A new hybrid uniform theory of diffraction-physical
optics (UTD-PO) formulation for the analysis of the multiple
diffraction caused by an array of cylinders, assuming sphericalwave
incidence, is hereby presented. The solution, validated
with numerical data from technical literature, is mathematically
less complex and computationally more efficient −for a large
number of cylinders− than other existing methods, due to the
fact that high-order diffraction terms (slope diffraction) are not
considered, without such lack of terms barely entailing any loss
in accuracy. Results can be applied in radiowave propagation
analysis when multiple diffraction over rounded obstacles has to
be considered.Los autores agradecen al Ministerio de Educación y
Ciencia (TEC2007-66698-C04-04/TCM) y a la Fundación
Séneca de Murcia (03133/PI/05) la financiación de este
trabajo