Design of 77 GHz Patch Array Antenna with Horn for Industrial Radar Applications

This paper presents a 77 GHz patch array antenna with horn for industrial radar applications. This kind of microstrip patch antenna achieves high gain, wide width and small beam angle in a small size. The results show that the antenna frequency band covers the frequency range of 76-81 GHz. It uses a non-contact measurement method, which is suitable for radar. It can use for liquid level of industrial storage tanks to measure in multiple tank environments.