Download or read book Acoustic Surface Wave Resonators and Filters on ST Quartz written by William R. Shreve and published by . This book was released on 1977 with total page 43 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of this program is to maximize the usefulness of surface acoustic wave (SAW) resonators for applications to filter and oscillator circuits. This program focuses on improving fabrication to yield the lowest possible aging rate, designing a 70-MHz resonator to achieve the highest possible Q, and examining the use of resonators at higher frequencies with a 600-MHz filter. The program was divided into three sections: aging studies, high-Q studies, and a high-frequency study. In the area of aging, the results of a previous study with the Office of Naval Research were used to determine the optimum fabrication and mounting procedure for SAW resonators. The goal of this work was to determine the aging rate for resonators made in this manner and to determine the effect of elevated temperatures on this rate. This data would then be used to determine the best preaging cycle to obtain long term stable operation. In addition, the effects of tuning with ZnO and of an arbitrary preaging cycle were measured. In the high-Q studies, the sources of loss in the resonator were analyzed and an approach was identified to achieve the contract goals. The devices built under this contract do not meet the contract goals, but the sources of additional loss have been identified. The devices built under this section have been made into one-pole filters. The high-Q results show that the loss mechanisms in grooved quartz resonators are well understood, but further effort is needed in the area of reflector weighting for bulk scattering suppression and for improved filter out-of-band rejection. The filters built under this study exhibited a maximum Q of 40,000 in vacuum.
Download or read book Surface Acoustic Wave Filters written by David Morgan and published by Academic Press. This book was released on 2010-07-27 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt: Surface Acoustic Wave Filters gives the fundamental principles and device design techniques for surface acoustic wave filters. It covers the devices in widespread use today: bandpass and pulse compression filters, correlators and non-linear convolvers and resonators. The newest technologies for low bandpass filters are fully covered such as unidirectional transducers, resonators in impedance element filters, resonators in double-mode surface acoustic wave filters and transverse-coupled resonators using waveguides. The book covers the theory of acoustic wave physics, the piezoelectric effect, electrostatics at a surface, effective permittivity, piezoelectric SAW excitation and reception, and the SAW element factor. These are the main requirements for developing quasi-static theory, which gives a basis for the non-reflective transducers in transversal bandpass filters and interdigital pulse compression filters. It is also needed for the reflective transducers used in the newer devices. A thorough revision of a classic on surface acoustic wave filters first published in 1985 and still in print Uniquely combines easy-to-understand principles with practical design techniques for all the devices in widespread use today Complete coverage of all the latest devices which are key to mobile phones, TVs and radar systems Includes a new foreword by Sir Eric Albert Ash
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.
Download or read book Design and Analysis of Surface Acoustic Wave Resonators and Resonator Filters written by Thor Thorvaldsson and published by . This book was released on 1988 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Advances In Surface Acoustic Wave Technology Systems And Applications Volume 1 written by Tor A Fjeldly and published by World Scientific. This book was released on 2000-09-29 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.
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
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 2001 with total page 380 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, these 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 1, presents an overview of recent advances in SAW technology, systems and applications by some of the foremost researchers in this exciting field. Contents: Coupling-of-Modes Analysis of SAW Devices (V Plessky & J Koskela); Theory and Applications of Green''s Functions (A R Baghai-Wadji); New Piezoelectric Substrates for SAW Devices (J Kosinski); Pseudo and High Velocity Pseudo SAWs (M P da Cunha); SAW Devices Beyond 5 GHz (H Odagawa & K Yamanouchi); Wireless SAW Identification and Sensor Systems (F Schmidt & G Scholl); Interaction of Surface Acoustic Waves, Electrons, and Light (A Wixforth). Readership: Graduate students, researchers and academics in device and circuit design, as well as designers of mobile communications systems.
Download or read book Multilayer Integrated Film Bulk Acoustic Resonators written by Yafei Zhang and published by Springer Science & Business Media. This book was released on 2012-08-28 with total page 159 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mulilayer Integrated Film Bulk Acoustic Resonators mainly introduces the theory, design, fabrication technology and application of a recently developed new type of device, multilayer integrated film bulk acoustic resonators, at the micro and nano scale involving microelectronic devices, integrated circuits, optical devices, sensors and actuators, acoustic resonators, micro-nano manufacturing, multilayer integration, device theory and design principles, etc. These devices can work at very high frequencies by using the newly developed theory, design, and fabrication technology of nano and micro devices. Readers in fields of IC, electronic devices, sensors, materials, and films etc. will benefit from this book by learning the detailed fundamentals and potential applications of these advanced devices. Prof. Yafei Zhang is the director of the Ministry of Education’s Key Laboratory for Thin Films and Microfabrication Technology, PRC; Dr. Da Chen was a PhD student in Prof. Yafei Zhang’s research group.
Download or read book Analytical Investigations of the Acceleration Sensitivity of Acoustic Surface Wave Resonators written by Harry F. Tiersten and published by . This book was released on 1988 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: An analysis of the normal and in-plane acceleration sensitivity of acoustic surface wave resonators supported uniformly at the base has been performed. The calculations were not performed over the actual surface wave mode shape, but only over a typical wavelength because a convenient representation of the mode shape was not yet available. In order to obtain information on the acceleration sensitivity of surface wave resonators supported along rectangular edges relatively quickly, somewhat crude analyses of the normal and in-plane acceleration sensitivities of ST-cut quartz surface wave resonators were performed. A variational analysis of the reflection of surface waves by arrays of reflecting grooves has been performed and the transmission matrix for the grooved array has been obtained. Analysis of the normal acceleration sensitivity of ST-cut quartz surface wave resonators with the substrate extending beyond the supports has been performed. Keywords: Acoustic surface wave resonators; Surface wave resonators; Wave resonators; Resonators; Quartz. (jhd).
Download or read book Acoustic Surface Waves written by Eric A. Ash and published by Springer. This book was released on 1978 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt: With contributions by numerous experts
Download or read book Proceedings of the Annual Symposium on Frequency Control written by and published by . This book was released on 1975 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Research in Progress written by and published by . This book was released on 1984 with total page 604 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 328 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.
Download or read book Technical Reports Awareness Circular TRAC written by and published by . This book was released on 1987-02 with total page 746 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Surface Wave Filters written by Herbert Matthews and published by John Wiley & Sons. This book was released on 1977 with total page 554 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Applied Mechanics Reviews written by and published by . This book was released on 2004 with total page 604 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Technical Abstract Bulletin written by and published by . This book was released on 1978 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt:
