Uhf And Microwave Frequency Acoustic Surface Wave Delay Lines
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Author | : Andrew J. Slobodnik |
Publisher | : |
Total Pages | : 96 |
Release | : 1973 |
Genre | : Acoustic surface waves |
ISBN | : |
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).
Author | : Thomas L. Szabo |
Publisher | : |
Total Pages | : 198 |
Release | : 1973 |
Genre | : Acoustic surface waves |
ISBN | : |
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).
Author | : |
Publisher | : |
Total Pages | : 1134 |
Release | : 1989 |
Genre | : Aeronautics |
ISBN | : |
Author | : Eric A. Ash |
Publisher | : Springer |
Total Pages | : 356 |
Release | : 1978 |
Genre | : Science |
ISBN | : |
With contributions by numerous experts
Author | : A. J. Slobodnik (Jr.) |
Publisher | : |
Total Pages | : 732 |
Release | : 1973 |
Genre | : Acoustic surface wave devices |
ISBN | : |
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).
Author | : |
Publisher | : |
Total Pages | : 464 |
Release | : 1975 |
Genre | : Oscillators, Crystal |
ISBN | : |
Author | : |
Publisher | : |
Total Pages | : 704 |
Release | : 1986 |
Genre | : Aeronautics |
ISBN | : |
Author | : Air Force Cambridge Research Laboratories (U.S.) |
Publisher | : |
Total Pages | : 336 |
Release | : 1972 |
Genre | : Geophysics |
ISBN | : |
Author | : Scripps Institution of Oceanography. Library |
Publisher | : |
Total Pages | : 980 |
Release | : 1980 |
Genre | : Marine biology |
ISBN | : |
Author | : Colin Campbell |
Publisher | : Academic Press |
Total Pages | : 660 |
Release | : 1998-06-17 |
Genre | : Art |
ISBN | : 9780121573409 |
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