Empirical study on the antenna-dependent accuracy of continuous-wave radars

Publikationstyp
Conference Paper
Date Issued
2024
Sprache
English
Author(s)
Tegowski, Bartosz  
Hochfrequenztechnik E-3  
Schulz, Björn
Kölpin, Alexander  orcid-logo
Hochfrequenztechnik E-3  
TORE-URI
https://hdl.handle.net/11420/47308
Start Page
105
End Page
108
Citation
German Microwave Conference, GeMiC 2024
Contribution to Conference
German Microwave Conference, GeMiC 2024  
Publisher DOI
10.23919/GeMiC59120.2024.10485343
Scopus ID
2-s2.0-85190714913
Publisher
IEEE
ISBN
978-3-9820397-3-2
The impact of antennas on the accuracy of continuous-wave radar systems is examined in this contribution. Due to its own radar cross section (RCS), the radar antenna redirects a fraction of the incident field, originally scattered by the target, towards the latter. This generates virtual targets, which impair the accuracy of relative distance measurements. The associated errors are empirically studied for a selection of horn antennas and patch antenna arrays by measurements with a vector network analyzer in the 24-GHz ISM band. The errors vary with the antenna type and can be up to several hundreds of micrometers. It is shown that a specific reduction of the antenna RCS improves the accuracy.
Subjects
Accuracy
continuous-wave (CW) radar
horn antenna
interferometric radar
patch antenna array
radar cross section (RCS)
DDC Class
621: Applied Physics