Accession Number : AD0487505

Title :   RESEARCH INTO NEW APPROACHES FOR VHF FILTER CRYSTALS.

Descriptive Note : Quarterly rept. no. 11, 16 Jan-15 Apr 66,

Corporate Author : CLEVITE CORP CLEVELAND OH ELECTRONIC RESEARCH DIV

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

Report Date : AUG 1966

Pagination or Media Count : 32

Abstract : Efforts concern development of quartz resonators for VHF filter crystals with strong responses, useful ranges of dynamic characteristics, and with suppression of unwanted modes of vibration and quartz wafer structures wherein two or more independent resonators are achieved within a single monolithic wafer. Frequency response curves of representatives of each sample group are presented. The effects of insulating film tuning techniques on resonator motional parameters, frequency-temperature dependence, aging rate and Q sub m are discussed and sample data included.

Descriptors :   *CRYSTAL FILTERS), (*QUARTZ RESONATORS, DIELECTRIC FILMS, VERY HIGH FREQUENCY, SUBSTRATES, RESONANT FREQUENCY, RESPONSE, TEMPERATURE, AGING(MATERIALS), SILICON COMPOUNDS, OXIDES, FILMS, ELECTRODES.

Subject Categories : Electrical and Electronic Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE