Integrated stacked patch antenna array on LTCC material operating at 24 GHz [automotive radar applications]

This paper presents the concept, design and measurement results of a broadband stacked patch antenna array integrated within an FM-CW radar module, realised in LTCC (low temperature cofired ceramics) technology, for automotive applications operating at 24 GHz. After a general introduction on the benefits of integrated LTCC antennas, the paper describes the antenna requirements and the consequential design concept. Subsequently, simulation and measurement results are presented to verify the feasibility of the concept.