring extrinsic factor, such as growth defects, as the key element. How the frequency scale for polarization flucuations is tied to such extrinsic influences remains to be explored. A systematic study of the influence of defect structure on microwave dielectric properties of ferroelectrics is probably the most appropriate next step.
Download or read book U S Government Research Reports written by and published by . This book was released on 1963 with total page 964 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Magnetoelectric Composites written by Mirza I. Bichurin and published by CRC Press. This book was released on 2019-02-22 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is dedicated to modeling and application of magnetoelectric (ME) effects in layered and bulk composites based on magnetostrictive and piezoelectric materials. Currently, numerous theoretical and experimental studies on ME composites are available but few on the development and research of instruments based on them. So far, only investigation of ME magnetic field sensors has been cited in the existing literature. However, these studies have finally resulted in the creation of low-frequency ME magnetic field sensors with parameters substantially exceeding the characteristics of Hall sensors. The book presents the authors’ many years of experience gained in ME composites and through creation of device models based on their studies. It describes low-frequency ME devices, such as current and position sensors and energy harvesters, and microwave ME devices, such as antennas, attenuators, filters, gyrators, and phase shifters.
Download or read book Microwave Loss Properties of Hexagonal Ferrites for Millimeter Wave Applications written by Carl E. Patton and published by . This book was released on 1986 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt: This short term post LRCP contract was designed to explore the application of the off-resonance effective linewidth technique to hexagonal ferrite materials at x-band frequencies. This objective has been accomplished. It has been demonstrated that the technique works quite well for both uniaxial and planar ferrite materials. The key result for millimeter wave applications is that a significant part of the microwave losses in these materials appears to be related to inhomogeneities. The effective losses which would determine insertion loss parameters for off-resonance device applications would appear to be much lower than one would infer from a direct ferromagnetic resonance linewidth determination. It was also possible to use the technique to measure the off-resonance loss properties in uniaxial materials at x-band, even though the large anisotropy fields precluded the observation of the FMR peak. The application of the technique to planar samples has also led to a new approach to the analysis of fundamental microwave relaxation processes in ferrite materials. Keyword: Microwave damping.
Download or read book Technical Abstract Bulletin written by Defense Documentation Center (U.S.) and published by . This book was released on 1964 with total page 1148 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ferrites at Microwave Frequencies written by A. J. Baden Fuller and published by IET. This book was released on 1987 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt: Includes a full mathematical treatment of the interaction of an electromagnetic wave with a gyromagnetic ferrite material.
