MIMO radar concepts based on antenna arrays with fractal boundaries
Dahl, C. and Rolfes, I. and Vogt, M.
2016 13TH EUROPEAN RADAR CONFERENCE, EURAD 2016
Volume: Pages: 41-44
In this contribution, antenna arrays with fractal boundaries have been analyzed for their applicability in multiple-input multiple-output (MIMO) radars. Array geometries based on the Fudgeflake fractal and the Gosper island fractal have been investigated. The presented fractal MIMO concepts can be utilized in order to improve the angular resolution and to reduce the side lobe level for a given number of transmitting and receiving antennas. It is shown that a fractal MIMO concept with 21 transmitting antennas and 21 receiving antennas improves the angular resolution to 4.6 degrees and reduces side lobe level by 3.1 dB compared to a MIMO configuration based on two linear arrays with the same number of antenna elements. In addition, the results have been experimentally confirmed by radar measurements within a reference scenario. © 2016 EuMA.