Design of a 1-D Microstrip Patch Antenna Array

In this paper, a 1-D microstrip patch antenna array is proposed for automotive collision avoidance radar. The proposed antenna array with dimensions of 140.2mm×22.6mm ×0.5mm achieves satisfactory impedance matching and radiation across the frequency band from 23 to 27GHz with S11 below -10dB. A prototype of the simulated antenna is fabricated and experimentally studied as well. The measured results show reasonable agreement with the simulated ones.