Tuneable Film Bulk Acoustic Wave Resonators Book

Tuneable Film Bulk Acoustic Wave Resonators

  • Author : Spartak Gevorgian
  • Publisher : Springer Science & Business Media
  • Release Date : 2013-02-14
  • Genre: Technology & Engineering
  • Pages : 243
  • ISBN 10 : 9781447149446

Tuneable Film Bulk Acoustic Wave Resonators Excerpt :

To handle many standards and ever increasing bandwidth requirements, large number of filters and switches are used in transceivers of modern wireless communications systems. It makes the cost, performance, form factor, and power consumption of these systems, including cellular phones, critical issues. At present, the fixed frequency filter banks based on Film Bulk Acoustic Resonators (FBAR) are regarded as one of the most promising technologies to address performance -form factor-cost issues. Even though the FBARs improve the overall performances the complexity of these systems remains high. Attempts are being made to exclude some of the filters by bringing the digital signal processing (including channel selection) as close to the antennas as possible. However handling the increased interference levels is unrealistic for low-cost battery operated radios. Replacing fixed frequency filter banks by one tuneable filter is the most desired and widely considered scenario. As an example, development of the software based cognitive radios is largely hindered by the lack of adequate agile components, first of all tuneable filters. In this sense the electrically switchable and tuneable FBARs are the most promising components to address the complex cost-performance issues in agile microwave transceivers, smart wireless sensor networks etc. Tuneable Film Bulk Acoustic Wave Resonators discusses FBAR need, physics, designs, modelling, fabrication and applications. Tuning of the resonant frequency of the FBARs is considered. Switchable and tuneable FBARs based on electric field induced piezoelectric effect in paraelectric phase ferroelectrics are covered. The resonance of these resonators may be electrically switched on and off and tuned without hysteresis. The book is aimed at microwave and sensor specialists in the industry and graduate students. Readers will learn about principles of operation and possibilities of the switchable and tuneable FBARs, and will be given general gu

Modeling and Measurement Methods for Acoustic Waves and for Acoustic Microdevices Book

Modeling and Measurement Methods for Acoustic Waves and for Acoustic Microdevices

  • Author : Marco G. Beghi
  • Publisher : BoD – Books on Demand
  • Release Date : 2013-08-28
  • Genre: Technology & Engineering
  • Pages : 614
  • ISBN 10 : 9789535111894

Modeling and Measurement Methods for Acoustic Waves and for Acoustic Microdevices Excerpt :

Acoustics is a mature field which enjoys a never ending youth. New developments are induced by either the search for a better understanding, or by technological innovations. Micro-fabrication techniques introduced a whole new class of microdevices, which exploit acoustic waves for various tasks, and in particular for information processing and for sensing purposes. Performance improvements are achievable by better modelling tools, able to deal with more complex configurations, and by more refined techniques of fabrication and of integration in technological systems, like wireless communications. Several chapters of this book deal with modelling and fabrication techniques for microdevices, including unconventional phenomena and configurations. But this is far from exhausting the research lines in acoustics. Theoretical analyses and modelling techniques are presented, for phenomena ranging from the detection of cracks to the acoustics of the oceans. Measurement methods are also discussed, which probe by acoustic waves the properties of widely different systems.

Acoustic Wave and Electromechanical Resonators Book
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Acoustic Wave and Electromechanical Resonators

  • Author : Humberto Campanella
  • Publisher : Artech House
  • Release Date : 2010
  • Genre: Acoustic surface wave devices
  • Pages : 363
  • ISBN 10 : 9781607839781

Acoustic Wave and Electromechanical Resonators Excerpt :

This groundbreaking book provides you with a comprehensive understanding of FBAR (thin-film bulk acoustic wave resonator), MEMS (microelectomechanical system), and NEMS (nanoelectromechanical system) resonators. For the first time anywhere, you find extensive coverage of these devices at both the technology and application levels. This practical reference offers you guidance in design, fabrication, and characterization of FBARs, MEMS and NEBS. It discusses the integration of these devices with standard CMOS (complementary-metal-oxide-semiconductor) technologies, and their application to sensing and RF systems. Moreover, this one-stop resource looks at the main characteristics, differences, and limitations of FBAR, MEMS, and NEMS devices, helping you to choose the right approaches for your projects. Over 280 illustrations and more than 130 equations support key topics throughout the book.

