Figure 8

Radiation patterns corresponding to the phase-shift distributions shown in Fig. 7. (a) Pencil beam pointing at (\(\theta _0, \varphi _0)=(23^{\circ }, 0^{\circ }\)). (b) Isoflux pattern obtained using an ideal \(\cos ^q\theta\) model for the feed horn. (c) Isoflux pattern obtained using the spherical wave expansion model for the feed horn.