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Author : Hung-Yuet Yee
Publisher :
ISBN 13 :
Total Pages : 106 pages
Book Rating : 4.F/5 ( download)
Download or read book An Investigation of Microwave Dielectric Resonators written by Hung-Yuet Yee and published by . This book was released on 1963 with total page 106 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Kwai Man Luk
Publisher : Research Studies Press Limited
ISBN 13 : 9780863802638
Total Pages : 0 pages
Book Rating : 4.8/5 (26 download)
Download or read book Dielectric Resonator Antennas written by Kwai Man Luk and published by Research Studies Press Limited. This book was released on 2003 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The use of dielectric resonator as a resonant antenna was proposed in 1983. Due to the absence of metallic loss, the dielectric resonator antenna (DRA) is highly efficient when operated at millimetre wave frequencies. With the use of high dielectric constant material, the DRA can also be used as a small and low profile antenna operated at low microwave frequencies. Low cost dielectric materials are now easily available commercially, encouraging more antenna engineers to design communication systems with DRAs.
Author : Sally J. Nauman
Publisher :
ISBN 13 :
Total Pages : 162 pages
Book Rating : 4.3/5 (91 download)
Download or read book Microwave Dielectric Resonators written by Sally J. Nauman and published by . This book was released on 1965 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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).
Author : Mailadil T. Sebastian
Publisher : John Wiley & Sons
ISBN 13 : 1119208564
Total Pages : 997 pages
Book Rating : 4.1/5 (192 download)
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 997 pages. Available in PDF, EPUB and Kindle. Book excerpt: Die jüngsten Fortschritte im Bereich der drahtlosen Telekommunikation und dem Internet der Dinge sorgen bei drahtlosen Systemen, beim Satellitenfernsehen und bei intelligenten Transportsystemen der 5. Generation für eine höhere Nachfrage nach dielektrischen Materialien und modernen Fertigungstechniken. Diese Materialien bieten ausgezeichnete elektrische, dielektrische und thermische Eigenschaften und verfügen über enormes Potenzial, vor allem bei der drahtlosen Kommunikation, bei flexibler Elektronik und gedruckter Elektronik. Microwave Materials and Applications erläutert die herkömmlichen Methoden zur Messung der dielektrischen Eigenschaften im Mikrowellenbereich, die verschiedenen Ansätze zur Lösung von Problemen der Materialchemie und von Kristallstrukturen, in den Bereichen Doping, Substitution und Aufbau von Verbundwerkstoffen. Besonderer Schwerpunkt liegt auf Verarbeitungstechniken, Einflüssen der Morphologie und der Anwendung von Materialien in der Mikrowellentechnik. Gleichzeitig werden viele der jüngsten Forschungserkenntnisse bei Mikrowellen-Dielektrika und -Anwendungen zusammengefasst. Die verschiedenen Kapitel untersuchen: Oxidkeramiken für dielektrische Resonatoren und Substrate, HTCC-, LTCC- und ULTCC-Bänder für Substrate, Polymer-Keramik-Verbundstoffe für Leiterplatten, Elastomer-Keramik-Verbundstoffe für flexible Elektronik, dielektrische Tinten, Materialien für die EMV-Abschirmung, Mikrowellen-Ferrite. Ein umfassender Anhang präsentiert die grundlegenden Eigenschaften von mehr als 4000 verlustarmen dielektrischen Keramiken, deren Zusammensetzung, kristalline Struktur und dielektrischen Eigenschaften für Mikrowellenanwendungen. Microwave Materials and Applications wirft einen Blick auf sämtliche Aspekte von Mikrowellenmaterialien und -anwendungen, ein nützliches Handbuch für Wissenschaftler, Unternehmen, Ingenieure und Studenten, die sich mit heutigen und neuen Anwendungen in den Bereichen drahtlose Kommunikation und Unterhaltungselektronik beschäftigen.
