New Microwave Surface Acoustic Wave Transducer

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New Microwave-Surface-Acoustic-Wave Transducer

Author : Robert E. Lee
Publisher :
ISBN 13 :
Total Pages : 81 pages
Book Rating : 4.:/5 (227 download)

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Book Synopsis New Microwave-Surface-Acoustic-Wave Transducer by : Robert E. Lee

Download or read book New Microwave-Surface-Acoustic-Wave Transducer written by Robert E. Lee and published by . This book was released on 1974 with total page 81 pages. Available in PDF, EPUB and Kindle. Book excerpt: The report describes the development of a novel electron-beam image-projection exposure apparatus termed the 'slit-lens' system that has been used to fabricate high-resolution patterns for use as microwave-frequency surface-acoustic-wave transducers. Further research efforts include the development of ancillary techniques for making: (1) the intermediate electron-transmission masks required by the slit-lens system, and (2) the thin films necessary for production of metallic patterns on piezoelectric substrates. Various high-frequency surface-wave-transducer structures have been fabricated and electrically tested. The new 'hybrid-grating' transducer has been produced and its performance compared to that of conventional interdigital transducers (at microwave frequencies). A theoretical analysis of the hybrid and grating transducer has been carried out and the input impedance of these transducers has been compared with that of a conventional interdigital structure. Particular attention was paid to the effect of parasitic capacitance on the performance of the various transducers. (Modified author abstract).

Microwave Acoustic and Bulk Device Technique Studies

Author : Stanford University. Microwave Laboratory
Publisher :
ISBN 13 :
Total Pages : 30 pages
Book Rating : 4.F/5 ( download)

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Book Synopsis Microwave Acoustic and Bulk Device Technique Studies by : Stanford University. Microwave Laboratory

Download or read book Microwave Acoustic and Bulk Device Technique Studies written by Stanford University. Microwave Laboratory and published by . This book was released on 1971 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Wide Band Acoustic Surface Wave Couplers at Microwave Frequencies

Author : Stanford University. Microwave Laboratory
Publisher :
ISBN 13 :
Total Pages : 232 pages
Book Rating : 4.F/5 ( download)

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Book Synopsis Wide Band Acoustic Surface Wave Couplers at Microwave Frequencies by : Stanford University. Microwave Laboratory

Download or read book Wide Band Acoustic Surface Wave Couplers at Microwave Frequencies written by Stanford University. Microwave Laboratory and published by . This book was released on 1969 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Microwave Acoustic and Bulk Device Technique Studies

Author : Stanford University. Microwave Laboratory
Publisher :
ISBN 13 :
Total Pages : 36 pages
Book Rating : 4.F/5 ( download)

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Book Synopsis Microwave Acoustic and Bulk Device Technique Studies by : Stanford University. Microwave Laboratory

Download or read book Microwave Acoustic and Bulk Device Technique Studies written by Stanford University. Microwave Laboratory and published by . This book was released on 1975 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Surface Acoustic Wave Devices for Mobile and Wireless Communications, Four-Volume Set

Author : Colin Campbell
Publisher : Academic Press
ISBN 13 : 9780121573409
Total Pages : 660 pages
Book Rating : 4.5/5 (734 download)

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Book Synopsis Surface Acoustic Wave Devices for Mobile and Wireless Communications, Four-Volume Set by : Colin Campbell

Download or read book Surface Acoustic Wave Devices for Mobile and Wireless Communications, Four-Volume Set written by Colin Campbell and published by Academic Press. This book was released on 1998-06-17 with total page 660 pages. Available in PDF, EPUB and Kindle. Book excerpt: Written for readers with or without surface acoustic wave (SAW) experience, this book covers a wide range of SAW filter- and device-design techniques as well as applications to mobile and wireless circuitry. It provides numerous references and worked examples on SAW devices to highlight various design aspects, and contains illustrations from many leading electronic companies around the world. The first half of the book covers the principles of SAW devices. The secondhalf focuses on applications to the mobile/wireless field, including SAW devices for antenna duplexers, RF and IF filters for cellular cordless phones, front-end filters for wireless transceivers, fixed and tunable oscillators, filters for on-board satellite communications, as well as coding and convolvers for indoor/outdoor spread-spectrum communications. Surface Acoustic Wave Devices for Mobile and Wireless Communications serves as an excellent sourcebook for engineers and designers with some SAW background, or for technical staff with no prior knowledge of SAW devices who need to know how this technology can help their products. It can be used as a textbook for senior and graduate students engaged in the study of signal processing techniques and systems for mobile communications. Key Features * First SAW text applied to mobile and wireless communications * Written by an award-winning researcher with over 20 years of SAW device experience * Presents the theory and design of major SAW devices for mobile/wireless communications as applied to some of the major telecommunication standards * Accessible to both engineering and scientific readers with or without prior SAW device knowledge

