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Aperture coupling to a coaxial air line: theory and experiment

By: Kanda, M.; Crawford, M.L.; Hill, D.A.; Wu, D.I.;

1993 / IEEE


This item was taken from the IEEE Periodical ' Aperture coupling to a coaxial air line: theory and experiment ' 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 +or-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.<>