193716.fig.004a
(a)
193716.fig.004b
(b)
193716.fig.004c
(c)
193716.fig.004d
(d)
Figure 4: Measured normalized radiation patterns in H-plane, E-plane. (a) E-plane at 80 MHz for solid line dashed line , (b) E-plane at 100 MHz for solid line dashed line ,  (c) H-plane at 80 MHz for , and (d) H-plane at 100 MHz for .