Research Article

High-Gain Quad Array of Nonuniform Helical Antennas

Figure 17

Cuts () for the horizontal polarization of the electric field at (a) 0.95 GHz, (b) 1 GHz, (c) 1.05 GHz, and (d) 1.1 GHz.
(a)
(b)
(c)
(d)