Microwave Material Applications  Device Miniaturization and Integration Book

Microwave Material Applications Device Miniaturization and Integration

  • Author : David B. Cruickshank
  • Publisher : Artech House
  • Release Date : 2016-10-31
  • Genre: Technology & Engineering
  • Pages : 246
  • ISBN 10 : 9781630814359

Microwave Material Applications Device Miniaturization and Integration Excerpt :

This comprehensive new resource based on the classic Artech House title, Microwave Materials for Wireless Applications, introduces the use of new microwave materials for passive devices including ferrites, magnetization garnets, dielectric materials, and absorbers for wireless and antenna applications. This book explores a new set of magnetic and dielectric materials that assist with size reduction of passive devices such as ferrite isolators and circulators. Revised data on the applications of absorbers, including examples of different combinations of magnetic, dielectric, and absorber materials into integrated devices is presented. Meta-materials for antennas and potential antenna integration onto soft boards or LTCC filter technologies using tunable devices with new materials are covered. Professionals learn how new material designs use properties of certain ions in oxide compounds to reduce their physical size, including in cellular base stations designed for 4G and 5G cell phone communication systems. This book exhibits how the integration of new materials into cellular systems using common transmission lines will further save size and reduce complexity. New technologies are presented demonstrating the use of sol-gel processing and ceramic processing in the use of low temperature co-fired ceramics, plastic molding, and 3D printing demonstrating improved device designs.

Tunable Multiband Ferroelectric Devices for Reconfigurable RF Frontends Book

Tunable Multiband Ferroelectric Devices for Reconfigurable RF Frontends

  • Author : Yuliang Zheng
  • Publisher : Springer Science & Business Media
  • Release Date : 2013-01-12
  • Genre: Technology & Engineering
  • Pages : 149
  • ISBN 10 : 9783642357800

Tunable Multiband Ferroelectric Devices for Reconfigurable RF Frontends Excerpt :

Reconfigurable RF-frontends aim to cope with the continuous pursuit of wider frequency coverage, higher efficiency, further compactness and lower cost of ownership. They are expected to lay the foundations of future software defined or cognitive radios. As a potential enabling technology for the frontends, the tunable ferroelectric devices have shown not only enhanced performance but also new functionalities. This book explores the recent developments in the field. It provides a cross-sectional perspective on the interdisciplinary research. With attention to the devices based on ceramic thick-films and crystal thin-films, the book reviews the adapted technologies of material synthesis, film deposition and multilayer circuitry. Next, it highlights the original classes of thin-film ferroelectric devices, including stratified metal-insulator-metal varactors with suppression of acoustic resonance and programmable bi-stable high frequency capacitors. At the end the book analyzes how the frontends can be reformed by tunable multiband antennas, tunable single- and multiband impedance matching networks and tunable substrate integrated waveguide filters, which are all built on low cost ferroelectric thick-films. For all the above devices, the theoretical analyses, modeling and design methods are elaborated, while through demonstrative prototypes the application potential is evaluated.

RF Bulk Acoustic Wave Filters for Communications Book

RF Bulk Acoustic Wave Filters for Communications

  • Author : Ken-ya Hashimoto
  • Publisher : Artech House
  • Release Date : 2009
  • Genre: Acoustic bulk wave devices
  • Pages : 275
  • ISBN 10 : 9781596933224

RF Bulk Acoustic Wave Filters for Communications Excerpt :

For years, surface acoustic wave (SAW) filters have been widely used as radio frequency front-end filters and duplexers for mobile communication systems. Recently, bulk acoustic wave (BAW) filters are gaining more popularly for their performance benefits and are being utilized more and more in the design of today's cutting-edge mobile devices and systems. This timely book presents a thorough overview of RF BAW filters, covering a vast range of technologies, optimal device design, filter topologies, packaging, fabrication processes, and high quality piezoelectric thin films. Moreover, the book discusses the integration of BAW filters in RF systems.

