A wideband dielectric waveguide-based 160-GHz radar target generator
FacultiesFakultät für Ingenieurwissenschaften, Informatik und Psychologie
InstitutionsInstitut für Mikrowellentechnik
External cooperationsEndress+Hauser GmbH+Co. KG
Sensors ; 19 (2019), 12. - Art.-Nr. 2801. - ISSN 1424-8220
Link to original publicationhttps://dx.doi.org/10.3390/s19122801
LicenseCC BY 4.0 International
The increasing number of radar sensors in commercial and industrial products leads to a growing demand for system functionality tests. Conventional test procedures require expensive anechoic chambers to provide a deﬁned test environment for radar sensors. In this paper, a compact and low cost dielectric waveguide radar target generator for level probing radars is presented. The radar target generator principle is based on a long dielectric waveguide as a one-target scenery. By manipulating the ﬁeld distribution of the waveguide, a speciﬁc reﬂection of a radar target is generated. Two realistic scenarios for a tank level probing radar are investigated and suitable targets are designed with full wave simulations. Target distances from 13 cm to at least 9 m are realized with an extruded dielectric waveguide with dielectric losses of 2 dB/m at 160 GHz. Low loss (0.5 dB) and low reﬂection holders are used to ﬁx the waveguide. Due to the dispersion of the dielectric waveguide, a detailed analysis of its impact on frequency-modulated continuous wave (FMCW) radars is given and compared to free-space propagation. The functionality of the radar target generator is veriﬁed with a 160-GHz FMCW radar prototype.
ZAFH Mikrosens / MWK BW
Subject HeadingsDielektrischer Wellenleiter [GND]
Moduliertes Dauerstrichradar [GND]
Dielectric wave guides [LCSH]
Millimeter waves [LCSH]
Millimeter waves; Radar [LCSH]
Phase modulation [LCSH]
KeywordsTarget generator; Millimeter wave radar; Frequency-modulated continuous wave (FMCW) radar
Dewey Decimal GroupDDC 620 / Engineering & allied operations
MetadataShow full item record
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