Fractal antenna arrays for MIMO radar applications
- In this contribution, fractal antenna arrays are analyzed for their applicability in multiple-input multiple-output (MIMO) radars. Array geometries based on the Fudgeflake fractal and the Gosper island fractal are investigated. In addition, a concept for the combination of both fractals is shown in order to increase the flexibility concerning the number of transmitting and receiving antennas. The presented fractal MIMO concepts can be utilized in order to improve the angular resolution and to reduce the sidelobe 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 are experimentally validated by broadband radar measurements.
| Author: | Christoph DahlORCiDGND, Michael VogtGND, Ilona RolfesGND |
|---|---|
| URN: | urn:nbn:de:hbz:294-65780 |
| DOI: | https://doi.org/10.1017/S1759078717001015 |
| Parent Title (English): | International journal of microwave and wireless technologies |
| Publisher: | Cambridge University Press |
| Document Type: | Article |
| Language: | English |
| Date of Publication (online): | 2019/09/06 |
| Date of first Publication: | 2017/10/26 |
| Publishing Institution: | Ruhr-Universität Bochum, Universitätsbibliothek |
| Tag: | Radar application; Radar architecture and systems |
| Volume: | 9 |
| Issue: | 10 |
| First Page: | 2019 |
| Last Page: | 2028 |
| Note: | © Copyright Cambridge University Press. Permission for reuse must be granted by Cambridge University Press in the first instance. |
| Institutes/Facilities: | Institute of Microwave Systems |
| open_access (DINI-Set): | open_access |
| faculties: | Fakultät für Elektrotechnik und Informationstechnik |
| Licence (German): |  Nationale Lizenz |
