RFI shielding effectiveness of a soil berm

ABSTRACT We investigate the electromagnetic (EM) shielding effectiveness (SE) properties of a berm which was created from soil due to construction works near a sensitive radio astronomy site. For the analysis, the berm is approximated as being located above an infinite perfectly electric conducting...

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Bibliographic Details
Published in:Microwave and optical technology letters 2017-01, Vol.59 (1), p.17-21
Main Authors: Tezel, Necmi Serkan, Reader, Howard C., Davidson, David B.
Format: Article
Language:English
Subjects:
Approximation
Boundary element method
Computational efficiency
Cross sections
diffraction
electromagnetic compatibility
integral equations
MeerKAT
Microwaves
Radio astronomy
Shielding
shielding effectiveness
Soil investigations
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Summary:ABSTRACT We investigate the electromagnetic (EM) shielding effectiveness (SE) properties of a berm which was created from soil due to construction works near a sensitive radio astronomy site. For the analysis, the berm is approximated as being located above an infinite perfectly electric conducting (PEC) plane. A two‐dimensional cross‐sectional analysis is shown to be sufficient to investigate the SE, which we compute using a computationally efficient single‐layer boundary integral equation method. To verify the method, we compare our results against those obtained by the commercially available Method of Moments (MoM) code, FEKO. Good agreement is demonstrated. It is observed that the berm provides about 25–30 dB SE at heights lower than 5 m and at distances of up to 50 m from the berm. © 2016 Wiley Periodicals, Inc. Microwave Opt Technol Lett 59:17–21, 2017
ISSN:0895-2477
1098-2760
DOI:10.1002/mop.30211