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An ultra-wideband 2-bit coding metasurface using Pancharatnamâ€"Berry phase for radar cross-section reduction.
- Source :
-
Chinese Physics B . Mar2022, Vol. 31 Issue 3, p1-7. 7p. - Publication Year :
- 2022
-
Abstract
- An ultra-wideband 2-bit coding metasurface is designed for radar cross-section (RCS) reduction. The design process is presented in detail, in which a polarization conversion metasurface (PCM) is first proposed. The proposed PCM can realize ultra-wideband circular polarization (CP) maintaining reflection. Moreover, Pancharatnam-Berry (PB) phase will be generated in the co-polarized reflection coefficient by rotating the metallic patches in its unit cells. Thus, based on the PCM, the four coding elements of a 2-bit coding metasurface are constructed using PB phase, and an ultra-wideband PB 2-bit coding metasurface is proposed according to an appropriate coding sequence. The simulated and experimental results show that the coding metasurface has obvious advantages of wideband and polarization-insensitivity. Compared to a metallic plate of the same size, it can achieve more than 10 dB RCS reduction in the frequency band from 9.8 GHz to 42.6 GHz with a relative bandwidth of 125.2% under normal incidence with arbitrary polarizations. [ABSTRACT FROM AUTHOR]
- Subjects :
- *GEOMETRIC quantum phases
*RADAR
*CIRCULAR polarization
*REFLECTANCE
*UNIT cell
Subjects
Details
- Language :
- English
- ISSN :
- 16741056
- Volume :
- 31
- Issue :
- 3
- Database :
- Academic Search Index
- Journal :
- Chinese Physics B
- Publication Type :
- Academic Journal
- Accession number :
- 155386712
- Full Text :
- https://doi.org/10.1088/1674-1056/ac11ec