Surface Acoustic Wave Devices in Telecommunications

Author : Ken-Ya Hashimoto
Publisher : Springer Science & Business Media
ISBN 13 : 3662042231
Total Pages : 339 pages
Book Rating : 4.6/5 (62 download)

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Book Synopsis Surface Acoustic Wave Devices in Telecommunications by : Ken-Ya Hashimoto

Download or read book Surface Acoustic Wave Devices in Telecommunications written by Ken-Ya Hashimoto and published by Springer Science & Business Media. This book was released on 2013-04-17 with total page 339 pages. Available in PDF, EPUB and Kindle. Book excerpt: Surface acoustic wave (SAW) devices are widely used in mobile communications, a rapidly evolving market. This book gives an overview on the latest SAW technologies with an emphasis on the design and simulation of devices, such as resonator-based devices employing the SH-type leaky SAW.

Microwave Surface Acoustic Wave Materials

Author : John F. Vetelino
Publisher :
ISBN 13 :
Total Pages : 190 pages
Book Rating : 4.:/5 (11 download)

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Book Synopsis Microwave Surface Acoustic Wave Materials by : John F. Vetelino

Download or read book Microwave Surface Acoustic Wave Materials written by John F. Vetelino and published by . This book was released on 1980 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt: The acoustic wave properties of several piezoelectric crystals and a layered structure have been theoretically and experimentally investigated for possible application in microwave acoustic devices. A search was made for crystals and layered structures having one or more of the following properties: (i) temperature compensation, (ii) high piezoelectric coupling, (iii) low power flow angle, (iv) low loss and (v) low or high acoustic wave velocities. The acoustic waves studied were the bulk acoustic waves (BAW), the surface acoustic waves (SAW), the pseudo SAW (PSAW), the plate modes and the surface skimming bulk waves (SSBW). The wave properties studied were the velocity, piezoelectric coupling, the temperature coefficient of delay, diffraction and attenuation. The layered geometries examined studied included fused silica on LiNbO3 and gold, aluminum and copper layers on quartz. The overlay structures were found to be more temperature stable than the single crystals. A theory describing the spectrum of acoustic waves emanating from an interdigital transducer was developed. Several promising cuts for SSBW in quartz were identified and studied both theoretically and experimentally. Finally, various prototype SSBW devices were fabricated and tested.

Surface Acoustic Wave Devices and Their Signal Processing Applications

Author : Colin Campbell
Publisher : Elsevier
ISBN 13 : 0323148662
Total Pages : 485 pages
Book Rating : 4.3/5 (231 download)

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Book Synopsis Surface Acoustic Wave Devices and Their Signal Processing Applications by : Colin Campbell

Download or read book Surface Acoustic Wave Devices and Their Signal Processing Applications written by Colin Campbell and published by Elsevier. This book was released on 2012-12-02 with total page 485 pages. Available in PDF, EPUB and Kindle. Book 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.

UHF and Microwave Frequency Acoustic Surface Wave Delay Lines

Author : Andrew J. Slobodnik
Publisher :
ISBN 13 :
Total Pages : 96 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis UHF and Microwave Frequency Acoustic Surface Wave Delay Lines by : Andrew J. Slobodnik

Download or read book UHF and Microwave Frequency Acoustic Surface Wave Delay Lines written by Andrew J. Slobodnik and published by . This book was released on 1973 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt: Small, lightweight, reliable, low cost acoustic surface wave delay lines are particularly useful in a variety of military applications including electronic sensing and communications. The purpose of the report is to provide detailed comprehensive procedures and theories for the optimum design of UHF and microwave frequency acoustic surface wave delay lines consisting of two identical, periodic, uniform width, interdigital transducers. The circuit model used to characterize device performance as a function of frequency includes a lossy tuning inductor, finite resistivity transducer fingers, and parasitic shunt capacitance. Surface wave propagation loss is also included. (Modified author abstract).

