Design of a LP, RHCP and LHCP Polarization-Reconfigurable Holographic Antenna

Li, Mei; Tang, Ming‐Chun; Xiao, Shaoqiu

doi:10.1109/access.2019.2923672

Cited by 21 publications

(15 citation statements)

References 35 publications

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“…From the scalar nature of the metasurface follows that the TM and TE polarization of the field could be designed separately. This aspect has been used to design polarization-insensitive antennas [111], dual-circularly polarized antenna [112], polarization reconfigurable antennas [113] and to generate different beams using multiple sources [114].…”

Section: Holographic Antennasmentioning

confidence: 99%

An overview of metasurfaces for thin antenna applications

Casaletti¹,

Valerio²,

Quevedo–Teruel³

et al. 2021

Comptes Rendus. Physique

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In recent years, metasurfaces have become a rapidly growing domain of research in several fields of engineering and applied physics due to their ability to manipulate both phase and amplitude of electromagnetic fields. These artificial 2D-materials, usually composed of metallic elements printed on dielectric substrates, have the advantages of being low profile, lightweight as well as easy to fabricate and integrate with standard circuit technologies. In this context, this paper reviews the latest progress in metasurface antenna design, where metasurfaces are used to miniaturize the profile, increase the bandwidth, and control the radiation pattern in the near-and far-field regions.Résumé. Ces dernières années, la thématique des métasurfaces est devenue un sujet de recherche en pleine expansion dans plusieurs domaines de l'ingénierie et de la physique appliquée, en raison de leur capacité à manipuler à la fois la phase et l'amplitude des champs électromagnétiques. Ces matériaux artificiels bidimensionnels, généralement composés d'éléments métalliques imprimés sur des substrats diélectriques, ont l'avantage d'être de très faible épaisseur, légers et faciles à fabriquer et à intégrer avec les circuits imprimés. Cet article passe en revue les dernières avancées dans la conception d'antennes à métasurface, où les métasurfaces sont utilisées pour minimiser l'épaisseur, augmenter la bande passante et contrôler le diagramme de rayonnement en champ proche et en champ lointain.

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Section: Holographic Antennasmentioning

confidence: 99%

An overview of metasurfaces for thin antenna applications

Casaletti¹,

Valerio²,

Quevedo–Teruel³

et al. 2021

Comptes Rendus. Physique

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show abstract

“…A similar approach was used to realize dual reconfigurable polarizations using tensor impedance surfaces, and recently proposed in [27]. Another recently-proposed design achieves polarization reconfigurability by using polarization-insensitive holographic surfaces, where the reconfiguration is facilitated by diodes on the surface-wave launchers [28].…”

Section: Polarization-reconfigurable Holographic Lwasmentioning

confidence: 99%

Metasurfaces for Reconfiguration of Multi-Polarization Antennas and Van Atta Reflector Arrays

et al. 2020

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This paper discusses the application of metasurfaces for three different classes of antennas: reconfiguration of surface-wave antenna arrays, realization of high-gain polarization-reconfigurable leaky-wave antennas (LWAs), and performance enhancement of van Atta retrodirective reflectors. The proposed surface-wave antenna is designed by embedding four square ring elements within a metasurface, which improves matching and enhances the gain when compared to conventional square-ring arrays. The design for linear polarization comprises of a 1 × 4 arrangement of ring elements, with a 0.56λ spacing, placed amidst periodic patches. A 2 × 2 arrangement of ring elements is utilized for reconfiguration from linear to circular polarization, where a similar peak gain with better port isolation is realized. A prototype of the 2 × 2 array is fabricated and measured; a good agreement is observed between simulations and measurements. In addition, the concepts of the design of polarization-diverse holographic metasurface LWAs that form a pencil beam in the desired direction with a reconfigurable polarization are discussed. Moreover, recent developments incorporating polarization-reconfigurability in metasurface LWAs are briefly reviewed. In the end, the theory of van Atta arrays is outlined and their monostatic RCS is reviewed. A conventional retrodirective array is designed using aperture-coupled patch antennas with a microstrip-line feeding network, where the scattering from the structure itself degrades the performance of the reflector. This is followed by the integration of judiciously synthesized metasurfaces to reconfigure and improve the performance of retrodirective reflectarrays by removing the above-mentioned undesired scattering from the structure.

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“…Compared with features such as frequency [12,13], intensity [14,15], direction [16], and spin angular momentum [17], the utilization of polarization state has been proved to be a popular method. Under different incident polarization states, a rich number of multi-functional devices were delicately designed, such as beam splitters [18,19], chiral structures [20,21], antenna [22], holographic devices [23,24]. On the other hand, intensity-dependent multi-functional devices also attract more and more attention since the beginning of this century [25].…”

Section: Introductionmentioning

confidence: 99%

Anisotropic and nonlinear metasurface for multiple functions

Luo

Ren

Wang

et al. 2021

Sci. China Inf. Sci.

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We present a novel anisotropic and nonlinear metasurface integrated with multiple functions of diffuse scattering, beam splitting, and normal reflection, which can be switched in real time by tuning the polarization state or power level of the incident microwave. The key lies in the two judiciously designed anisotropic nonlinear particles in subwavelength scales that possess opposite reflection phases under one polarization and the same nonlinear power-dependent reflection phases under the orthogonal polarization. These properties are demonstrated comprehensively via comparisons between their reflection responses, receiving abilities, and nonlinear circuitry behaviors. In addition, both the spatial arrangement and the electrically enabling strategy of the particles are underpinned to pursue the proposed functions, which are verified through numerical simulations and measurements. When the metasurface is illuminated by plane waves coming from the direction perpendicular to it, a significant beam splitting effect is achieved with strong x-polarized incidence, which is switched to a specular reflection when the incoming power decreases. Under y-polarization, a diffuse scattering phenomenon is obtained, which is not dependent on the incident intensity. The study is expected to offer new solutions to many electromagnetic scenarios involving energy transmissions and protections.

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Design of a LP, RHCP and LHCP Polarization-Reconfigurable Holographic Antenna

Cited by 21 publications

References 35 publications

An overview of metasurfaces for thin antenna applications

An overview of metasurfaces for thin antenna applications

Metasurfaces for Reconfiguration of Multi-Polarization Antennas and Van Atta Reflector Arrays

Anisotropic and nonlinear metasurface for multiple functions

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