This paper designs and simulates a $2 \\times 2$ microstrip patch array antenna for one-dimensional beam switching applications in the sub-6 GHz 5G frequency band. It incorporates a planar 90° hybrid ...

A new planar array antenna with special beam shaping for ETCS-RSE (Electronic Toll Collection System-Road Side Equipment) is presented. The proposed 10×10 array antenna was obtained flat-topped ...