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On a novel expression of the field scattered by an arbitrary constant impedance plane. (English) Zbl 1239.78005
Summary: The electromagnetic field scattered by an impedance plane is generally given by its plane wave expansion (Fourier representation). Here we derive an alternative expression which is more suitable for point source illumination. For this, we consider an original expression of the Hertz potentials for the incident field and express the scattered potentials in a novel form. A special function then involved can be expressed in an integral which is in turn expanded in a convergent series. The expression presented also permits us to express complete asymptotics. Our development considers an arbitrary impedance, passive or active.
MSC:
78A46 Inverse problems (including inverse scattering) in optics and electromagnetic theory
78M35 Asymptotic analysis in optics and electromagnetic theory
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