Acoustic Surface Wave Diffraction and Beam Steering

$Download Acoustic Surface Wave Diffraction and Beam Steering PDF Online Free$

Author : Thomas L. Szabo
Publisher :
ISBN 13 :
Total Pages : 198 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Acoustic Surface Wave Diffraction and Beam Steering by : Thomas L. Szabo

Download or read book Acoustic Surface Wave Diffraction and Beam Steering written by Thomas L. Szabo and published by . This book was released on 1973 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt: The report contains a detailed description of diffraction in acoustic surface wave devices. This source of loss is highly important in the design and realization of bandpass filters, long time delay lines and other devices for electronic sensors and communications systems. A complete review of acoustic surface wave diffraction on anisotropic substrates is presented. Full experimental verification of theory is provided. Complete computer program listings and descriptions are provided. The limits of applicability of the parabolic velocity surface theory are quantitatively delineated. Universal diffraction loss design curves are given for all parabolic materials. A limitation in the use of the exact angular spectrum of waves theory occurs for materials having a power flow angle slope approximately - 1 unless the velocity surfaces are very accurately known. Both YZ LiNbO3 and 16-1/2 degree double rotated LiNbO3 fall in this category. Approximate diffraction loss design curves are given for YZ LiNbO3. A complete tabular summary of all important material properties affecting acoustic surface wave device design is included. (Author).

Microwave Acoustics Handbook

Author : A. J. Slobodnik (Jr.)
Publisher :
ISBN 13 :
Total Pages : 732 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Microwave Acoustics Handbook by : A. J. Slobodnik (Jr.)

Download or read book Microwave Acoustics Handbook written by A. J. Slobodnik (Jr.) and published by . This book was released on 1973 with total page 732 pages. Available in PDF, EPUB and Kindle. Book excerpt: Information essential for the design of acoustic surface wave filters, signal processors, and other miniature, low cost, reliable devices for use in communications and electronic sensing is given in this report. Computations of surface wave velocity and electromechanical power flow angle, and estimates of surface wave coupling to interdigital transducers are given for various orientations of the following surface wave substrate materials: Ba2NaNb5O15, Bi12GeO20, CdS, Diamond, Eu3Fe5O15, Gadolinium Gallium Garnet, GaAs, Germanium, InSb, InAs, PbS, LiNbO3, MgO, Quartz, Rutile, Sapphire, Silicon, Spinel, TeO2, YAG, YGaG, YIG, and ZnO. Particular cuts of interest are then chosen for more detailed numerical calculations of mechanical and electrical parameters governing acoustic wave propagation in crystalline media. Similar data is given for common metals. A list of material constants and a bibliography of 520 surface wave papers are also included. (Author).

Microwave Acoustic Bulk Device Technique Studies

Author :
Publisher :
ISBN 13 :
Total Pages : 30 pages
Book Rating : 4.:/5 (227 download)

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Book Synopsis Microwave Acoustic Bulk Device Technique Studies by :

Download or read book Microwave Acoustic Bulk Device Technique Studies written by and published by . This book was released on 1975 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the previous report results on a ZnO on Si convolver were described, where a conversion efficiency of - 55 dBm was obtained. During the reporting period a new type of broadband matching network which makes it possible to increase the bandwidth of the interdigital transducers from 8 to 22 MHz were designed and tested. New types of diffusion layer transducers using p(+) elements laid down in Si were also tested; these can be switched on and off by incident light or by changing an applied dc potential. The work on the diffusion layer transducers to improve their efficiency is also continuing, and to use a new dc sputtering station to make more reproducible convolver devices is also intended. In the last report a new approach to analog/digital conversion was introduced. It operates by comparing a reference signal, having a linearly varying amplitude versus time, with the analog input signal whose amplitude is to be digitized. The reference signal is produced by passing an rf tone pulse through an interdigital acoustic wave transducer. The basic convolution property of the transducer results in the production of the required linearly varying ramp. An integrated circuit comparator and counter are used to produce the digital readout. During the reporting period a first experimental model has been constructed, utilizing a 50 MHz surface acoustic wave delay line, and using four-bit words, which has established the principle of the device.

