Figure 5
From: Wide-angle scanning planar array with quasi-hemispherical-pattern elements
Relations between structure parameter d and antenna performances. (a) Impedance matching versus d. The insert figure shows reflection coefficients corresponding to different d. Normalized radiation patterns in xz plane, yz plane, and xy plane at 5.8 GHz versus d are shown in (b–d), respectively. Impedance changes a lot and radiation patterns change little with structure parameter d.
