Microwave Acoustic And Bulk Device Technique Studies
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Microwave Acoustic And Bulk Device Technique Studies
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Author : Stanford University. Microwave Laboratory
language : en
Publisher:
Release Date : 1971
Microwave Acoustic And Bulk Device Technique Studies written by Stanford University. Microwave Laboratory and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1971 with Acoustic surface wave devices categories.
Microwave Acoustic And Bulk Device Technique Studies
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Author :
language : en
Publisher:
Release Date : 1973
Microwave Acoustic And Bulk Device Technique Studies written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1973 with categories.
This report is the second Interim Technical Report on the contract. It covers research done on acoustic surface wave devices during the six month period 1 May to 31 October 1974. The objective of the research is the generation of new device concepts and the analytical and experimental verification as to their ultimate usefulness for signal processing applications. Improvements were made in acoustic surface wave convolver efficiency. The surface wave convolver can be used for performing convolution/correlation, time reversal and Fourier analysis of arbitrary signals. A new approach which may lead to low cost, simplified analog/digital conversion has been devised. This combines a surface acoustic wave delay line and external digital circuitry.
Microwave Acoustic And Bulk Device Technique Studies
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Author :
language : en
Publisher:
Release Date : 1970
Microwave Acoustic And Bulk Device Technique Studies written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1970 with Acoustic surface wave devices categories.
Microwave Acoustic And Bulk Device Technique Studies
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Author : Stanford University. Microwave Laboratory
language : en
Publisher:
Release Date : 1973
Microwave Acoustic And Bulk Device Technique Studies written by Stanford University. Microwave Laboratory and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1973 with Acoustic surface wave devices categories.
Microwave Acoustic And Bulk Device Technique Studies
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Author : Stanford University. Ginzton Laboratory
language : en
Publisher:
Release Date : 1976
Microwave Acoustic And Bulk Device Technique Studies written by Stanford University. Ginzton Laboratory and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1976 with categories.
Microwave Acoustic Bulk Device Technique Studies
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Author :
language : en
Publisher:
Release Date : 1975
Microwave Acoustic Bulk Device Technique Studies written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1975 with categories.
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.
Microwave Acoustic And Bulk Device Techniques Studies
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Author : Marvin Chodorow
language : en
Publisher:
Release Date : 1968
Microwave Acoustic And Bulk Device Techniques Studies written by Marvin Chodorow and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1968 with categories.
The objectives of the work are: to advance new theory and techniques of microwave acoustic, magnetoelastic and bulk semiconductor devices for application to radar, communications, and instrumentation systems. This investigation presently includes the following projects: Thin film transducers; Acoustic parametric amplification; Adiabatic magnetoelastic conversion in the time domain; Guided acoustic waves; Magnetically dependent sound wave interactions.
Microwave Acoustic And Bulk Device Technique Studies
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Author : Stanford University. Microwave Laboratory
language : en
Publisher:
Release Date : 1975
Microwave Acoustic And Bulk Device Technique Studies written by Stanford University. Microwave Laboratory and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1975 with categories.
Microwave Acoustics Device Study
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Author : K. M. Lakin
language : en
Publisher:
Release Date : 1986
Microwave Acoustics Device Study written by K. M. Lakin and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1986 with categories.
This final report summarizes the results of a single one year study of the device physics aspects of the thin film bulk acoustic wave resonator. The study involved high Q trapped energy resonators, zinc diffusions in GaAs as a precursor to temperature coefficient studies, and refinements to the two dimensional numerical analysis modeling of microwave acoustic boundary value problems by the finite difference method. Keywords: Microwave acoustics, Thin film resonators, Bulk acoustic waves, Diffusion of Zn, and GaAs.
Scientific And Technical Aerospace Reports
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Author :
language : en
Publisher:
Release Date : 1973
Scientific And Technical Aerospace Reports written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1973 with Aeronautics categories.