A Wideband Dielectric Waveguide-Based 160-GHz Radar Target Generator
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 diele...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2019-06-01
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| Series: | Sensors |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1424-8220/19/12/2801 |
| _version_ | 1817996265769664512 |
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| author | Martin Geiger Christian Wegner Winfried Mayer Christian Waldschmidt |
| author_facet | Martin Geiger Christian Wegner Winfried Mayer Christian Waldschmidt |
| author_sort | Martin Geiger |
| collection | DOAJ |
| description | 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. |
| first_indexed | 2024-04-14T02:19:38Z |
| format | Article |
| id | doaj.art-3ea8021a699e4d169a7aef7799f0a7aa |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-04-14T02:19:38Z |
| publishDate | 2019-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-3ea8021a699e4d169a7aef7799f0a7aa2022-12-22T02:18:04ZengMDPI AGSensors1424-82202019-06-011912280110.3390/s19122801s19122801A Wideband Dielectric Waveguide-Based 160-GHz Radar Target GeneratorMartin Geiger0Christian Wegner1Winfried Mayer2Christian Waldschmidt3Institute of Microwave Engineering, Ulm University, 89081 Ulm, GermanyInstitute of Microwave Engineering, Ulm University, 89081 Ulm, GermanyEndress + Hauser GmbH + Co. KG, 79689 Maulburg, GermanyInstitute of Microwave Engineering, Ulm University, 89081 Ulm, GermanyThe 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.https://www.mdpi.com/1424-8220/19/12/2801target generatordielectric waveguidemillimeter wave radardispersionfrequency-modulated continuous wave (FMCW) radar |
| spellingShingle | Martin Geiger Christian Wegner Winfried Mayer Christian Waldschmidt A Wideband Dielectric Waveguide-Based 160-GHz Radar Target Generator Sensors target generator dielectric waveguide millimeter wave radar dispersion frequency-modulated continuous wave (FMCW) radar |
| title | A Wideband Dielectric Waveguide-Based 160-GHz Radar Target Generator |
| title_full | A Wideband Dielectric Waveguide-Based 160-GHz Radar Target Generator |
| title_fullStr | A Wideband Dielectric Waveguide-Based 160-GHz Radar Target Generator |
| title_full_unstemmed | A Wideband Dielectric Waveguide-Based 160-GHz Radar Target Generator |
| title_short | A Wideband Dielectric Waveguide-Based 160-GHz Radar Target Generator |
| title_sort | wideband dielectric waveguide based 160 ghz radar target generator |
| topic | target generator dielectric waveguide millimeter wave radar dispersion frequency-modulated continuous wave (FMCW) radar |
| url | https://www.mdpi.com/1424-8220/19/12/2801 |
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