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The performance of amplitude- and phase-based passive direction finding (DF) systems is evaluated in a multi-path environment. For performance analysis and fair comparison, a parametric circular DF array is modelled and analyzed in a two-wave (direct and reflected) environment. The parameterized model varies the aperture size and number of antenna elements of DF array, frequency, strength and angle-of-incidence...
A 3D spherical passive electromagnetic deflector configuration, based on the concept of spatial-feeding, is proposed that modifies the incident electromagnetic energy from the steerable planar antenna array (source) to meet different scenarios and operational requirements. A generalized analytical formulation of the parametric spherical deflector configuration is carried out. The simulation results...
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