Author :
Publisher :
ISBN 13 :
Total Pages : 726 pages
Book Rating : 4.3/5 (91 download)
Download or read book Government-wide Index to Federal Research & Development Reports written by and published by . This book was released on 1966-06 with total page 726 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Mailadil T. Sebastian
Publisher : Elsevier
ISBN 13 : 0080560504
Total Pages : 689 pages
Book Rating : 4.0/5 (85 download)
Download or read book Dielectric Materials for Wireless Communication written by Mailadil T. Sebastian and published by Elsevier. This book was released on 2010-07-07 with total page 689 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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
Author : DIANE Publishing Company
Publisher : DIANE Publishing
ISBN 13 : 9780788118340
Total Pages : 162 pages
Book Rating : 4.1/5 (183 download)
Download or read book Certain Dielectric Miniature Microwave Filters and Multiplexers Containing Same written by DIANE Publishing Company and published by DIANE Publishing. This book was released on 1995-07 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt: Determines that there is reason to believe that there is a violation in the importation, sale for importation, or sale in the U. S. after importation of dielectric miniature microwave filters. Considers the issues whether the public interest precludes issuance of relief.
Author :
Publisher :
ISBN 13 :
Total Pages : 780 pages
Book Rating : 4.E/5 ( download)
Download or read book Technical Abstract Bulletin written by and published by . This book was released on with total page 780 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Mailadil T. Sebastian
Publisher : John Wiley & Sons
ISBN 13 : 1119208521
Total Pages : 1021 pages
Book Rating : 4.1/5 (192 download)
Download or read book Microwave Materials and Applications, 2 Volume Set written by Mailadil T. Sebastian and published by John Wiley & Sons. This book was released on 2017-05-08 with total page 1021 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.
Author :
Publisher :
ISBN 13 :
Total Pages : 892 pages
Book Rating : 4.:/5 (31 download)
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1994 with total page 892 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Raghvendra Kumar Chaudhary
Publisher : Artech House
ISBN 13 : 1630818186
Total Pages : 310 pages
Book Rating : 4.6/5 (38 download)
Download or read book Circularly Polarized Dielectric Resonator Antennas written by Raghvendra Kumar Chaudhary and published by Artech House. This book was released on 2021-08-31 with total page 310 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book introduces 5 key feeding techniques such as coaxial probe, microstrip, conformal strip, aperture, and coplanar waveguide and covers different shapes of dielectric resonator antennas leading to improvement in circularly polarized (CP) performance. It introduces advancements in the field of dielectric resonator antennas and dilectric resonator antennas (DRAs). Five different types of feeding techniques (i.e. coaxial probe, microstrip, conformal strip, aperture, and coplanar waveguide) are described for obtaining CP followed by two modified shaped DRA (sector DRAs). Throughout this book, rectangular and circular with their modified shapes of the dielectric resonator are utilized, providing differing degrees of freedom as well as different variable parameters, including length, width, height, radius, aspect ratio and dielectric constant, which are tuned to obtain the desired antenna parameters.
Author : Konishi
Publisher : CRC Press
ISBN 13 : 9780824781996
Total Pages : 628 pages
Book Rating : 4.7/5 (819 download)
Download or read book Microwave Integrated Circuits written by Konishi and published by CRC Press. This book was released on 1991-03-29 with total page 628 pages. Available in PDF, EPUB and Kindle. Book excerpt: Presents to a wide range of students and engineers up-to-date techniques of MICs, with readily comprehensible explanations, providing a unified description of MICs, clarifying physical content, including sufficient data to be directly useful to active engineers, and providing a path of entry into th
Author : Carlos Roberto Grandini
Publisher : Trans Tech Publications Ltd
ISBN 13 : 3035700028
Total Pages : 1042 pages
Book Rating : 4.0/5 (357 download)
Download or read book 21st Brazilian Conference on Materials Science and Engineering written by Carlos Roberto Grandini and published by Trans Tech Publications Ltd. This book was released on 2016-08-31 with total page 1042 pages. Available in PDF, EPUB and Kindle. Book excerpt: Selected, peer reviewed papers from the 21st Brazilian Conference on Materials Science and Engineering (CBECIMAT), November 9-13, 2014, Cuiabá (MT), Brazil
Author : Dibya Prakash Rai