Recent Technical Developments in Energy Efficient 5G Mobile Cells Book

Recent Technical Developments in Energy Efficient 5G Mobile Cells

  • Author : Raed A. Abd-Alhameed
  • Publisher : MDPI
  • Release Date : 2020-06-17
  • Genre: Technology & Engineering
  • Pages : 292
  • ISBN 10 : 9783039362127

Recent Technical Developments in Energy Efficient 5G Mobile Cells Excerpt :

This book addresses the true innovation in engineering design that may be promoted by blending together models and methodologies from different disciplines, and, in this book, the target was exactly to follow this approach to deliver a new disruptive architecture to deliver these next-generation mobile small cell technologies. According to this design philosophy, the work within this book resides in the intersection of engineering paradigms that includes “cooperation”, “network coding”, and “smart energy-aware frontends”. These technologies will not only be considered as individual building blocks, but re-engineered according to an inter-design approach resulting in the enabler for energy efficient femtocell-like services on the move. The book aims to narrow the gap between the current networking technologies and the foreseen requirements that are targeted at the future development of the 5G mobile and wireless communications networks in terms of the higher networking capacity, the ability to support more users, the lower cost per bit, the enhanced energy efficiency, and adaptability to new services and devices (for example, smart cities, and the Internet of things (IoT)).

Piezoelectric MEMS Resonators Book

Piezoelectric MEMS Resonators

  • Author : Harmeet Bhugra
  • Publisher : Springer
  • Release Date : 2017-01-09
  • Genre: Technology & Engineering
  • Pages : 424
  • ISBN 10 : 9783319286884

Piezoelectric MEMS Resonators Excerpt :

This book introduces piezoelectric microelectromechanical (pMEMS) resonators to a broad audience by reviewing design techniques including use of finite element modeling, testing and qualification of resonators, and fabrication and large scale manufacturing techniques to help inspire future research and entrepreneurial activities in pMEMS. The authors discuss the most exciting developments in the area of materials and devices for the making of piezoelectric MEMS resonators, and offer direct examples of the technical challenges that need to be overcome in order to commercialize these types of devices. Some of the topics covered include: Widely-used piezoelectric materials, as well as materials in which there is emerging interest Principle of operation and design approaches for the making of flexural, contour-mode, thickness-mode, and shear-mode piezoelectric resonators, and examples of practical implementation of these devices Large scale manufacturing approaches, with a focus on the practical aspects associated with testing and qualification Examples of commercialization paths for piezoelectric MEMS resonators in the timing and the filter markets ...and more! The authors present industry and academic perspectives, making this book ideal for engineers, graduate students, and researchers.

Integration of Ferroelectric and Piezoelectric Thin Films Book

Integration of Ferroelectric and Piezoelectric Thin Films

  • Author : Emmanuel Defaÿ
  • Publisher : John Wiley & Sons
  • Release Date : 2013-03-04
  • Genre: Technology & Engineering
  • Pages : 404
  • ISBN 10 : 9781118616604

Integration of Ferroelectric and Piezoelectric Thin Films Excerpt :

This book contains four parts. The first one is dedicated to concepts. It starts with the definitions and examples of what is piezo-pyro and ferroelectricity by considering the symmetry of the material. Thereafter, these properties are described within the framework of Thermodynamics. The second part described the way to integrate these materials in Microsystems. The third part is dedicated to characterization: composition, structure and a special focused on electrical behaviors. The last part gives a survey of state of the art applications using integrated piezo or/and ferroelectric films.

Ferroelectrics in Microwave Devices  Circuits and Systems Book

Ferroelectrics in Microwave Devices Circuits and Systems

  • Author : Spartak Gevorgian
  • Publisher : Springer Science & Business Media
  • Release Date : 2009-05-30
  • Genre: Technology & Engineering
  • Pages : 396
  • ISBN 10 : 9781848825079

Ferroelectrics in Microwave Devices Circuits and Systems Excerpt :

Today’s wireless communications and information systems are heavily based on microwave technology. Current trends indicate that in the future along with - crowaves, the millimeter wave and Terahertz technologies will be used to meet the growing bandwidth and overall performance requirements. Moreover, motivated by the needs of the society, new industry sectors are gaining ground; such as wi- less sensor networks, safety and security systems, automotive, medical, envir- mental/food monitoring, radio tags etc. Furthermore, the progress and the pr- lems in the modern society indicate that in the future these systems have to be more user/consumer friendly, i. e. adaptable, reconfigurable and cost effective. The mobile phone is a typical example which today is much more than just a phone; it includes a range of new functionalities such as Internet, GPS, TV, etc. To handle, in a cost effective way, all available and new future standards, the growing n- ber of the channels and bandwidth both the mobile handsets and the associated systems have to be agile (adaptable/reconfigurable). The complex societal needs have initiated considerable activities in the field of cognitive and software defined radios and triggered extensive research in adequate components and technology platforms. To meet the stringent requirements of these systems, especially in ag- ity and cost, new components with enhanced performances and new functionalities are needed. In this sense the components based on ferroelectrics have greater - tential and already are gaining ground.

