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Rapid near-field antenna testing via arrays of modulated scattering probes

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9 Author(s)
Bolomey, J.-C. ; Lab. de Signaux et Syst., Ecole Superieure d''Electr., Gif-sur-Yvette, France ; Cown, B.J. ; Fine, G. ; Jofre, L.
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Key results are summarized of efforts to significantly reduce the near-field measurement time by utilizing one- or two-dimensional arrays of modulated scattering probes in lieu of the single probe ordinarily used in conventional near-field measurement techniques. Results of analytical, numerical, and experimental investigations show that the modulated-scattering technique (MST) using arrays of hundreds or even thousands of modulated scattering probes can be used to map the complex near-field of antennas or scatterers in a few seconds or minutes. The results also strongly indicate that classical (nonmodulated) receiving/transmitting arrays can be adapted for rapid near-field data collection. Major factors affecting the accuracy and speed of probe arrays for near-field measurement are delineated and discussed. Experimental results obtained using laboratory prototype MST systems are also presented and discussed

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Antennas and Propagation, IEEE Transactions on  (Volume:36 ,  Issue: 6 )