Abstract

Abstract This paper designs and analyzes radar antenna for automobiles that can operate at 24 GHz and 77 GHz. This radar antenna is designed on LTCC substrate for highly integrated module. The LTCC substrate has a reflector at an arbitrary position to improve the antenna patterns. The pattern of the reflector antenna has dual beam characteristics that the central portion of the pattern is reduced. Therefore, this paper adds an air layer to the LTCC substrate to improve this disadvantage. As a result, the pattern has been improved to have a single beam characteristic. This paper designs and analyzes a single beam offset parabolic reflector(OPR) antenna for a highly integrated module that can operate in the millimeter wave. This paper also suggests the possibility of integration of monopole antennas for short and long distance radar systems.

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