Micromachined Circuits and Devices Book

Micromachined Circuits and Devices

  • Author : Shiban Kishen Koul
  • Publisher : Springer Nature
  • Release Date : 2022-02-07
  • Genre: Technology & Engineering
  • Pages : 380
  • ISBN 10 : 9789811694431

Micromachined Circuits and Devices Excerpt :

This book presents the design of different switching and resonant devices using the present state-of-the-art radio frequency (RF) micromachining (MEMS) technology. Different topologies of MEMS switches have been discussed considering optimum performances over microwave to millimeter wave frequency range. Wide varieties of micromachined switching networks starting from single-pole-double-throw (SPDT) to single-pole-fourteen-throw (SP14T) are discussed utilizing vertical and lateral actuation movements of the switch. Different transduction mechanisms of micromachined resonators are highlighted that includes capacitive, piezoelectric, and piezoresistive types. The book provides major design guidelines for the development of MEMS-based digital phase shifters, tunable filters, and antennas with extensive measurement data. Apart from the radio frequency (RF) requirements, an extensive guideline is given for the improvement of the reliability of micromachined switches and digital phase shifters where multiple switches are operating simultaneously. It takes multiple iterations and extensive characterizations to conclude with a reliable MEMS digital phase shifter, and these aspects are given one of the prime attentions in this book. Detailed performance analysis of metamaterial inspired MEMS switches is then discussed for application in millimeter wave frequency bands up to about 170 GHz. The book concludes with future research activities of RF MEMS technology and its potential in space, defense, sensors, and biomedical applications.

Electroceramic Based MEMS Book

Electroceramic Based MEMS

  • Author : Nava Setter
  • Publisher : Springer Science & Business Media
  • Release Date : 2006-03-30
  • Genre: Technology & Engineering
  • Pages : 414
  • ISBN 10 : 9780387233192

Electroceramic Based MEMS Excerpt :

The book is focused on the use of functional oxide and nitride films to enlarge the application range of MEMS (microelectromechanical systems), including micro-sensors, micro-actuators, transducers, and electronic components for microwaves and optical communications systems. Applications, emerging applications, fabrication technology and functioning issues are presented and discussed. The book covers the following topics: Part A: Applications and devices with electroceramic-based MEMS: Chemical microsensors Microactuators based on thin films Micromachined ultrasonic transducers Thick-film piezoelectric and magnetostrictive devices Pyroelectric microsystems RF bulk acoustic wave resonators and filters High frequency tunable devices MEMS for optical functionality Part B: Materials, fabrication technology, and functionality: Ceramic thick films for MEMS Piezoelectric thin films for MEMS Materials and technology in thin films for tunable high frequency devices Permittivity, tunability and loss in ferroelectrics for reconfigurable high frequency electronics Microfabrication of piezoelectric MEMS Nano patterning methods for electroceramics Soft lithography emerging techniques The book is addressed to engineers, scientists and researchers of various disciplines, device engineers, materials engineers, chemists, physicists and microtechnologists who are working and/or interested in this fast growing and highly promising field. The publication of this book follows a Special Issue on electroceramic-based MEMS that was published in the Journal of Electroceramics at the beginning of 2004. The ten invited papers of that special issue were adapted by the authors into chapters of the present book and five additional chapters were added.

