Download or read book Advanced Surface Acoustic Wave SAW Oscillator Investigation written by TRW DEFENSE AND SPACE SYSTEMS GROUP REDONDO BEACH CALIF. and published by . This book was released on 1977 with total page 55 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report describes the results of the development, fabrication, evaluation, and test performed on Advanced Surface Acoustic Wave (SAW) Oscillators. The main purpose of the SAW oscillator program was the fabrication and characterization of SAW oscillators operating at 250 MHz, 500 MHz, and 1 GHz. As the data presented shows, the performance of these oscillators closely approaches or exceeds the current state-of-the-art in neary every respect.
Download or read book Surface Acoustic Wave SAW Oscillator Investigation written by TRW SYSTEMS GROUP REDONDO BEACH CALIF. and published by . This book was released on 1975 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt: This final report describes the results of the development, fabrication, evaluation and test performed by TRW Systems. The main purpose of the SAW oscillator program was to investigate the key performance parameters of SAW oscillators and particularly their short, medium and long term stability. SAW oscillators were fabricated to operate at 250 MHz and 500 MHz, and their performance was evaluated and compared against theoretical predictions. As the data presented in the following sections will show, the performance of these oscillators closely approaches or exceeds the currently reported state-of-the-art in nearly every respect. Perhaps even more important, this performance is related to the fabrication processes in such a way that directions for still better performance can be clearly seen.
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.
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 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 SAW Oscillator Investigations Crystal Rotation Saw Oscillator Aging written by TRW DEFENSE AND SPACE SYSTEMS GROUP REDONDO BEACH CALIF. and published by . This book was released on 1978 with total page 57 pages. Available in PDF, EPUB and Kindle. Book excerpt: This final report describes the results of two surface acoustic wave oscillator studies. The first study demonstrated a new technique for varying the frequency of operation of SAW delay lines. The second study continued the ongoing aging test of four 250 MHz oscillators which was started in July 1975, and measured the aging rate of a new pair of oscillators fabricated using SAW delay lines with chrome/gold metallization. Future high performance communication systems will require frequency sources at UHF and microwave frequencies. SAW oscillators offer several advantages over bulk crystal oscillator multiplier chain type sources. The higher fundamental frequency capability of the SAW device eliminates the need for a multiplier chain, thus reducing size, weight, and power while providing superior phase noise characterisitics.
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 440 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 Surface Acoustic Wave Devices written by Valeri G. Dneprovski and published by Nova Science Publishers. This book was released on 2016 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Surface acoustic waves (SAWs) demonstrate simplicity of their excitation and receipt, as well as their availability to all propagation ways of signal branching and processing. SAW devices are divided into several main classes: filters for signal processing at intermediate frequencies, delay lines, resonators, filters with low losses for the input circuits of receiver, and antenna duplexers for the connected receivers. The SAW devices are not only able to conduct an effective signal processing, but also serve as a basis for multi-subsystems (matched filtering, signal processing, real-time Fourier transform processors, etc.). Additionally, SAW filters help scientists to realise the wide variety of frequency characteristics. Besides their unique electrical characteristics, SAW devices favorably differ from their analogs in small size, mechanical strength and high reliability, due to the quality of raw materials and their processing. The use of the photolithography and the achievements of group microelectronic technology in their production allow a researcher to achieve good reproducibility of parameters at relatively low cost. In addition, currently SAW devices are widely used in various sensors based on the SAW radio frequency identification. This book presents an attempt to generalise a multi-year experience on R&D of SAW devices. It develops original approaches directed at discovering solutions of technical problems, as development of various SAW devices are patented in Russia. Moreover, the book presents some experimental and theoretical research results.
