Accession Number : AD0288272

Title :   ABSORPTION AND TRANSMISSION OF ELECTROMAGNETIC WAVES. PHASE J. INVESTIGATION OF INTERDEPENDENCE OF ABSORBER DESIGN PARAMETERS. (BROADBAND MAGNETIC LAYER ABSORBERS WITH SMALL THICKNESS)

Corporate Author : ROME AIR DEVELOPMENT CENTER GRIFFISS AFB N Y

Personal Author(s) : HELBERG,H.W.

Report Date : 30 SEP 1962

Pagination or Media Count : 1

Abstract : Two ferrite materals, Ferramic E and Ferramic E 1960, were used as magnetc layer absorbers. The measured reflection coefficients were below 10% in the frequency anges 4.2 x 10 to the 7th to 3.8 x 10 to the 8th and 2.4 x 10 to the 8th to 7.6 x 10 to the 8th, respectively. The thicknesses of layer were 0.88 cm and 0.5 cm respectively. These measurements confirmed the reflection coefficients calculated from the relaive dielectric constant and relative permeability. Various materials were tested with respect to their applicability as absorber material. (Author)

Descriptors :   *ELECTROMAGNETIC RADIATION, *FERRITES, BROADBAND, DIELECTRIC PROPERTIES, MATERIALS, MICROWAVES

Distribution Statement : APPROVED FOR PUBLIC RELEASE