Wideband Extrapolation of Spatial Responses of Resonant Structures Using Early-Time and Low-Frequency Data

Figure 10

Poles of the patch antenna determined by fitting the response at 𝐾=10 spatial locations using three different sets of 𝐾 position vectors denoted by 𝒦₁, 𝒦₂, and 𝒦₃. Physical poles are coincident in the three sets of poles, whereas the fitting pole is not.