On the use of Equivalent Currents for Antenna Interaction with Scaterrers Characterization
Yuri Álvarez, Jaime Laviada, Cebrián García, Fernando Las-Heras
Área de Teoría de la Señal y Comunicaciones, Universidad de Oviedo, Spain
Antenna pattern measurement in the presence of obstacles requires an accurate characterization of the antenna-scatterer interaction in order to retrieve the multipath effects that distort the antenna pattern. In this contribution, a new approach based on the Sources Reconstruction Method is proposed. The idea is to characterize the Antenna-Under-Test (AUT) and the scatterers through a set of equivalent currents that radiate the same fields as the original problem. Thus, it is expected that the equivalent currents retrieved on the surface enclosing just the AUT will provide the AUT radiation pattern. A comparison with modal expansion of the fields on the reconstruction domains is also performed.
Proc. AMTA
2011
October
197-202
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