Accession Number:
AD0272110
Title:
ABSORPTION AND TRANSMISSION OF ELECTROMAGNETIC WAVES. PHASE J. INVESTIGATION OF INTERDEPENDENCE OF ABSORBER DESIGN PARAMETERS
Descriptive Note:
Corporate Author:
GOETTINGEN UNIV (WEST GERMANY)
Personal Author(s):
Report Date:
1961-09-30
Pagination or Media Count:
1.0
Abstract:
IT IS SHOWN, THAT A THIN, HOMOGENEOUS, DISSIPATIVE LAYER IN FRONT OF A METAL PLATE ABSORBS ELECTROMAGNETIC WAVES OVER A WIDE RANGE OF FREQUENCIES reflection coefficient R equal to or less than 10. The frequency range is extended towards higher frequencies by arranging the dissipative layer a small distance from the metal plate. The frequency interval with optimal matching R equal to or less than 10 calculated from measured values of relative dielectric constant and relative permeability of the ferrite Ferramic E is 110 without and 120 with air layer between metal plate and dissipative layer. Measurements with a similar ferrite, Ferramic E 1960, in principle confirm the predetermined results. Author