Accession Number : AD0864436
Title : Transmission Line Techniques for Description of Microwave Acoustic Resonances in Thin Piezoelectric Disks.
Descriptive Note : Physical sciences research papers,
Corporate Author : AIR FORCE CAMBRIDGE RESEARCH LABS HANSCOM AFB MA
Personal Author(s) : Slobodnik, Andrew J., Jr
Report Date : NOV 1969
Pagination or Media Count : 27
Abstract : Standard transmission line theory and techniques are used to develop a quantitative description of microwave acoustic resonances in thin piezoelectric disks. An equivalent circuit is derived from basic electromagnetic and acoustic principles for the vibration of such a disk in the gap of a reentrant cavity. The elements of this circuit are given in terms of physical parameters of the disk and cavity. Experimental results confirming the theory are also presented including observation of S-band resonances in X-cut, Y-cut, AC-cut and BC-cut quartz and Z-cut LiNbO3. By using the theoretical model to relate these results back to fundamental quantities, an estimate of the acoustic attenuation is obtained for the various crystal cuts. (Author)
Descriptors : (*PIEZOELECTRIC CRYSTALS, S BAND), (*RESONATORS, ELECTRICAL NETWORKS), TRANSMISSION LINES, CRYSTAL OSCILLATORS, LITHIUM COMPOUNDS, NIOBATES.
Subject Categories : Electrical and Electronic Equipment
Distribution Statement : APPROVED FOR PUBLIC RELEASE