Accession Number : AD0650830

Title :   ELECTROMAGNETIC INTERFERENCE MEASUREMENT METHODS - SHIELDED ENCLOSURE.

Descriptive Note : Quarterly rept. no. 2, 1 Sep-30 Nov 66,

Corporate Author : GEORGIA INST OF TECH ATLANTA ENGINEERING EXPERIMENT STATION

Personal Author(s) : Free,William R. ; Bonham,Charlton H. ; Gibson,Robert E. ; Gutzke,John H. ; Jenkins,Bernard M.

Report Date : APR 1967

Pagination or Media Count : 41

Abstract : During the period covered by this report, investigations of techniques and procedures for making radiation measurements in shielded enclosures which can be correlated with open-field measurements have continued. The primary objective of this program is to develop a capability for determining the case radiation and susceptibility characteristics of U. S. Army communication equipments in the controlled environments of shielded enclosures. A microwave hooded antenna capable of making the desired measurements in a shielded enclosure over the frequency range from 1 to 12 GHz has been developed and evaluated. Techniques for calibrating this probe antenna have been investigated during this period and are described in detail. A UHF hooded antenna, for use over the frequency range from 200 to 1500 MHz, has also been developed. The evaluation of this probe antenna has continued during this period and the results obtained to date are presented. Theoretical and experimental investigations of the field distribution within a shielded enclosure at low frequencies are discussed. (Author)

Descriptors :   (*ELECTROMAGNETIC SHIELDING, ANTENNAS), (*RADIOFREQUENCY INTERFERENCE, MEASUREMENT), MICROWAVE FREQUENCY, ULTRAHIGH FREQUENCY, THEORY, CONICAL ANTENNAS, HELICAL ANTENNAS, LOG PERIODIC ANTENNAS, COMMUNICATION EQUIPMENT, ARMY EQUIPMENT, ANTENNA RADIATION PATTERNS

Subject Categories : Electrical and Electronic Equipment
      Radiofrequency Wave Propagation

Distribution Statement : APPROVED FOR PUBLIC RELEASE