A H-Slotted Patch Antenna Array for 79 GHz Automotive Radar Sensors

Due to the exponential booming of wireless traffic demands on vehicular networks, the 79 GHz band has been allocated to automotive radar applications since 2013. In the mining Internet-of-Things (IoT) environment, this millimeter wave band enhances the detection capability of targets and accuracy in extreme conditions. This paper provides a new design of part of radar sensor used in mining industry; the antenna. The proposed design preserves expressly the performance aspects required for IoT communications, such as the gain and the radiation pattern. We present a novel 1x4 H-slotted patch antenna array operating in the 79 GHz band using inset-feeding line. It is characterized by its small size (10.8 mm x 2.083 mm). The simulated results on CST microwave studio software including the return loss, voltage standing wave ratio make this suggested design an attractive candidate to be deployed for medium-range radar and short-range radar in 77-81 GHz.