GMRT 327 Hz Feed Patterns Both E and H plane
profiles are plotted at 290, 330, and 360 Hz with infinite ground plane.
The 290 Hz pattern has a single peak. 330 Hz has a double peak and 360 Hz
has a rather strong double peak. These frequencies correspond to the
limits of VSWR < 2 with single point matching.
GMRT 327MHz Feed Pattern Both E and H plane profiles
are plotted. The two profiles with higher backlobes have a finite ground
plane. The others have infinite ground plane.