Lattices Of Dielectric Resonators
DOWNLOAD
Download Lattices Of Dielectric Resonators PDF/ePub or read online books in Mobi eBooks. Click Download or Read Online button to get Lattices Of Dielectric Resonators book now. This website allows unlimited access to, at the time of writing, more than 1.5 million titles, including hundreds of thousands of titles in various foreign languages. If the content not found or just blank you must refresh this page
Lattices Of Dielectric Resonators
DOWNLOAD
Author : Alexander Trubin
language : en
Publisher: Springer
Release Date : 2015-10-30
Lattices Of Dielectric Resonators written by Alexander Trubin and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-10-30 with Technology & Engineering categories.
This book provides the analytical theory of complex systems composed of a large number of high-Q dielectric resonators. Spherical and cylindrical dielectric resonators with inferior and also whispering gallery oscillations allocated in various lattices are considered. A new approach to S-matrix parameter calculations based on perturbation theory of Maxwell equations, developed for a number of high-Q dielectric bodies, is introduced. All physical relationships are obtained in analytical form and are suitable for further computations. Essential attention is given to a new unified formalism of the description of scattering processes. The general scattering task for coupled eigen oscillations of the whole system of dielectric resonators is described. The equations for the expansion coefficients are explained in an applicable way. The temporal Green functions for the dielectric resonator are presented. The scattering process of short pulses in dielectric filter structures, dielectric antennas and lattices of dielectric resonators is discussed.
Dielectric Resonators
DOWNLOAD
Author : Darko Kajfez
language : en
Publisher: Noble Publishing
Release Date : 1998-01-01
Dielectric Resonators written by Darko Kajfez and has been published by Noble Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998-01-01 with Technology & Engineering categories.
This is the definite reference text on dielectric resonators used in filters and oscillators. This second edition includes corrections and updates, a new chapter on how to use the program included on a new disk. Sections are devoted to properties of materials, coupling techniques and filter and oscillator design using dielectric resonators. Programs implement the models presented in the book and identify the frequencies of all the modes. Author's Comments After the first publication of Dielectric Resonators by Artech House ran out of print, the book was reprinted by Vector Forum, and that version is also out of print now. As the book has become a popular reference for microwave and RF engineers, it is hoped that the present second edition will be just as useful. No matter what the major use of dielectric resonators will be in the future, the prerequisite for an intelligent application is an understanding of the basic principles of these devices. This book aims to provide that understanding. Publisher's Comments With renewed interest in dielectric resonator technology for modern wireless communications equipment, this book is an excellent reference for its understanding and application. The accompanying programs provided on disk implement the models presented in the book and identify the frequencies of all resonance modes
Microwave Dielectric Resonators
DOWNLOAD
Author : Sally J. Nauman
language : en
Publisher:
Release Date : 1965
Microwave Dielectric Resonators written by Sally J. Nauman and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1965 with Dielectric resonators categories.
The resonant frequencies for the fundamental modes in circular cylindrical and rectangular parallelopiped high dielectric resonators have been calculated by computer for a range of values of physical dimensions and relative dielectric constant. The frequency range extends from zero to 50,000 Mc/sec, the relative dielectric constant from 50 to 1800, and physical dimensions from zero to 500 mils. Results are presented in tabular and graphical form with frequency plotted versus resonator length for parametric values of relative dielectric constant and cross sectional dimensions. A brief review of earlier work with high dielectric resonators is included. Expressions for the resonant frequency and fundamental mode field configurations are given. (Author).
Introduction To The Theory Of Dielectric Resonators
DOWNLOAD
Author : Alexander Trubin
language : en
Publisher: Springer
Release Date : 2024-09-12
Introduction To The Theory Of Dielectric Resonators written by Alexander Trubin and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2024-09-12 with Science categories.
Embark on a comprehensive exploration of high-Q dielectric resonators. The book covers various shapes, introducing innovative scattering theories and new perspectives on coupling coefficients. It breaks ground by investigating coupled oscillations in diverse resonator types, shapes, and dielectrics, extending to frequency-detuned resonators and lattice formations. The revolutionary S-matrix methodology is presented with practical applications, including complex structures like optical microcavities. The book concludes by delving into the time domain, exploring pulse scattering and radiation by antenna arrays of dielectric resonators. Primarily targeted at researchers, engineers, and students in electromagnetics, materials science, and physics. This work uniquely combines theoretical depth with practical applications in high-Q dielectric resonators.
Temperature And Frequency Dependence Of Complex Permittivity In Metal Oxide Dielectrics Theory Modelling And Measurement
DOWNLOAD
Author : Jonathan Breeze
language : en
Publisher: Springer
Release Date : 2016-09-08
Temperature And Frequency Dependence Of Complex Permittivity In Metal Oxide Dielectrics Theory Modelling And Measurement written by Jonathan Breeze and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-09-08 with Technology & Engineering categories.
