Low‐loss ultra‐wideband beam switching metasurface antenna in X‐band

Swain, Rajanikanta; Naik, Deepak Kumar; Panda, Asit K.

doi:10.1049/iet-map.2019.0994

Cited by 8 publications

(4 citation statements)

References 21 publications

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“…As 2D artificial metamaterials, metasurfaces, which have the advantages of being ultrathin and ultracompact, have shown flexibility in regulating the polarization, amplitude, and phase of light on the subwavelength scale. [7][8][9][10][11] By appropriately designing the distribution of scattered nanounit structures, metasurfaces can be used for optical elements with various functions, such as orbital angular momentum, [12][13][14][15][16][17] optical switching, [18][19][20] spin Hall effect, [21][22][23][24] beam focusing, [17,[25][26][27] nanoprinting, [28][29][30][31][32][33] and holographic imaging. [4,[34][35][36][37][38][39][40][41] Recently, metasurfaces have exhibited significant potential in miniaturized and high-security information encryption devices owing to their small size, high resolution, and low manufacturing cost.…”

Section: Introductionmentioning

confidence: 99%

Multi‐Channel Image Encryption Based on an All‐Dielectric Metasurface Incorporating Near‐Field Nanoprinting and Far‐Field Holography

Yuan

Zhong

Zhang

et al. 2023

Advanced Optical Materials

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Metasurfaces that can efficiently control the light‐field characteristics have shown many advantages in ultra‐compact, high‐resolution, and high‐concealment optical imaging such as nanoprinting and holography. The development of metasurfaces with multiple functions operating at multiple wavelengths can promote the progress of optical imaging with high information storage and encryption densities. Here, an all‐dielectric metasurface is proposed for multi‐channel image encryption in the near field by controlling the amplitude distribution based on Marius’ law and for holographic imaging in the far field by controlling the phase distribution based on the Pancharatnam–Berry phase. This metasurface can realize the pattern imaging of 12 channels by independently regulating the three‐wavelength channel and different polarization modes. The metasurface achieves independent control of the amplitude, phase, polarization, and wavelength of the incident light wave, improving the storage capacity of information and its encryption security level. The proposed multichannel metasurface provides an effective solution for high‐capacity optical encryption and information storage applications.

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Section: Introductionmentioning

confidence: 99%

Multi‐Channel Image Encryption Based on an All‐Dielectric Metasurface Incorporating Near‐Field Nanoprinting and Far‐Field Holography

Yuan

Zhong

Zhang

et al. 2023

Advanced Optical Materials

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“…In [22] UWB MIMO array installed around a polystyrene block in the 3D-octagonal arrangement system was proposed for 3D non-planar applications. In [23], a UWB metasurface-based beam-switching antenna system was proposed. A four-element planar UWB antenna requiring no decoupling circuit for MIMO system was developed in [24].…”

Section: Introductionmentioning

confidence: 99%

A Planar Four-Element UWB Antenna Array with Stripline Feeding Network

Garbaruk

2022

Electronics

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This paper proposes a four-element ultrawideband (UWB) planar antenna array with elliptical-shaped radiators and a stripline excitation network designed for the 6–8.5 GHz UWB frequency band allowed in Europe by the European Commission. The designed antenna array has a symmetrical structure in which the radiators are placed along one line in the central conducting layer, arranged between two layers of a dielectric. Radiating elements are fed by the stripline excitation network that provides uniform power distribution. The dimensions of the elliptical radiators’ axes are 14 mm × 16 mm. Two variants of array are proposed. The distance between the radiators’ centers is L = 19 mm for a shorter variant and L = 24 mm for a longer one. The presented antenna array structures have a size of 81 mm × 41 mm and 96 mm × 41 mm. These arrays present a measured gain of 6.4–10.6 dBi for the shorter variant and 8.5–10.8 dBi for the longer one and a fair impedance matching. The measured |S11| is less than −8.7 dB and −9.7 dB for the shorter and longer corresponding variants.

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“…In order to solve the aforementioned problem, metasurface antenna has been proposed to satisfy the needs of the integrated design of metasurface and antenna [18][19][20][21][22][23]. As is proposed in [22], the unit of 2 × 2 SRRs array can not only be regarded as a liner polarized antenna element but also be considered as the metasurface cell.…”

Section: Introductionmentioning

confidence: 99%

Dynamic RCS Reduction Performances of Antenna Array with Coding Metasurface

Chen

Yang

et al. 2022

International Journal of Antennas and Propagation

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On the basis of combining the two concepts of digital coding metasurface and metasurface antenna, low radar cross-section (RCS) coding metasurface antenna array with dynamic scattering performances is presented in this paper. Extending scattering factor theory to coding metasurface antenna, by controlling the states of PIN diodes randomly, the scattering performances of coding metasurface antenna array can be tuned dynamically without degrading its radiation property. Based on phase cancellation principle, a 8 × 8 antenna array was finally simulated and fabricated. By comparing several different layouts, taking checkerboard layout, new chessboard layout, and “0101” square ring nested layout as examples, both monostatic and bistatic RCS of the antenna mentioned above can be reduced 10 dB or more in the frequency range of 9–10.5 GHz under the illumination of x-polarized incident wave. The measured data are consistent with the simulation data, which proves the effectiveness of the proposed method.

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Low‐loss ultra‐wideband beam switching metasurface antenna in X‐band

Cited by 8 publications

References 21 publications

Multi‐Channel Image Encryption Based on an All‐Dielectric Metasurface Incorporating Near‐Field Nanoprinting and Far‐Field Holography

Multi‐Channel Image Encryption Based on an All‐Dielectric Metasurface Incorporating Near‐Field Nanoprinting and Far‐Field Holography

A Planar Four-Element UWB Antenna Array with Stripline Feeding Network

Dynamic RCS Reduction Performances of Antenna Array with Coding Metasurface

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