Design and Implementation of a Dual Frequency and Bidirectional Phase Gradient Metasurface for Beam Convergence

Hao, Yue; Chen, Lei; Yang, Ya-Bing; He, Liqun; Shi, Xiaowei

doi:10.1109/lawp.2018.2880491

Cited by 26 publications

(18 citation statements)

References 13 publications

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“…The proposed laser drilled all-dielectric Huygens' transmit-array may thus represent an attractive alternate to a standard PCB based fabrication for passive antenna beam-forming above 100-GHz for beyond 5G communication networks. [60] Standard PCB process 4 9.4 to 10.6 GHz Beam-focusing [61] Standard PCB process 6 5.6 & 15 GHz Beam-focusing [62] Standard PCB process 2 20 GHz Beam-tilting [19] Standard PCB process 2 24 to 28 GHz Lens [46] Standard PCB process 2 58 to 63 GHz Beam-tilting, splitting & lens [52] Standard PCB process 3 83 GHz Lens [53] Standard PCB process 3 83 GHz Beam-tilting [63] All-dielectric CNC-machining 3 9 to 11 GHz Beam-tilting [47] CNC…”

Section: Discussionmentioning

confidence: 99%

Laser-Drilled All-Dielectric Huygens’ Transmit-Arrays as 120 GHz Band Beamformers

et al. 2020

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An all-dielectric Huygens' transmit-array is proposed and experimentally demonstrated in the 120-GHz-band. The proposed transmit-array is fabricated using a high-precision laser-drilling process providing high fabrication precision and accuracy. A non-uniform Huygens' surface is next placed on top of a planar high gain slot-array antenna for far-field beamforming. Full-wave simulations are first used to demonstrate the beamforming capability by generating difference-pattern beams as an example. A uniform transmit-array was then fabricated and characterized to investigate the effect of the transmitarray on the antenna performance, along with showing very low fabrication tolerances and minimal dimensional variation due to the laser drilling process. Next, a phase-gradient transmit-array for beamtilting is experimentally demonstrated as a practical example of beamforming. The proposed all-dielectric structure is the first Huygens' structure to be demonstrated at these frequency bands, and represents an attractive alternative to conventional metallic Huygens' metasurfaces based on standard printed circuit board (PCB) solutions.

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Section: Discussionmentioning

confidence: 99%

Laser-Drilled All-Dielectric Huygens’ Transmit-Arrays as 120 GHz Band Beamformers

et al. 2020

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“…In recent years, metasurface are used to realize near-field focusing. [12][13][14][15][17][18][19][20][21][22][23][24] Although 21 uses one metal layer, it can achieve only one polarization response. MSs in References 22-24 have good focusing performance, but the antennas occupied large size or employed four metal layers.…”

Section: Introductionmentioning

confidence: 99%

Multifunctional near field focusing transmission metasurface based on polarization sensitivity

Huang

Zhang

2021

Micro & Optical Tech Letters

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In this paper, a near field focusing transmission metasurface (MS) based on polarization sensitivity is developed at microwave frequency. The MS unit cell has only three metal layers, which is less than the published dualpolarized transmission structure. And the phase shifting range can cover 320 for x-and y-polarized waves. The biggest bright spot of the focusing MS made of the proposed units is its changeable focus point by rotating the horn 0 -90 round its central axis: focusing switching between one and two focusing points. In addition, the developed MS has the following advantages: multifunctional, low sidelobe, high focusing efficiency, small size, wideband, and less layer number. The focusing relative bandwidth is 9.7%, and the maximum focusing efficiency is 30% at center frequency 15.5 GHz. The efficiency is higher than that of published results in transmission orthogonal polarization mode. The proposed MS has potential applications in medical treatment, noncontact sensing system.

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“…And by combining rod resonator of Huygen's source, 4 broadband metasurfaces were achieved 5 . Furthermore, PGM is the bridge to link propagating waves and surface waves, where 'H'‐shaped structure was used, 6 leading to the extensive investigation on antenna designs 7–14 . These designs can be divided into two categories, one takes PGM as the enhanced device to improve antenna performance, 7–9 and the other as the radiators 10–14 .…”

Section: Introductionmentioning

confidence: 99%

Rectangular‐cavity‐like feed for radiation of phase gradient metasurface

Sun

Wan

et al. 2021

Micro & Optical Tech Letters

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In this letter, a rectangular‐cavity‐like structure is proposed to feed the phase gradient metasurface (PGM), where two symmetrical long slots are cut on side walls along wave propagation direction of the rectangular waveguide cavity resonator. It consists of rectangular waveguide, transition section, slotted‐waveguide feed section, and shorted end of the cavity. The PGMs are placed in the slotted‐waveguide section and the slot is wide enough to accommodate PGMs. The antenna prototype is fabricated and measured whose measurements agree well with simulations in 7.8–11.0GHz.

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Design and Implementation of a Dual Frequency and Bidirectional Phase Gradient Metasurface for Beam Convergence

Cited by 26 publications

References 13 publications

Laser-Drilled All-Dielectric Huygens’ Transmit-Arrays as 120 GHz Band Beamformers

Laser-Drilled All-Dielectric Huygens’ Transmit-Arrays as 120 GHz Band Beamformers

Multifunctional near field focusing transmission metasurface based on polarization sensitivity

Rectangular‐cavity‐like feed for radiation of phase gradient metasurface

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