| Autor: |
Sun-Gyu Lee, Jeong-Hae Lee |
| Jazyk: |
angličtina |
| Rok vydání: |
2023 |
| Předmět: |
|
| Zdroj: |
IEEE Access, Vol 11, Pp 55657-55663 (2023) |
| Druh dokumentu: |
article |
| ISSN: |
2169-3536 |
| DOI: |
10.1109/ACCESS.2023.3280855 |
| Popis: |
This paper proposes a novel method for designing a dual-polarized reconfigurable reflectarray antenna (RRA) based on a symmetrically rotated sub-array operating in a single-band. To improve aperture efficiency and prevent grating lobes, a miniaturized unit cell of a rectangular ring patch with a size of $0.3\lambda _{0}$ is adopted, where the $\lambda _{0}$ is a wavelength in free-space for a center frequency of 10 GHz. By employing the RRA with a symmetrically rotated sub-array, a significant suppression of the cross-polarization level (CPL) and a slight enhancement in peak gain are both achieved. The dual-polarized metasurface with 164 elements is assembled using a feeding structure optimized with F/D = 0.52. The beam steerable RRA is electronically controlled by a control board and has a wide beam steering range of up to ± 60°. The high aperture efficiencies of 26.2% and 27.0%, and relatively low CPLs of −22.6 and −22.8 dB for the $x$ - and $y$ -polarized beams were measured, respectively. Furthermore, the extended functions of the presented RRA, such as dual-polarized dual-beam steering and circular polarized beam steering, are confirmed in full-wave simulation. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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