Dual-band antenna with large beam steering angle incorporating endfire and frequency scanning modes using double-layer SSPPs structure

HR Zu, B Wu, YT Zhao, T Su… - IEEE Transactions on …, 2021 - ieeexplore.ieee.org
A dual wideband antenna with a large beam steering angle through endfire radiation and
frequency scanning radiation in each band is proposed for the first time. The antenna utilizes …

Periodic structures with higher symmetries: Their applications in electromagnetic devices

O Quevedo-Teruel, G Valerio, Z Sipus… - IEEE Microwave …, 2020 - ieeexplore.ieee.org
Higher symmetries frequently amaze human beings because of the illusions and incredible
landscapes such symmetries can produce. For example, imagine the unearthly pictures of …

Three-dimensional broadband and isotropic double-mesh twin-wire media for meta-lenses

H Wang, Q Chen, O Zetterstrom, O Quevedo-Teruel - Applied Sciences, 2021 - mdpi.com
Lenses are used for multiple applications, including communications, surveillance and
security, and medical instruments. In homogeneous lenses, the contour is used to control the …

High refractive index electromagnetic devices in printed technology based on glide-symmetric periodic structures

P Arnberg, O Barreira Petersson, O Zetterstrom… - Applied Sciences, 2020 - mdpi.com
We demonstrate the beneficial effects of introducing glide symmetry in a two-dimensional
periodic structure. Specifically, we investigate dielectric parallel plate waveguides …

Fully metallic flat lens based on locally twist-symmetric array of complementary split-ring resonators

O Dahlberg, G Valerio, O Quevedo-Teruel - Symmetry, 2019 - mdpi.com
In this article, we demonstrate how twist symmetries can be employed in the design of flat
lenses. A lens design is proposed, consisting of 13 perforated metallic sheets separated by …

[HTML][HTML] Dispersion analysis of twist-symmetric dielectric waveguides

P Castillo-Tapia, K Van Gassen, Q Chen, F Mesa… - Photonics, 2021 - mdpi.com
We propose a circular twist-symmetric dielectric waveguide that is polarization-selective. In
the practical implementation of optical fibers, a selective circular polarization is more …

Dispersion control and radiation based on glide-symmetric spoof surface plasmon polaritons

JY Yin, XY Cao, FX Li, JY Deng - Optics Express, 2024 - opg.optica.org
Glide symmetry transmission line (TL) is a highly symmetric TL with characteristics such as
reduced frequency dispersion and merged passband. The dispersion characteristics and …

Dispersion analysis of periodically loaded transmission lines with twist symmetry using the mode-matching technique

O Zetterstrom, G Valerio, F Mesa, F Ghasemifard… - Applied Sciences, 2020 - mdpi.com
A mode-matching formulation is presented and used to analyze the dispersion properties of
twist-symmetric transmission lines. The structures are coaxial lines periodically loaded with …

Mode-matching analysis of loaded transmission lines with twist symmetries

O Zetterstrom, G Valerio, F Mesa… - 2020 14th European …, 2020 - ieeexplore.ieee.org
This paper studies the propagation characteristics in twist-symmetric structures by means of
a mode-matching approach. The studied structures are coaxial transmission lines …

Higher Symmetries in Hexagonal Periodic Structures

O Zetterstrom, F Mesa… - 2024 18th European …, 2024 - ieeexplore.ieee.org
We study higher-symmetric periodic structures with hexagonal lattice arrangement. We
define three ways to synthesize a glide symmetry in a hexagonal lattice. If the periodic motifs …