Single-Layer, Dual-Port, Dual-Band, and Orthogonal-Circularly Polarized Microstrip Antenna Array with Low Frequency Ratio

Figure 6

Gain patterns at two center frequencies: (a) gain patterns in two principle planes at 8.2 GHz; (b) gain patterns in two principle planes at 8.6 GHz; (c) gain patterns in the = 45° plane at 8.2 GHz; (d) gain patterns in the = 45° plane at 8.6 GHz.

(a)

(b)

(c)

(d)