Ultra-wide band and high efficient Polarization converting metasurface employing Bell-shaped unit cell for RCS reduction
| Autor: | Sukumar Vidhya, Madurakavi Karthikeyan |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2024 |
| Předmět: | |
| Zdroj: | Results in Engineering, Vol 24, Iss , Pp 103342- (2024) |
| Druh dokumentu: | article |
| ISSN: | 2590-1230 80057853 |
| DOI: | 10.1016/j.rineng.2024.103342 |
| Popis: | Polarization is a dominant parameter regarding communication systems in recent times. The standard polarization techniques can be used only to a certain extent because of their huge size and limited bandwidth constraints. A design of bell-shaped polarization converting metasurface (PCMS) is presented in this paper which is highly efficient for Radar cross section (RCS reduction) and also operates in ultra-wideband. The designed PCMS attains a polarization conversion ratio of >90 % by demonstrating the transformation of the linear polarization wave to its orthogonal counterpart. The PCMS is arranged in a triangular chessboard configuration to reduce the RCS. RCS reduction is obtained by achieving destructive interference, accomplished by two unit cells. The two unit cells, PCMS and its mirror will have a phase difference of 180 ± 37° The phase cancellation is obtained by rotating and arranging the proposed PCMS at 90°, 180° and 270° RCS reduction is obtained in a frequency range from 4 GHz to 24.8 GHz with 144 % FBW. This PCMS is verified experimentally. A good agreement is found between the simulation and the experimental results. |
| Databáze: | Directory of Open Access Journals |
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