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

Table 1

Widths and excitations of the slots for the designed array.

Element number	𝑊𝑆 (mm)	Excitation (V/m)	Normalized excitation
1, 8	0.15	3.70	0.746
2, 7	0.20	3.97	0.800
3, 6	0.35	4.72	0.952
4, 5	0.55	4.96	1.000