DID YOU KNOW? DTIC has over 3.5 million final reports on DoD funded research, development, test, and evaluation activities available to our registered users. Click
HERE to register or log in.
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)
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
Distribution Statement:
APPROVED FOR PUBLIC RELEASE