Figure 6: Element factor (EF) of the cosine function used to fit the normalized element pattern (EP). | Scientific Reports

Figure 6: Element factor (EF) of the cosine function used to fit the normalized element pattern (EP).

From: Ultra-wideband, Wide Angle and Polarization-insensitive Specular Reflection Reduction by Metasurface based on Parameter-adjustable Meta-Atoms

Figure 6

Twenty one scattering patterns for the lattice strip from 10–50 GHz with an interval of 2 GHz are simulated and fitted by cosine function. As frequency increases, the beam width of element pattern becomes smaller and element factor becomes larger. The EF values at optimization frequencies are obtained by polynomial curve fitting method.

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