Aperture coupling to a coaxial air line: theory and experiment

Author

Hill, David A. ; Crawford, Myron L. ; Kanda, Motohisa ; Wu, Doris I.

Author_Institution

Nat. Inst. of Stand. & Technol., Boulder, CO, USA

Volume

35

Issue

1

fYear

1993

fDate

2/1/1993 12:00:00 AM

Firstpage

69

Lastpage

74

Abstract

Coupling through a circular aperture in the shield of a coaxial air line is studied theoretically and experimentally. Polarizability theory is used to compute the effective dipole moments that excite the coaxial line in the internal region. Measurements of shielding effectiveness were made in a reverberation chamber over wide frequency ranges. Agreement between theory and measurements is generally within ±10 dB. Recommendations for improvements in the measurements and theory are made for achieving the closer agreement that would be desirable for an artifact standard for shielding effectiveness measurements

Keywords

coaxial cables; electric variables measurement; reverberation chambers; shielding; transmission line theory; aperture coupling; artifact standard; circular aperture; coaxial air line; dipole moments; internal region; reverberation chamber; shielding effectiveness measurements; Antenna measurements; Apertures; Cable shielding; Coaxial components; Engine cylinders; Frequency; Impedance measurement; Polarization; Reverberation chamber; Surface impedance;

fLanguage

English

Journal_Title

Electromagnetic Compatibility, IEEE Transactions on

Publisher

ieee

ISSN

0018-9375

Type

jour

DOI

10.1109/15.249397

Filename

249397