Advances in Surface Acoustic Wave Technology, Systems and Applications

Author : Clemens C. W. Ruppel
Publisher : World Scientific
ISBN 13 : 9810244142
Total Pages : 325 pages
Book Rating : 4.8/5 (12 download)

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Book Synopsis Advances in Surface Acoustic Wave Technology, Systems and Applications by : Clemens C. W. Ruppel

Download or read book Advances in Surface Acoustic Wave Technology, Systems and Applications written by Clemens C. W. Ruppel and published by World Scientific. This book was released on 2000 with total page 325 pages. Available in PDF, EPUB and Kindle. Book excerpt: Surface acoustic wave (SAW) devices are recognized for their versatility and efficiency in controlling and processing electrical signals. This has resulted in a multitude of device concepts for a wide range of signal processing functions, such as delay lines, filters, resonators, pulse compressors, convolvers, and many more. As SAW technology has found its way into mass market products such as TV receivers, pagers, keyless entry systems and cellular phones, the production volume has risen to millions of devices produced every day. At the other end of the scale, there are specialized high performance signal processing SAW devices for satellite communication and military applications, such as radar and electronic warfare. This volume, together with Volume 2, presents an overview of recent advances in SAW technology, systems and applications by some of the foremost researchers in this exciting field.

Acoustic Scattering Parameters of the Electrically Loaded Interdigital Surface Wave Transducer

Author : Stanford University. Microwave Laboratory
Publisher :
ISBN 13 :
Total Pages : 26 pages
Book Rating : 4.F/5 ( download)

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Book Synopsis Acoustic Scattering Parameters of the Electrically Loaded Interdigital Surface Wave Transducer by : Stanford University. Microwave Laboratory

Download or read book Acoustic Scattering Parameters of the Electrically Loaded Interdigital Surface Wave Transducer written by Stanford University. Microwave Laboratory and published by . This book was released on 1969 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Scientific and Technical Aerospace Reports

Author :
Publisher :
ISBN 13 :
Total Pages : 240 pages
Book Rating : 4.:/5 (3 download)

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Book Synopsis Scientific and Technical Aerospace Reports by :

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1990 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Modeling and Measurement Methods for Acoustic Waves and for Acoustic Microdevices

Author : Marco G. Beghi
Publisher : BoD – Books on Demand
ISBN 13 : 9535111892
Total Pages : 616 pages
Book Rating : 4.5/5 (351 download)

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Book Synopsis Modeling and Measurement Methods for Acoustic Waves and for Acoustic Microdevices by : Marco G. Beghi

Download or read book Modeling and Measurement Methods for Acoustic Waves and for Acoustic Microdevices written by Marco G. Beghi and published by BoD – Books on Demand. This book was released on 2013-08-28 with total page 616 pages. Available in PDF, EPUB and Kindle. Book 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.

Physics, Chemistry and Technology of Solid State Gas Sensor Devices

Author : Andreas Mandelis
Publisher : John Wiley & Sons
ISBN 13 : 9780471558859
Total Pages : 354 pages
Book Rating : 4.5/5 (588 download)

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Book Synopsis Physics, Chemistry and Technology of Solid State Gas Sensor Devices by : Andreas Mandelis

Download or read book Physics, Chemistry and Technology of Solid State Gas Sensor Devices written by Andreas Mandelis and published by John Wiley & Sons. This book was released on 1993-10-06 with total page 354 pages. Available in PDF, EPUB and Kindle. Book excerpt: Research and development of solid state gas sensor devices began in the 1950s with several uncoordinated independent efforts. The number and pace of these investigations later accelerated in response to increasing pressure placed on the environment and public health by industrial activities. Since 1970, several thousand articles have been written on the subject, and laboratories around the globe have introduced novel methodologies and devices to address needs associated with particular technological developments. Despite the rapid development of this important new technology, very little has been done to review and coordinate data related to sensor science and technology itself. Physics, Chemistry and Technology of Solid State Gas Sensor Devices focuses on the underlying principles of solid state sensor operation and reveals the rich fabric of interdisciplinary science that governs modern sensing devices. Beginning with some historical and scientific background, the text proceeds to a study of the interactions of gases with surfaces. Subsequent chapters present detailed information on the fabrication, performance, and application of a variety of sensors. Types of sensor devices discussed include: Gas-sensitive solid state semiconductor sensors Photonic and photoacoustic gas sensors Fiber optic sensors Piezoelectric quartz crystal microbalance sensors Surface acoustic wave sensors Pyroelectric and thermal sensors For analytical chemists using solid state sensors in environment-related analysis, and for electrical engineers working with solid state sensors, this book will expand and unify their understanding of these devices, both in theory and practice.