Publisher : Bentham Science Publishers
ISBN 13 : 9815223119
Total Pages : 338 pages
Book Rating : 4.8/5 (152 download)
Download or read book Advanced Materials and Nano Systems: Theory and Experiment (Part 3) written by Dibya Prakash Rai and published by Bentham Science Publishers. This book was released on 2024-07-19 with total page 338 pages. Available in PDF, EPUB and Kindle. Book excerpt: The discovery of new materials and the manipulation of their exotic properties for device fabrication is crucial for advancing technology. Nanoscience, and the creation of nanomaterials have taken materials science and electronics to new heights for the benefit of mankind. Advanced Materials and Nanosystems: Theory and Experiment covers several topics of nanoscience research. The compiled chapters aim to update readers by highlighting modern developments in materials science theory and experiments. The significant role of new materials in future technology is also demonstrated. The book serves as a reference for curriculum development in technical institutions and research programs in the field of physics, chemistry and applied areas of science like materials science, chemical engineering and electronics. This part covers 11 topics in these areas: 1- Role of Plasmonic Metal-semiconductor Heterostructure in Photo Catalytic Hydrolysis and Degradation of Toxic Dyes 2 -BaZrO3-Based Ceramics and Ceramic Composites as Smart Materials for Advanced Applications 3 -A High-capacity Anode Material for Lithium-ion Batteries is Sili-graphene Type SiC3 4 -An Introduction to the Fabrication of White Light-emitting Diodes 5 -Electronic and Piezoelectric Properties of Nonmetal Doped II-VI Monolayer Compounds 6- A Theoretical Investigation on the New Quaternary MAX-phase Compounds 7- Surface Segregation in Pt 3 Nb and Pt 3 Ti using Density Functional-based Methods. 8- Nanoparticles and Environmental Health 9 -Investigation for Optimum site for adsorption and population effect of Lithium on Silicene Monolayer 10- Strategies for Synthesizing Metal Oxide Nanoparticles and the Challenges 11- Heterogeneous Semiconductor Photocatalysis for Water Purification: Basic Mechanism and Advanced Strategies.
Author : Mickaël Lallart
Publisher : BoD – Books on Demand
ISBN 13 : 9533074558
Total Pages : 602 pages
Book Rating : 4.5/5 (33 download)
Download or read book Ferroelectrics written by Mickaël Lallart and published by BoD – Books on Demand. This book was released on 2011-08-23 with total page 602 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ferroelectric materials have been and still are widely used in many applications, that have moved from sonar towards breakthrough technologies such as memories or optical devices. This book is a part of a four volume collection (covering material aspects, physical effects, characterization and modeling, and applications) and focuses on the characterization of ferroelectric materials, including structural, electrical and multiphysic aspects, as well as innovative techniques for modeling and predicting the performance of these devices using phenomenological approaches and nonlinear methods. Hence, the aim of this book is to provide an up-to-date review of recent scientific findings and recent advances in the field of ferroelectric system characterization and modeling, allowing a deep understanding of ferroelectricity.
Author : Uve H. W. Lammers
Publisher :
ISBN 13 :
Total Pages : 28 pages
Book Rating : 4.3/5 (91 download)
Download or read book Microwave Dielectric Resonator-tuning written by Uve H. W. Lammers and published by . This book was released on 1974 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dielectric resonators have applications as low-loss compact filters in the microwave region. Tuning characteristics of dielectric resonators that might allow for temperature compensation and frequency variability were investigated both theoretically and experimentally at L band. A secondary dielectric resonator that is offset in frequency from the tuned resonator provides a maximum tuning range of approximately 10 percent before an additional filter loss of 3 dB is incurred; the rate of tuning is slow since it is done by changing the resonator coupling (spacing). For fast tuning, a varactor is used in a coupled resonant circuit. Frequency changes can then be made in a time interval approaching 1/(filter bandwidth), but in this case the maximum tuning range before an additional filter loss of 3 dB is incurred is reduced to 2 percent of the filter frequency.
Author :
Publisher :
ISBN 13 :
Total Pages : 1312 pages
Book Rating : 4.:/5 (31 download)
Download or read book Microwaves & RF. written by and published by . This book was released on 1987 with total page 1312 pages. Available in PDF, EPUB and Kindle. Book excerpt:
