Optimization of the UWB Feed Antenna Position in Reflector Applications
In reflector system design, achieving high stability of phase center position with changes in frequency in reflector feed antennas is highly desired. However, obtaining highly stable phase center is not possible for UWB feed antennas, specially for planar ones. Thus, an optimum positioning for the U...
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| Format: | Article |
| Language: | English |
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Wiley
2014-01-01
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| Series: | International Journal of Antennas and Propagation |
| Online Access: | http://dx.doi.org/10.1155/2014/961818 |
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| _version_ | 1832554510799601664 |
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| author | Nurhan Türker Tokan |
| author_facet | Nurhan Türker Tokan |
| author_sort | Nurhan Türker Tokan |
| collection | DOAJ |
| description | In reflector system design, achieving high stability of phase center position with changes in frequency in reflector feed antennas is highly desired. However, obtaining highly stable phase center is not possible for UWB feed antennas, specially for planar ones. Thus, an optimum positioning for the UWB feed antenna should be defined. Optimization of the positioning of the feed antenna is essential since this process lowers resulting phase error losses significantly. In this work, a novel method for optimizing the UWB feed position of a prime focus reflector antenna from phase and amplitude recordings of the measured radiated field is introduced. An automatic and fast design procedure, based on Genetic Algorithms, is described. The proposed methodology has been numerically and experimentally assessed. The procedure is introduced by an application example to one of the most commonly used UWB feed antennas in high-performance reflector antenna systems: Linear Tapered Slot Antenna (LTSA). A LTSA antenna operating in 6–25 GHz frequency band is designed and manufactured. The performance of the method is quantified in terms of its phase error losses in E- and H-planes for reflector illumination. |
| format | Article |
| id | doaj-art-9b110a52a7724de4a4f4799beb887fc6 |
| institution | Kabale University |
| issn | 1687-5869 1687-5877 |
| language | English |
| publishDate | 2014-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Antennas and Propagation |
| spelling | doaj-art-9b110a52a7724de4a4f4799beb887fc62025-02-03T05:51:25ZengWileyInternational Journal of Antennas and Propagation1687-58691687-58772014-01-01201410.1155/2014/961818961818Optimization of the UWB Feed Antenna Position in Reflector ApplicationsNurhan Türker Tokan0Department of Electronics and Communications Engineering, Yildiz Technical University, Esenler, 34220 Istanbul, TurkeyIn reflector system design, achieving high stability of phase center position with changes in frequency in reflector feed antennas is highly desired. However, obtaining highly stable phase center is not possible for UWB feed antennas, specially for planar ones. Thus, an optimum positioning for the UWB feed antenna should be defined. Optimization of the positioning of the feed antenna is essential since this process lowers resulting phase error losses significantly. In this work, a novel method for optimizing the UWB feed position of a prime focus reflector antenna from phase and amplitude recordings of the measured radiated field is introduced. An automatic and fast design procedure, based on Genetic Algorithms, is described. The proposed methodology has been numerically and experimentally assessed. The procedure is introduced by an application example to one of the most commonly used UWB feed antennas in high-performance reflector antenna systems: Linear Tapered Slot Antenna (LTSA). A LTSA antenna operating in 6–25 GHz frequency band is designed and manufactured. The performance of the method is quantified in terms of its phase error losses in E- and H-planes for reflector illumination.http://dx.doi.org/10.1155/2014/961818 |
| spellingShingle | Nurhan Türker Tokan Optimization of the UWB Feed Antenna Position in Reflector Applications International Journal of Antennas and Propagation |
| title | Optimization of the UWB Feed Antenna Position in Reflector Applications |
| title_full | Optimization of the UWB Feed Antenna Position in Reflector Applications |
| title_fullStr | Optimization of the UWB Feed Antenna Position in Reflector Applications |
| title_full_unstemmed | Optimization of the UWB Feed Antenna Position in Reflector Applications |
| title_short | Optimization of the UWB Feed Antenna Position in Reflector Applications |
| title_sort | optimization of the uwb feed antenna position in reflector applications |
| url | http://dx.doi.org/10.1155/2014/961818 |
| work_keys_str_mv | AT nurhanturkertokan optimizationoftheuwbfeedantennapositioninreflectorapplications |