This thesis investigates the dielectric properties of metal-oxide ceramics at microwave frequencies. It also demonstrates for the first time that a theory of harmonic phonon coupling can effectively predict the complex permittivity of metal oxides as a function of temperature and frequency. Dielectric ceramics are an important class of materials for radio-frequency, microwave and emergent terahertz technologies. Their key property is complex permittivity, the real part of which permits the miniaturisation of devices and the imaginary part of which is responsible for the absorption of electromagnetic energy. Absorption limits the practical performance of many microwave devices such as filters, oscillators, passive circuits and antennas. Complex permittivity as a function of temperature for low-loss dielectrics is determined by measuring the resonant frequency of dielectric resonators and using the radial mode matching technique to extract the dielectric properties. There have been only a handful of publications on the theory of dielectric loss, and their predictions have often been unfortunately unsatisfactory when compared to measurements of real crystals, sometimes differing by whole orders of magnitude. The main reason for this is the lack of accurate data for a harmonic coupling coefficient and phonon eigenfrequencies at arbitrary q vectors in the Brillouin zone. Here, a quantum field theory of losses in dielectrics is applied, using results from density functional perturbation theory, to predict from first principles the complex permittivity of metal oxides as functions of frequency and temperature.
Dielectric Resonators
DOWNLOAD
Author : Darko Kajfez
language : en
Publisher: Kajfez Consulting
Release Date : 1990
Dielectric Resonators written by Darko Kajfez and has been published by Kajfez Consulting this book supported file pdf, txt, epub, kindle and other format this book has been release on 1990 with Technology & Engineering categories.
Dielectric Materials For Wireless Communication
DOWNLOAD
Author : Mailadil T. Sebastian
language : en
Publisher: Elsevier
Release Date : 2010-07-07
Dielectric Materials For Wireless Communication written by Mailadil T. Sebastian and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010-07-07 with Technology & Engineering categories.
Microwave dielectric materials play a key role in our global society with a wide range of applications, from terrestrial and satellite communication including software radio, GPS, and DBS TV to environmental monitoring via satellite. A small ceramic component made from a dielectric material is fundamental to the operation of filters and oscillators in several microwave systems. In microwave communications, dielectric resonator filters are used to discriminate between wanted and unwanted signal frequencies in the transmitted and received signal. When the wanted frequency is extracted and detected, it is necessary to maintain a strong signal. For clarity it is also critical that the wanted signal frequencies are not affected by seasonal temperature changes. In order to meet the specifications of current and future systems, improved or new microwave components based on dedicated dielectric materials and new designs are required. The recent progress in microwave telecommunication, satellite broadcasting and intelligent transport systems (ITS) has resulted in an increased demand for Dielectric Resonators (DRs). With the recent revolution in mobile phone and satellite communication systems using microwaves as the propagation media, the research and development in the field of device miniaturization has been a major challenge in contemporary Materials Science. In a mobile phone communication, the message is sent from a phone to the nearest base station, and then on via a series of base stations to the other phone. At the heart of each base station is the combiner/filter unit which has the job of receiving the messages, keeping them separate, amplifying the signals and sending then onto the next base station. For such a microwave circuit to work, part of it needs to resonate at the specific working frequency. The frequency determining component (resonator) used in such a high frequency device must satisfy certain criteria. The three important characteristics required for a dielectric resonator are (a) a high dielectric constant which facilitates miniaturization (b) a high quality factor (Qxf) which improves the signal-to-noise ratio, (c) a low temperature coefficient of the resonant frequency which determines the stability of the transmitted frequency. During the past 25 years scientists the world over have developed a large number of new materials (about 3000) or improved the properties of known materials. About 5000 papers have been published and more than 1000 patents filed in the area of dielectric resonators and related technologies. This book brings the data and science of these several useful materials together, which will be of immense benefit to researchers and engineers the world over. The topics covered in the book includes factors affecting the dielectric properties, measurement of dielectric properties, important low loss dielectric material systems such as perovskites, tungsten bronze type materials, materials in BaO-TiO2 system, (Zr,Sn)TiO4, alumina, rutile, AnBn-1O3n type materials, LTCC, ceramic-polymer composites etc. The book also has a data table listing all reported low loss dielectric materials with properties and references arranged in the order of increasing dielectric constant. Collects together in one source data on all new materials used in wireless communication Includes tabulated properties of all reported low loss dielectric materials In-depth treatment of dielectric resonator materials
Microwave Materials And Applications
DOWNLOAD
Author : Mailadil T. Sebastian
language : en
Publisher: John Wiley & Sons
Release Date : 2017-03-02
Microwave Materials And Applications written by Mailadil T. Sebastian and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-03-02 with Technology & Engineering categories.
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.
Waveguide Type Dielectric Resonators
DOWNLOAD
Author : British Standards Institution
language : en
Publisher:
Release Date : 2000
Waveguide Type Dielectric Resonators written by British Standards Institution and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000 with Dielectric resonators categories.
Dielectric Resonators For Use In Microwave And Millimeter Wave Gaas Circuits
DOWNLOAD
Author : B. E. Spielman
language : en
Publisher:
Release Date : 1983
Dielectric Resonators For Use In Microwave And Millimeter Wave Gaas Circuits written by B. E. Spielman and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1983 with categories.
This report represents the results of an investigation of dielectric resonators to be processed in GaAs substrates for application to microwave and millimeter-wave monolithic integrated circuits. Zeroth-and first order analyses are described. These analyses are applied to dielectric resonator structures to be formed in GaAs substrate material by etching an annular gap in the substrate, thereby effectively leaving a circular cylindrical disc of dielectric material to function as a resonator. Plots of geometric parameter variations with frequency are provided for these resonator structures. Tables are presented to show specific resonant structures for frequency-scaled microwave and non-scaled millimeter-wave resonators. Results are discussed, conclusions drawn, and suggestions for further work set forth. (Author).
