Design of a Substrate-Integrated Fabry-Pérot Cavity Antenna for K-Band Applications

Figure 10

Simulated radiation patterns of the optimized antenna at different frequencies: (a) 21.4 GHz, (b) 21.5 GHz, (c) 21.6 GHz, (d) 21.7 GHz, (e) 21.8 GHz, and (f) 21.9 GHz.

(a)

(b)

(c)

(d)

(e)

(f)