A phased array antenna with a broadly steerable beam based on a low-loss metasurface lens

Liu, Yahong; Jin, Xueyu; Zhou, Xin; Luo, Yang; Song, Kun; Huang, Lvhongzi; Zhao, Xiaopeng

doi:10.1088/0022-3727/49/40/405304

Cited by 9 publications

(7 citation statements)

References 50 publications

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“…Unlike the previously studied steerable beam antenna, we have designed a novel phased array antenna with a broadly steerable beam by using a gradient phase discontinuity metasurface. [93] The designed metasurface shown in Figs. 17(a) and 17(b) can realize a gradient transmission phase and can refract the incident plane electromagnetic wave at an angle of θ t = 45 • .…”

Section: Broadly Steerable Beam Antenna Based On Metasurfacementioning

confidence: 99%

“…Li et al [81,82] demonstrated that linearto-circular polarization conversion focusing metasurface can be used to design circularly polarized high-gain antenna. We have proposed and experimentally demonstrated several types of metasurfaces-based antennas, [56,57,[87][88][89][90][91][92][93][94][95][96][97][98] including more directional linearly polarized antennas, circularly polarized antenna, and omnidirectional antenna.…”

Section: Introductionmentioning

confidence: 99%

“…17. (color online) (a) One period of metasurface, (b) fabricated metasurface lens, (c) conventional phased array antenna, (d) phased array antenna with the metasurface lens, and (e) far-field radiation patterns of the phased array antennas [93].…”

mentioning

confidence: 99%

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Metamaterials and metasurfaces for designing metadevices: Perfect absorbers and microstrip patch antennas

Liu

Zhao

2018

Chinese Phys. B

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In the past twenty years, electromagnetic metamaterials represented by left-handed metamaterials (LHMs) have attracted considerable attention due to the unique properties such as negative refraction, perfect lens, and electromagnetic cloaks. In this paper, we present a comprehensive review of our group's work on metamaterials and metasurfaces. We present several types of LHMs and chiral metamaterials. As a two-dimensional equivalent of bulk three-dimensional metamaterials, metasurfaces have led to a myriad of devices due to the advantages of lower profile, lower losses, and simpler to fabricate than bulk three-dimensional metamaterials. We demonstrate the novel microwave metadevices based on metamaterials and metasurfaces: perfect absorbers and microwave patch antennas, including novel transmission line antennas, high gain resonant cavity antennas, wide scanning phased array antennas, and circularly polarized antennas.

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Section: Broadly Steerable Beam Antenna Based On Metasurfacementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Metamaterials and metasurfaces for designing metadevices: Perfect absorbers and microstrip patch antennas

Liu

Zhao

2018

Chinese Phys. B

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“…Figure 1(a) shows a unit cell of the metasurface consisting of a cylindrical dielectric resonator and a metallic rod. In [31], we have demonstrated that the metallic rod provides the necessary broadband electric polarization, and the cylindrical dielectric resonator provides the necessary broadband magn etic polarization. The transient solver of the commercial software CST Microwave Studio ® is used to design the proposed broadband high-transmission metasurface.…”

Section: A Broadband High-transmission Abnormal Refraction Metasurfacementioning

confidence: 98%

A broadband high-transmission gradient phase discontinuity metasurface

Liu

Song

et al. 2018

J. Phys. D: Appl. Phys.

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Metasurfaces have attracted significant attention due to the control of the electromagnetic waves that they enable. In this paper, we demonstrate a high-transmission gradient phase discontinuity metasurface composed of metallic rods and cylindrical dielectric resonators operating at a broadband microwave frequency from 8 GHz to 9.8 GHz, with a fractional bandwidth of 20.2%. The proposed gradient phase discontinuity metasurface can achieve complete 2π transmission phase coverage with π/4 phase intervals by varying the geometric parameters of the dielectric resonators and metallic rods. It is shown that the proposed metasurface can refract a normally incident plane wave to an angle of 30°. The broadband metasurface is flexible, and the refracted angle can be adjusted easily by varying the lattice constant. Besides the broadband anomalous refraction, we also demonstrate the metasurface can produce an interesting vortex and wave-focusing in the wide frequency range from 8 GHz to 9.8 GHz. Finally, we demonstrate that the present metasurface can tailor interference wavefronts to plane wavefronts.

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“…Metasurfaces are a kind of artificial smart material to control light propagation [4][5][6][7][8][9][10][11], and have demonstrated the great capability of efficiently rebuilding a wavefront with well collimated beams [12][13][14][15][16][17], producing the desired tunable scattering performance [18][19][20][21], and offering practical strategies to manipulate electromagnetic fields on the coating surfaces [22][23][24][25][26]. In particular, metasurfaces functioning as qualified candidates of the PRSs with reconfigurable characteristics have been employed to improve radiation from FP resonant cavities, where different arrangements of meta-atoms are shown to be capable of producing various radiation patterns.…”

Section: Introductionmentioning

confidence: 99%

Two-dimensional frequency scanning from a metasurface-based Fabry–Pérot resonant cavity

Yang¹,

Yang²

2018

J. Phys. D: Appl. Phys.

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A spatial angular filtering metasurface is introduced into a Fabry–Pérot (FP) resonant cavity design for the frequency scanning performance in this paper. More specifically, asymmetrical unit cells printed on the metasurface enable the radiation energy to move in different directions as the frequency changes, and the released emissions, meanwhile, are split into dual-beams from the initial pencil beam. We continue to implement a patch array to provide excitation with the aim of achieving scanned beams in another dimension, and the proposed design ultimately demonstrates a two-dimensional dual-beam scanning performance with 42° and 9° scanning angles respectively in two dimensions of the coordinate system over a frequency range from 10.50 GHz–11.25 GHz. The proposed technique, by integrating a spatial angular filtering metasurface with a patch array feed to generate steerable beams, should offer an efficient way to fulfill FP resonant cavities with reconfigurable radiation.

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A phased array antenna with a broadly steerable beam based on a low-loss metasurface lens

Cited by 9 publications

References 50 publications

Metamaterials and metasurfaces for designing metadevices: Perfect absorbers and microstrip patch antennas

Metamaterials and metasurfaces for designing metadevices: Perfect absorbers and microstrip patch antennas

A broadband high-transmission gradient phase discontinuity metasurface

Two-dimensional frequency scanning from a metasurface-based Fabry–Pérot resonant cavity

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