Normalized Partial Scattering Cross Section for Performance Evaluation of Low-Observability Scattering Structures
The development of diffusion metasurfaces created new opportunities to elevate the stealthiness of combat aircraft. Despite the potential significance of metasurfaces, their rigorous design methodologies are still lacking, especially in the context of meticulous control over the scattering of electr...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-07-01
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| Series: | Electronics |
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| Online Access: | https://www.mdpi.com/2079-9292/10/14/1731 |
| _version_ | 1797527232602701824 |
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| author | Muhammad Abdullah Slawomir Koziel Stanislaw Szczepanski |
| author_facet | Muhammad Abdullah Slawomir Koziel Stanislaw Szczepanski |
| author_sort | Muhammad Abdullah |
| collection | DOAJ |
| description | The development of diffusion metasurfaces created new opportunities to elevate the stealthiness of combat aircraft. Despite the potential significance of metasurfaces, their rigorous design methodologies are still lacking, especially in the context of meticulous control over the scattering of electromagnetic (EM) waves through geometry parameter tuning. Another practical issue is insufficiency of the existing performance metrics, specifically, monostatic and bistatic evaluation of the reflectivity, especially at the design stage of metasurfaces. Both provide limited insight into the RCS reduction properties, with the latter being dependent on the selection of the planes over which the evaluation takes place. This paper introduces a novel performance metric for evaluating scattering characteristics of a metasurface, referred to as Normalized Partial Scattering Cross Section (NPSCS). The metric involves integration of the scattered energy over a specific solid angle, which allows for a comprehensive assessment of the structure performance in a format largely independent of the particular arrangement of the scattering lobes. We demonstrate the utility of the introduced metric using two specific metasurface architectures. In particular, we show that the integral-based metric can be used to discriminate between the various surface configurations (e.g., checkerboard versus random), which cannot be conclusively compared using traditional methods. Consequently, the proposed approach can be a useful tool in benchmarking radar cross section reduction performance of metamaterial-based, and other types of scattering structures. |
| first_indexed | 2024-03-10T09:41:05Z |
| format | Article |
| id | doaj.art-60569a461e7f44e3b1daa36eaf3caa19 |
| institution | Directory Open Access Journal |
| issn | 2079-9292 |
| language | English |
| last_indexed | 2024-03-10T09:41:05Z |
| publishDate | 2021-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Electronics |
| spelling | doaj.art-60569a461e7f44e3b1daa36eaf3caa192023-11-22T03:39:13ZengMDPI AGElectronics2079-92922021-07-011014173110.3390/electronics10141731Normalized Partial Scattering Cross Section for Performance Evaluation of Low-Observability Scattering StructuresMuhammad Abdullah0Slawomir Koziel1Stanislaw Szczepanski2Engineering Optimization and Modeling Center, Reykjavik University, 101 Reykjavik, IcelandEngineering Optimization and Modeling Center, Reykjavik University, 101 Reykjavik, IcelandFaculty of Electronics, Telecommunications and Informatics, Gdańsk University of Technology, 80-233 Gdańsk, PolandThe development of diffusion metasurfaces created new opportunities to elevate the stealthiness of combat aircraft. Despite the potential significance of metasurfaces, their rigorous design methodologies are still lacking, especially in the context of meticulous control over the scattering of electromagnetic (EM) waves through geometry parameter tuning. Another practical issue is insufficiency of the existing performance metrics, specifically, monostatic and bistatic evaluation of the reflectivity, especially at the design stage of metasurfaces. Both provide limited insight into the RCS reduction properties, with the latter being dependent on the selection of the planes over which the evaluation takes place. This paper introduces a novel performance metric for evaluating scattering characteristics of a metasurface, referred to as Normalized Partial Scattering Cross Section (NPSCS). The metric involves integration of the scattered energy over a specific solid angle, which allows for a comprehensive assessment of the structure performance in a format largely independent of the particular arrangement of the scattering lobes. We demonstrate the utility of the introduced metric using two specific metasurface architectures. In particular, we show that the integral-based metric can be used to discriminate between the various surface configurations (e.g., checkerboard versus random), which cannot be conclusively compared using traditional methods. Consequently, the proposed approach can be a useful tool in benchmarking radar cross section reduction performance of metamaterial-based, and other types of scattering structures.https://www.mdpi.com/2079-9292/10/14/1731diffusionmetasurfacesradar cross section (RCS)performance metricsbistatic scattering |
| spellingShingle | Muhammad Abdullah Slawomir Koziel Stanislaw Szczepanski Normalized Partial Scattering Cross Section for Performance Evaluation of Low-Observability Scattering Structures Electronics diffusion metasurfaces radar cross section (RCS) performance metrics bistatic scattering |
| title | Normalized Partial Scattering Cross Section for Performance Evaluation of Low-Observability Scattering Structures |
| title_full | Normalized Partial Scattering Cross Section for Performance Evaluation of Low-Observability Scattering Structures |
| title_fullStr | Normalized Partial Scattering Cross Section for Performance Evaluation of Low-Observability Scattering Structures |
| title_full_unstemmed | Normalized Partial Scattering Cross Section for Performance Evaluation of Low-Observability Scattering Structures |
| title_short | Normalized Partial Scattering Cross Section for Performance Evaluation of Low-Observability Scattering Structures |
| title_sort | normalized partial scattering cross section for performance evaluation of low observability scattering structures |
| topic | diffusion metasurfaces radar cross section (RCS) performance metrics bistatic scattering |
| url | https://www.mdpi.com/2079-9292/10/14/1731 |
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