Download or read book An Investigation of the Frequency Limitations of a Surface Wave Variable Delay Line written by Theodore H. Hopp and published by . This book was released on 1974 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt: An acoustic surface wave, variable delay line was invented at HDL. It consists of a fixed interdigital source transducer formed by metal deposited on a piezoelectric, photoconductive surface. The receiving transducer is formed by illuminating the photoconductive surface through a mask to create the image of a transducer where the signal is to be received. By making the optics movable, a variable path length and, hence, a variable delay time can be achieved. This paper derives a limit on the maximum usable frequency of such a device and proposes some modifications to the invention which will increase this upper frequency limit. The feasibility of the systems described herein have not been experimentally investigated, but they all seem to have merit. A continuously variable acoustic surface wave delay line operating at 1 GHz appears to be feasible.

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 692 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Surface Wave Parametric Processors and Long Delay Lines written by Stanford University. Microwave Laboratory and published by . This book was released on 1973 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book U S Government Research Reports written by and published by . This book was released on 1962 with total page 426 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Report on Research at AFCRL written by Air Force Cambridge Research Laboratories (U.S.) and published by . This book was released on 1970 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Investigation of Electrically Variable Delay Lines Ii written by S. R. HOH and published by . This book was released on 1961 with total page 1 pages. Available in PDF, EPUB and Kindle. Book excerpt: The problems and techniques of electrically variable delay lines, based on non-linear ferroelectrics, were studied. The frequency range of interest was from 30-1000 mc. An experimental helical delay line was developed for a minimum operating frequency of 200 mc. This line required the development of low loss materials of high permittivity and the development of low capacitance dielectric structures. (Author).

Download or read book Review Naval Research Laboratory Washington D C written by United States. Office of Naval Research and published by . This book was released on with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book International Aerospace Abstracts written by and published by . This book was released on 1982 with total page 1076 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Summaries of Projects Completed written by National Science Foundation (U.S.) and published by . This book was released on with total page 1108 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Government Reports Annual Index written by and published by . This book was released on 1975 with total page 882 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Research and Development Technical Handbook written by and published by . This book was released on 1961 with total page 838 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Design of Surface Wave Delay Lines with Interdigital Transducers written by Stanford University. Microwave Laboratory and published by . This book was released on 1969 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Review written by and published by . This book was released on 1970 with total page 710 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Piezoelectricity written by C. Rosen and published by Springer Science & Business Media. This book was released on 1992-02-24 with total page 558 pages. Available in PDF, EPUB and Kindle. Book excerpt: This collection of 32 major review papers provides a complete understanding of the physics of piezoelectricity. With a thorough overview of applications and a major section exploring measurements and standards, this volume gives a systematic derivation of piezoelectric coefficients and equations of state for coupling mechanical, electrical, and thermal fields. A useful graduate text for design engineers, materials scientists, chemists, metallurgists, and condensed matter physicists.

Download or read book Government reports annual index written by and published by . This book was released on 199? with total page 852 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Government Reports Index written by and published by . This book was released on 1975 with total page 864 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Government Reports Announcements Index written by and published by . This book was released on 1975 with total page 774 pages. Available in PDF, EPUB and Kindle. Book excerpt: