Accession Number : AD0477305

Title :   INVESTIGATION OF LARGE SIGNAL MICROWAVE EFFECTS IN FERROELECTRIC MATERIALS.

Descriptive Note : Quarterly rept. no. 6, 1 Feb-30 Apr 65,

Corporate Author : SPERRY MICROWAVE ELECTRONICS CLEARWATER FL

Personal Author(s) : Horton, J. B.

Report Date : MAY 1965

Pagination or Media Count : 34

Abstract : A brief review of theory and derived expressions for dielectric constant, loss tangent and related parameters is presented. Information concerning the principal material studied, polycrystalline (Ba(0.8)-Sr(0.2)TiO3 is included. Results of measurements taken at 35 Gc and 10 Gc are presented in the following curves and table: (1) 35 Gc: plot of insertion loss and phase shift as a function of sample thickness; (2) 35 Gc: plot of dielectric constant and loss tangent as a function of sample temperatures; (3) 10 Gc: plot of insertion loss and phase shift as a function of sample thickness; (4) 10 Gc: three plots of dielectric constant and loss tangent as a function of sample temperature; (5) summary of dielectric constant and loss tangent measurements made at 35 Gc and 10 Gc. Progress made in large signal testing at 35 Gc is reviewed and preliminary observations and conclusions are reported. (Author)

Descriptors :   *FERROELECTRIC MATERIALS, *FERROELECTRIC CRYSTALS, MICROWAVE FREQUENCY, MICROWAVES, DIELECTRICS, CERAMIC MATERIALS, TITANATES, BARIUM, STRONTIUM, SINGLE CRYSTALS, V BAND, X BAND, MICROWAVE EQUIPMENT, WAVE PROPAGATION, DIELECTRIC PROPERTIES.

Subject Categories : Electrical and Electronic Equipment
      Crystallography

Distribution Statement : APPROVED FOR PUBLIC RELEASE