Details
| Original language | English |
|---|---|
| Article number | 7482842 |
| Pages (from-to) | 1274-1281 |
| Number of pages | 8 |
| Journal | IEEE Transactions on Electromagnetic Compatibility |
| Volume | 58 |
| Issue number | 4 |
| Publication status | Published - 1 Jun 2016 |
Abstract
Measurement procedures for determining the radiated disturbances from electronic equipment are described in several IEC/CISPR standards and are well probed for frequencies up to 1 GHz. Above that frequency, radiation pattern of EUTs evolve complex forms so that the direction and magnitude of the maximum directivity is not known by design. Hence, standardized sampling approaches might underestimate the 'true' maximum of the radiated emission. In this paper, an extension of these measurement procedures is proposed. The method uses a stochastic approach for estimating the maximum directivity based on the electrical size of the EUT. This is combined with a total radiated power measurement for a reduced sampling procedure to predict the maximum free-space, far-zone electric field. For validation purposes, an extensive 3-D scan of the radiation pattern of a generic EUT is performed. Different subsampling approaches are then investigated while the new prediction method is applied. It can be shown that the accuracy of the measurement procedures can be increased due to the proposed method.
Keywords
- Emission measurement, maximum directivity, prediction, sampling approach, unintentional electromagnetic radiator
ASJC Scopus subject areas
- Physics and Astronomy(all)
- Atomic and Molecular Physics, and Optics
- Physics and Astronomy(all)
- Condensed Matter Physics
- Engineering(all)
- Electrical and Electronic Engineering
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In: IEEE Transactions on Electromagnetic Compatibility, Vol. 58, No. 4, 7482842, 01.06.2016, p. 1274-1281.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Measurement Validation for the Extension of Emission Measurements in Alternative Test Sites Above 1 GHz
AU - Menssen, Benjamin
AU - Brech, Henrik
AU - Garbe, Heyno
PY - 2016/6/1
Y1 - 2016/6/1
N2 - Measurement procedures for determining the radiated disturbances from electronic equipment are described in several IEC/CISPR standards and are well probed for frequencies up to 1 GHz. Above that frequency, radiation pattern of EUTs evolve complex forms so that the direction and magnitude of the maximum directivity is not known by design. Hence, standardized sampling approaches might underestimate the 'true' maximum of the radiated emission. In this paper, an extension of these measurement procedures is proposed. The method uses a stochastic approach for estimating the maximum directivity based on the electrical size of the EUT. This is combined with a total radiated power measurement for a reduced sampling procedure to predict the maximum free-space, far-zone electric field. For validation purposes, an extensive 3-D scan of the radiation pattern of a generic EUT is performed. Different subsampling approaches are then investigated while the new prediction method is applied. It can be shown that the accuracy of the measurement procedures can be increased due to the proposed method.
AB - Measurement procedures for determining the radiated disturbances from electronic equipment are described in several IEC/CISPR standards and are well probed for frequencies up to 1 GHz. Above that frequency, radiation pattern of EUTs evolve complex forms so that the direction and magnitude of the maximum directivity is not known by design. Hence, standardized sampling approaches might underestimate the 'true' maximum of the radiated emission. In this paper, an extension of these measurement procedures is proposed. The method uses a stochastic approach for estimating the maximum directivity based on the electrical size of the EUT. This is combined with a total radiated power measurement for a reduced sampling procedure to predict the maximum free-space, far-zone electric field. For validation purposes, an extensive 3-D scan of the radiation pattern of a generic EUT is performed. Different subsampling approaches are then investigated while the new prediction method is applied. It can be shown that the accuracy of the measurement procedures can be increased due to the proposed method.
KW - Emission measurement
KW - maximum directivity
KW - prediction
KW - sampling approach
KW - unintentional electromagnetic radiator
UR - http://www.scopus.com/inward/record.url?scp=84971568099&partnerID=8YFLogxK
U2 - 10.1109/TEMC.2016.2554463
DO - 10.1109/TEMC.2016.2554463
M3 - Article
AN - SCOPUS:84971568099
VL - 58
SP - 1274
EP - 1281
JO - IEEE Transactions on Electromagnetic Compatibility
JF - IEEE Transactions on Electromagnetic Compatibility
SN - 0018-9375
IS - 4
M1 - 7482842
ER -