Shielding effectiveness prediction in MIL-STD 285 loop source configuration

Author

Celozzi, Salvatore

Author_Institution

Electr. Eng. Dept., Univ. of Rome La Sapienza, Italy

Volume

2

fYear

1998

fDate

24-28 Aug 1998

Firstpage

1125

Abstract

An analytical formulation is presented for the evaluation of performance of a planar shield in the low-frequency, low-impedance antenna configuration described by MIL-STD 285 and IEEE Std. 299. The magnetic field computed in various shield configurations by means of the proposed closed-form expressions is presented. The proposed procedure allows the evaluation of the shielding effectiveness exactly. The effects of the finite size of both the transmitting and receiving antenna are taken into account accurately and highlighted. Finally, the exact solution is compared with that deriving from the use of the so-called transmission line (TL) approximation, in various conditions

Keywords

IEEE standards; magnetic fields; magnetic shielding; receiving antennas; transmitting antennas; IEEE Std. 299; MIL-STD 285 loop source configuration; closed-form expressions; low-frequency; low-impedance antenna configuration; magnetic field computation; planar shield; receiving antenna; shield configurations; shielding effectiveness prediction; transmission line approximation; transmitting antenna; Antenna measurements; Frequency; Magnetic analysis; Magnetic field measurement; Magnetic flux; Magnetic shielding; Measurement standards; Receiving antennas; Transmission line theory; Transmitting antennas;

fLanguage

English

Publisher

ieee

Conference_Titel

Electromagnetic Compatibility, 1998. 1998 IEEE International Symposium on

Conference_Location

Denver, CO

Print_ISBN

0-7803-5015-4

Type

conf

DOI

10.1109/ISEMC.1998.750367

Filename

750367