Archimedean Spiral Antenna Calibration Procedures to Increase the Downrange Resolution of a SFCW Radar
This paper deals with the calibration procedures of an Archimedean spiral antenna used for a stepped frequency continuous wave radar (SFCW), which works from 400 MHz to 4845 MHz. Two procedures are investigated, one based on an error-term flow graph for the frequency signal and the second based on a...
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| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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Wiley
2008-01-01
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| Series: | International Journal of Antennas and Propagation |
| Online Access: | http://dx.doi.org/10.1155/2008/378285 |
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| _version_ | 1832549491101663232 |
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| author | Ioan Nicolaescu Piet van Genderen |
| author_facet | Ioan Nicolaescu Piet van Genderen |
| author_sort | Ioan Nicolaescu |
| collection | DOAJ |
| description | This paper deals with the calibration procedures of an Archimedean spiral antenna used for a stepped frequency continuous wave radar (SFCW), which works from 400 MHz to 4845 MHz. Two procedures are investigated, one based on an error-term flow graph for the frequency signal and the second based on a reference metallic plate located at a certain distance from the ground in order to identify the phase dispersion given by the antenna. In the second case, the received signal is passed in time domain by applying an ifft, the multiple reflections are removed and the phase variation due to the time propagation is subtracted. After phase correction, the time domain response as well as the side lobes level is decreased. The antenna system made up of two Archimedean spirals is employed by SFCW radar that operates with a frequency step of 35 MHz. |
| format | Article |
| id | doaj-art-16f9a6e284d640f99131699eeda218f4 |
| institution | Kabale University |
| issn | 1687-5869 1687-5877 |
| language | English |
| publishDate | 2008-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Antennas and Propagation |
| spelling | doaj-art-16f9a6e284d640f99131699eeda218f42025-02-03T06:11:06ZengWileyInternational Journal of Antennas and Propagation1687-58691687-58772008-01-01200810.1155/2008/378285378285Archimedean Spiral Antenna Calibration Procedures to Increase the Downrange Resolution of a SFCW RadarIoan Nicolaescu0Piet van Genderen1Department of Military Electronic Systems and Communications, Military Technical Academy, 81-83 George Cosbuc Avenue, Bucharest 050141, RomaniaInternational Research Centre for Telecommunication-transmission and Radar , University of Technology, Mekelweg, 2628 Delft, The NetherlandsThis paper deals with the calibration procedures of an Archimedean spiral antenna used for a stepped frequency continuous wave radar (SFCW), which works from 400 MHz to 4845 MHz. Two procedures are investigated, one based on an error-term flow graph for the frequency signal and the second based on a reference metallic plate located at a certain distance from the ground in order to identify the phase dispersion given by the antenna. In the second case, the received signal is passed in time domain by applying an ifft, the multiple reflections are removed and the phase variation due to the time propagation is subtracted. After phase correction, the time domain response as well as the side lobes level is decreased. The antenna system made up of two Archimedean spirals is employed by SFCW radar that operates with a frequency step of 35 MHz.http://dx.doi.org/10.1155/2008/378285 |
| spellingShingle | Ioan Nicolaescu Piet van Genderen Archimedean Spiral Antenna Calibration Procedures to Increase the Downrange Resolution of a SFCW Radar International Journal of Antennas and Propagation |
| title | Archimedean Spiral Antenna Calibration Procedures to Increase the Downrange Resolution of a SFCW Radar |
| title_full | Archimedean Spiral Antenna Calibration Procedures to Increase the Downrange Resolution of a SFCW Radar |
| title_fullStr | Archimedean Spiral Antenna Calibration Procedures to Increase the Downrange Resolution of a SFCW Radar |
| title_full_unstemmed | Archimedean Spiral Antenna Calibration Procedures to Increase the Downrange Resolution of a SFCW Radar |
| title_short | Archimedean Spiral Antenna Calibration Procedures to Increase the Downrange Resolution of a SFCW Radar |
| title_sort | archimedean spiral antenna calibration procedures to increase the downrange resolution of a sfcw radar |
| url | http://dx.doi.org/10.1155/2008/378285 |
| work_keys_str_mv | AT ioannicolaescu archimedeanspiralantennacalibrationprocedurestoincreasethedownrangeresolutionofasfcwradar AT pietvangenderen archimedeanspiralantennacalibrationprocedurestoincreasethedownrangeresolutionofasfcwradar |