Gardill, MarkusMarkusGardillFischer, GeorgGeorgFischerWeigel, RobertRobertWeigelKölpin, AlexanderAlexanderKölpin2020-08-072020-08-072013-09-03Advances in Radio Science (11): 297-305 (2013-09-03)http://hdl.handle.net/11420/6993We generally categorize the approaches for ultrawideband antenna array design, and consequently propose simplified concepts for antenna arrays for a high-precision, ultra-wideband FMCW radar 2-D local positioning system to obtain robustness against multi path interference, perform angle of arrival analysis, as well as instantaneous heading estimation. We focus on low-cost and mechanical robust, industrial-application ready antennas. The antenna arrays are optimized for operation in the 5 GHz to 8 GHz frequency range and are designed towards supporting full omnidirectional 360° as well as partial half-plane direction of arrival estimation. Two different concepts for vehicle- as well as wall-mounted antenna array systems are proposed and discussed. We propose a wideband unidirectional bow-tie antenna array element having 97%impedance and 37%pattern bandwidth and a robust vehicle mounted omnidirectional antenna element having more than 85% impedance and pattern bandwidth.en1684-99732013297305Copernicus Publicationshttps://creativecommons.org/licenses/by/3.0/TechnikJournal Article10.15480/882.296910.5194/ars-11-297-201310.15480/882.2969Other