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Fig. 3
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Theoretical amplitude (a) and phase (b) of the time-averaged total electric field of the co-rotating 95 GHz modes TE6,2 (left) and TE10,1 (right) (in the Fresnel zone at 10 mm distance from a 20 mm diameter aperture) [17]. The propagation direction is perpendicular to the measured pattern, coming out of the plane.