Surface Acoustic Wave Devices and Their Signal Processing Applications Book

Surface Acoustic Wave Devices and Their Signal Processing Applications

  • Author : Colin Campbell
  • Publisher : Elsevier
  • Release Date : 2012-12-02
  • Genre: Technology & Engineering
  • Pages : 484
  • ISBN 10 : 9780323148665

Surface Acoustic Wave Devices and Their Signal Processing Applications Excerpt :

Surface Acoustic Wave Devices and Their Signal Processing Applications is a textbook that combines experiment and theory in assessing the signal processing applications of surface acoustic wave (SAW) devices. The operating principles of SAW devices are described from a circuit design viewpoint. This book is comprised of 18 chapters and begins with a historical background on surface acoustic waves and a discussion on the merits of SAW devices as well as their applications. The next chapter introduces the reader to the basics of acoustic waves and piezoelectricity, together with the effect of acoustic bulk waves on the performance of SAW filters. The principles of linear phase SAW filter design and equivalent circuit models for a SAW filter are then described. The remaining chapters focus on trade-offs in linear phase SAW filter design; compensation for second-order effects; harmonic SAW delay lines for gigahertz frequencies; and coding techniques using linear SAW transducers. The final chapter highlights Some other significant alternative design techniques and applications for SAW devices. This monograph will be suitable for engineering or physics students as well as engineers, scientists, and technical staff in industry who seek further information on SAW-based circuits, systems, and applications.

Switchable and Tunable Bulk Acoustic Wave Devices Based on Ferroelectric Material Book

Switchable and Tunable Bulk Acoustic Wave Devices Based on Ferroelectric Material

  • Author : Almonir Abdulgader Mansour
  • Publisher : Unknown
  • Release Date : 2017
  • Genre: Acoustical materials
  • Pages : 203
  • ISBN 10 : OCLC:1044739785

Switchable and Tunable Bulk Acoustic Wave Devices Based on Ferroelectric Material Excerpt :

The explosive development of personal communications systems, navigation, satellite communications as well as personal computer and data processing systems together with the constant demand for higher speeds and larger bandwidths has driven fabrication technology to its limits. This, in turn, necessitates the development of novel functional materials for the fabrication of devices with superior performance and higher capacity at reduced manufacturing costs. Ferroelectric materials such as barium strontium titanate (BST) and strontium titanium oxide (STO) have received more attention by researchers and industry because of their field-induced piezoelectric property. This property gives these types of ferroelectric materials the ability to be switchable and tunable in the presence of an electric field. These features have allowed the ferroelectric materials to be used in many applications such as non-volatile memory and DRAMs, sensors, pyroelectric detectors, and tunable microwave devices. Therefore, with the ever increasing complexity in RF front-end receivers, and the demand for services (which in turn requires more functionalities), ferroelectric bulk acoustic wave (BAW) resonators and filters that are intrinsically switchable and promise to reduce the size and complexity of component parts. In this work, we present the design, fabrication and experimental evaluation of switchable and tunable thin film bulk acoustic wave (BAW) resonators, filters and duplexers for radio frequency (RF) applications. The switchability and tunability of these devices come from utilizing the electrostrictive effect of ferroelectric materials such as barium strontium titanate (BST) with the application of an external DC-bias voltage. The BAW resonators, filters and duplexers in this work were fabricated on different substrates as solidly mounted resonator (SMR) structure with number of periodic layers of silicon dioxide and tantalum oxide as a Bragg reflector in order to acoustically iso

Metallic Oxynitride Thin Films by Reactive Sputtering and Related Deposition Methods  Processes  Properties and Applications Book

Metallic Oxynitride Thin Films by Reactive Sputtering and Related Deposition Methods Processes Properties and Applications

  • Author : Filipe Vaz
  • Publisher : Bentham Science Publishers
  • Release Date : 2013-06-21
  • Genre: Technology & Engineering
  • Pages : 362
  • ISBN 10 : 9781608051564

Metallic Oxynitride Thin Films by Reactive Sputtering and Related Deposition Methods Processes Properties and Applications Excerpt :

Oxynitride thin film technology is rapidly impacting a broad spectrum of applications, ranging from decorative functions (through optoelectronics) to corrosion resistance. Developing a better understanding of the relationships between deposition processes, structure and composition of the deposited films is critical to the continued evolution of these applications. This e-book provides valuable information about the process modeling, fabrication and characterization of metallic oxynitride-based thin films produced by reactive sputtering and some related deposition processes. Its contents are spread in twelve main and concise chapters through which the book thoroughly reviews the bases of oxynitride thin film technology and deposition processes, sputtering processes and the resulting behaviors of these oxynitride thin films. More importantly, the solutions for the growth of oxynitride technology are given in detail with an emphasis on some particular compounds. This is a valuable resource for academic learners studying materials science and industrial coaters, who are concerned not only about fundamental aspects of oxynitride synthesis, but also by their innate material characteristics.