Research Article

Performance Comparison of Symmetric and Offset Reflector Antennas Adaptively Illuminated by Novel Triple Mode Feedhorn

Figure 18

Reflector antenna radiation patterns with the feedhorn mode combination of TE11(40%) + TM01(30%) + TE21(30%) with +90° phase for (a) 7.45 GHz, and (b) 7.9 GHz.
870318.fig.0018a
(a)
870318.fig.0018b
(b)