The shielding effectiveness of a corrugated thick screen is theoretically and experimentally investigated. This screen consists of a half-plane of finite thickness in which corrugations are etched on the smaller side. This structure provides a significant attenuation in the shadow region for both polarizations of the incident field; thus, it can be effectively used for protecting apparatuses from radiating interference as well as for decoupling nearby operating antennas. The shielding properties of the screen are described by a highfrequency formulation that involves closed-form expressions. An experimental setup at X band has been arranged to test the effectiveness of a corrugated screen; the field in the shadow region is compared with that of a screen without corrugations. The experimental results compare very well with those obtained by the high-frequency expressions.
Albani, M., P., P., F., C., Maci, S., R., T. (1998). Shielding effect of a thick screen with corrugations. IEEE TRANSACTIONS ON ELECTROMAGNETIC COMPATIBILITY, 40, 235-239.
Shielding effect of a thick screen with corrugations
ALBANI, MATTEO;MACI, STEFANO;
1998-01-01
Abstract
The shielding effectiveness of a corrugated thick screen is theoretically and experimentally investigated. This screen consists of a half-plane of finite thickness in which corrugations are etched on the smaller side. This structure provides a significant attenuation in the shadow region for both polarizations of the incident field; thus, it can be effectively used for protecting apparatuses from radiating interference as well as for decoupling nearby operating antennas. The shielding properties of the screen are described by a highfrequency formulation that involves closed-form expressions. An experimental setup at X band has been arranged to test the effectiveness of a corrugated screen; the field in the shadow region is compared with that of a screen without corrugations. The experimental results compare very well with those obtained by the high-frequency expressions.File | Dimensione | Formato | |
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Shield Effect thick screen corr EMC Aug 1998.pdf
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https://hdl.handle.net/11365/19643
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