Improvement of Low-Frequency Magnetic Shielding Measurement Using Rhombic and Long Rectangular Loop Antennas

For low-frequency magnetic field shielding measurement of large shielded rooms, the standard methods, such as IEEE-Std-299 and MIL-Std-188-125-1, are commonly used. In this letter, three types of loop antennas are analyzed to reduce the SE variation that occurs when using the standard measurement me...

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Bibliographic Details
Published in:IEEE transactions on electromagnetic compatibility 2020-08, Vol.62 (4), p.1364-1368
Main Authors: Park, Hyun Ho, Hyoung, Chang Hee, Kwon, Jong Hwa
Format: Article
Language:English
Subjects:
Antenna measurements
Area measurement
IEEE-Std-299
Loop antennas
Low-frequency magnetic shielding
Magnetic noise
Magnetic shielding
MIL-Std-188-125-1
Military standards
shielded rooms
slot
Slot antennas
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Summary:For low-frequency magnetic field shielding measurement of large shielded rooms, the standard methods, such as IEEE-Std-299 and MIL-Std-188-125-1, are commonly used. In this letter, three types of loop antennas are analyzed to reduce the SE variation that occurs when using the standard measurement method based on the unit test area. Simulation shows that the rhombic and long rectangular loops can reduce the SE difference due to slot position compared to a conventional circular loop. Finally, a shielded room and loop antennas are fabricated and their effects verified through experiments.
ISSN:0018-9375
1558-187X
DOI:10.1109/TEMC.2019.2942523