Download or read book Surface Acoustic Waves for Signal Processing written by Michel Feldmann and published by Artech House Publishers. This book was released on 1989 with total page 440 pages. Available in PDF, EPUB and Kindle. Book excerpt: "An excellent survey of the field and combines theoretical and practical information -- a very enjoyable and useful work." -- IEEE Transactions on UFFC
Download or read book Acceleration Sensitivity and Mode Shape Relationship Tests of Voltage Controlled Surface Acoustic Wave Oscillator written by and published by . This book was released on 1995 with total page 35 pages. Available in PDF, EPUB and Kindle. Book excerpt: Acceleration sensitivity continues to be a significant problem is SAW oscillators. Reducing acceleration sensitivity of SAW oscillators requires an understanding of the nature and causes of acceleration sensitivity. One aspect of this is the correlation between acceleration sensitivity and the transverse mode behavior of SAW resonators. This report discusses the experimental investigation of such a correlation. A 98.5 MHz SAW resonator, for which the transverse modes have been previously measured at various frequencies, was mounted in a VCO and submitted to acceleration sensitivity tests at the frequencies of known transverse mode behavior. The VCO was designed in-house specifically for this investigation. The experimental results indicate that the acceleration sensitivity ot SAW resonators does not strongly depend on the transverse mode behavior. Acceleration sensitivity; mode shape; surface acoustic wave oscillator; voltage controlled oscillator.
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 Investigation of Shallow Bulk Acoustic Waves written by and published by . This book was released on 1981 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt: This final report summarizes the most important results of the Investigation of Shallow Bulk Acoustic Waves (SBAW) program. This program was conceived on the principle that SBAW technology could lead to devices that are superior to those presently available for frequency filtering and control. The primary objective was to establish whether this technology could provide devices that were as stable as the low frequency bulk wave resonators and yet operate at frequencies higher than the surface acoustic wave devices. The investigations have shown that SBAW devices can be built with excellent temperature stability, low spurious modes and at frequencies higher than those of SAW devices and bulk wave resonators.
Download or read book Acoustic Waves written by Don Dissanayake and published by BoD – Books on Demand. This book was released on 2010-09-28 with total page 480 pages. Available in PDF, EPUB and Kindle. Book excerpt: SAW devices are widely used in multitude of device concepts mainly in MEMS and communication electronics. As such, SAW based micro sensors, actuators and communication electronic devices are well known applications of SAW technology. For example, SAW based passive micro sensors are capable of measuring physical properties such as temperature, pressure, variation in chemical properties, and SAW based communication devices perform a range of signal processing functions, such as delay lines, filters, resonators, pulse compressors, and convolvers. In recent decades, SAW based low-powered actuators and microfluidic devices have significantly added a new dimension to SAW technology. This book consists of 20 exciting chapters composed by researchers and engineers active in the field of SAW technology, biomedical and other related engineering disciplines. The topics range from basic SAW theory, materials and phenomena to advanced applications such as sensors actuators, and communication systems. As such, in addition to theoretical analysis and numerical modelling such as Finite Element Modelling (FEM) and Finite Difference Methods (FDM) of SAW devices, SAW based actuators and micro motors, and SAW based micro sensors are some of the exciting applications presented in this book. This collection of up-to-date information and research outcomes on SAW technology will be of great interest, not only to all those working in SAW based technology, but also to many more who stand to benefit from an insight into the rich opportunities that this technology has to offer, especially to develop advanced, low-powered biomedical implants and passive communication devices.
Download or read book Advances In Surface Acoustic Wave Technology Systems Applications Vol 2 written by Tor A Fjeldly and published by World Scientific. This book was released on 2001-01-31 with total page 374 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.
Download or read book Advanced Design Technology ADME 2011 written by Jian Gao and published by Trans Tech Publications Ltd. This book was released on 2011-08-16 with total page 2788 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book, containing only papers subjected to strict peer-review by experts, covers the subject areas of innovative design methodology, product life-cycle design, intelligent optimization design, structural strength and robustness, reverse engineering, green design and manufacturing, design for sustainability, dynamics of machinery, new mechanisms and robotics, driven-train mechanisms, complex electro-mechanical system design, advanced CAE techniques and other related topics. It thus represents a veritable handbook guide to the topics covered.
Download or read book Surface Acoustic Wave SAW Sensors written by BCC Research and published by . This book was released on 2012-07 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
