DocumentCode :
1363853
Title :
Multipath effects in semi-anechoic chambers at low frequencies: a simplified prediction model based on image theory
Author :
Orlandi, A.
Author_Institution :
Dept. of Electr. Eng., L´´Aquila Univ., Italy
Volume :
38
Issue :
3
fYear :
1996
fDate :
8/1/1996 12:00:00 AM
Firstpage :
478
Lastpage :
483
Abstract :
The multipath effects due to radiating sources inside a shielded room can not be neglected when the frequency of the harmonic components of the electromagnetic field are below the frequency threshold of the absorber lined walls. This paper deals with the prediction of the total radiated field by an electric dipole source inside a shielded room, taking into account the wall reflections. The model is based on an extension of the method of images to radiating sources in rectangular cavities. The prediction model is validated by comparing the results with those analytically obtained by the complex potential theory and with those obtained by measurements
Keywords :
anechoic chambers; dipole antennas; electromagnetic fields; electromagnetic interference; electromagnetic shielding; electromagnetic wave absorption; electromagnetic wave reflection; EMI; absorber lined walls; complex potential theory; electric dipole source; electromagnetic field; frequency threshold; harmonic components; image theory; low frequencies; measurements; method of images; multipath effects; prediction model; radiating sources; rectangular cavities; semianechoic chambers; shielded room; total radiated field; wall reflections; Electromagnetic fields; Electromagnetic interference; Electromagnetic measurements; Electromagnetic modeling; Electromagnetic radiation; Electromagnetic reflection; Frequency; Predictive models; Proximity effect; Switched-mode power supply;
fLanguage :
English
Journal_Title :
Electromagnetic Compatibility, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9375
Type :
jour
DOI :
10.1109/15.536078
Filename :
536078
Link To Document :
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