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Spherical near-field facility for microwave coupling assessments in the 100 MHz-6 GHz frequency range

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7 Author(s)
Serafin, D. ; DGA, Centre d''Etudes de Gramat, France ; Lasserre, J.-L. ; Bolomey, J.-C. ; Cottard, G.
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This paper describes a spherical near-field facility set up at the Centre d'Etudes de Gramat (CEG) to perform low-power microwave coupling assessments. Specifically, this facility has been designed to determine the coupling cross section of a complex object. However, it can also be used for the characterization of any radiating system in electromagnetic compatibility (EMC) or high-power microwave (HPM) environments. The near-field approach is shown to be complementary and to offer increased flexibility when compared to other more conventional measurement techniques. More particularly, the use of a probe array in the upper part of the frequency band significantly speeds up the near-field measurement process. Consequently, broadband and multiparameter acquisitions can be performed within acceptable duration. The examples given in this paper provide a broad illustration of the capabilities of near-field techniques for EMC and HPM applications

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Electromagnetic Compatibility, IEEE Transactions on  (Volume:40 ,  Issue: 3 )