A review for antenna performance enhancement using metasurface structures | ||
| Journal of Engineering Science and Military Technologies | ||
| Article 1, Volume 5, Issue 1, March 2021 PDF (2.05 M) | ||
| Document Type: Review articles | ||
| DOI: 10.21608/ejmtc.2022.111372.1208 | ||
| Authors | ||
| Mohamed El-Sewedy* 1; Mahmoud A Abdalla2 | ||
| 1Electronic Engineering Department, Military Technical College, Cairo, Egypt. | ||
| 2Military Technical College | ||
| Abstract | ||
| Metasurfaces (MS) have recently attracted a lot of attention due to their ability to manipulate electromagnetic characteristics. The metasurface is constructed from two-dimensional scatterers (metallic and dielectric) which provide simplicity in fabrication and flexibility for integration with other systems. The metallic metasurface unit cells and dielectric metasurface unit cells have a length of sub-wavelength.Most essential ideas of metasurfaces are directly borrowed from antenna array theories such as reflectarray and transmitarray. On the other hand, progress in metasurfaces has aided and accelerated the development of antennas. Metasurface can be used to achieve an increase of the gain of antenna depending on the hyperbolic phase distribution of the metasurface unit cell which constructs the focusing metasurface. Also, the metasurface can be used to achieve RCS reduction, mutual coupling reduction, frequency scanning, multibeam generation, and end-fire antenna. | ||
| Keywords | ||
| Anomalous reflection; anomalous refraction; generalized Snell’s law; high gain; Metasurface; mutual coupling reduction; RCS reduction | ||
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