Accession Number:

AD0466293

Title:

FEASIBILITY STUDY OF SHIELDING TECHNIQUES.

Descriptive Note:

Final rept., 1 Jun 63-30 Nov 64,

Corporate Author:

BOEING CO SEATTLE WA

Personal Author(s):

Report Date:

1965-07-08

Pagination or Media Count:

189.0

Abstract:

Two significant results of basic utility in understanding and designing electromagnetic shielding are presented along with two resulting patent disclosures. It also details the basic theory and analytic and experimental approaches employed in obtaining these results. A technique based upon sound engineering principles was developed for the design of shielding enclosures. Substantiating though limited design data has been obtained. The basic approach was to consider transmission of wave energy through a shielding barrier in a manner analogous to conventional transmission-line theory. During the performance of the study, resonance effects in a number of shielding enclosures were observed in the frequency range of 5 to 150 kc. These are explained as resulting from large differences in phase shift between parallel transmission paths one through the shielding material and the other through seams under certain conditions of transmission. Since these effects are believed to be newly discovered, they serve as the basis for two patent disclosures made under the program. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE