Phase Reversal Technique Applied to Fishnet Metalenses
Joint Authors
Pacheco-Peña, Victor
Minin, Igor V.
Minin, Oleg V.
Beruete, Miguel
Source
International Journal of Antennas and Propagation
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-08-26
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
In this work, the fishnet metamaterial is applied to several converging metalenses by combining the zoning, reference phase, and phase reversal techniques.
First, the zoning and reference phase techniques are implemented in several metalenses at 55 GHz (λ0=5.45 mm) with a short focal length of 1.5 λ0.
Then, the phase reversal technique is applied to these metalenses by switching from a concave to a convex profile in order to change the phase distribution inside of them.
The designs are evaluated both numerically and experimentally demonstrating that chromatic dispersion (the shift of the position of the focus at different frequencies) is reduced when using the phase-reversed profiles.
It is shown how the position of the focus remains at the same location within a relatively broadband frequency range of ~4% around the design frequency without affecting the overall behaviour of the metalenses.
The best performance is achieved with the design that combines both reference phase and phase reversal techniques, with an experimental position of the focus of 1.75 λ0, reduced side lobes, and a power enhancement of 6.5 dB.
The metalenses designed here may find applications in situations where a wideband response and low side lobes are required because of the reduced chromatic aberrations of the focus.
American Psychological Association (APA)
Pacheco-Peña, Victor& Minin, Igor V.& Minin, Oleg V.& Beruete, Miguel. 2018. Phase Reversal Technique Applied to Fishnet Metalenses. International Journal of Antennas and Propagation،Vol. 2018, no. 2018, pp.1-8.
https://search.emarefa.net/detail/BIM-1169314
Modern Language Association (MLA)
Pacheco-Peña, Victor…[et al.]. Phase Reversal Technique Applied to Fishnet Metalenses. International Journal of Antennas and Propagation No. 2018 (2018), pp.1-8.
https://search.emarefa.net/detail/BIM-1169314
American Medical Association (AMA)
Pacheco-Peña, Victor& Minin, Igor V.& Minin, Oleg V.& Beruete, Miguel. Phase Reversal Technique Applied to Fishnet Metalenses. International Journal of Antennas and Propagation. 2018. Vol. 2018, no. 2018, pp.1-8.
https://search.emarefa.net/detail/BIM-1169314
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1169314