A Truncated Waveguide Fed by a Microstrip as a Radiating Element for High-Performance Automotive Anticollision Radars

Figure 4

Radiated power (percentage of incident power) for the antenna in Figure 2. Radiating element parameters: 𝐿=10.36mm, 𝑊_𝑆=0.3mm, and ℎ_𝑑=1.2mm.

(a)

(b)

(c)