Accession Number : AD0482776

Title :   RESEARCH INTO NEW APPROACHES FOR VHF FILTER CRYSTALS.

Descriptive Note : Quarterly rept. no. 10, 16 Oct 65-15 Jan 66,

Corporate Author : CLEVITE CORP CLEVELAND OH ELECTRONIC RESEARCH DIV

Personal Author(s) : Koneval, D. J. ; Gerber, W. J.

Report Date : MAY 1966

Pagination or Media Count : 30

Abstract : The fabrication of 100 MHz, 5th harmonic mode multi-electrode resonators is discussed. The effects of wafer inhomogeneity on both the Qm and frequency response of individual resonators are given. A relation between the unwanted responses of the unelectroded wafer, frequency-lowering and resonator Qm is also presented. Several large area, single electrode resonators were prepared using conventional fabrication techniques. These 20 MNHz fundamental mode and 60 MHz 3rd harmonic mode resonators will be compared with inverted mesa resonators having the same electrode configuration. The effect of a dielectric tuning layer on the temperature stability of AT-cut quartz resonators is also mentioned. (Author)

Descriptors :   *CRYSTAL FILTERS), (*QUARTZ RESONATORS, QUARTZ, HIGH FREQUENCY, VERY HIGH FREQUENCY, RESONANT FREQUENCY, CRYSTAL GROWTH, ELECTRODES, VIBRATION, DAMPING, TEMPERATURE, PROCESSING, DIELECTRICS, SILICON COMPOUNDS, OXIDES.

Subject Categories : Electrical and Electronic Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE