Millimetre‐wave design and verification of a meta‐surface dielectric window made of polytetrafluoroethylene in Ka‐ and Q‐band

Wang, Yu; Wang, Weijie; Fang, Chao; Wu, Zewei; Luo, Yong

doi:10.1049/iet-map.2020.0385

Cited by 11 publications

(2 citation statements)

References 21 publications

(26 reference statements)

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“…The metasurface resembles a two-dimensional artificial EM structure arranged by subwavelength elements. With a delicate modulation ability for the amplitude, phase, and polarization of EM waves, the metasurface shows great potential in new system communication [ 14 ], EM stealth [ 15 , 16 , 17 ], holography [ 18 ], and other EM applications [ 19 , 20 , 21 , 22 , 23 , 24 , 25 , 26 ]. It not only displays the advantages of small weight, a low profile, and easy fabrication, but also builds the feasibility for the mode multiplexing of OAM beams.…”

Section: Introductionmentioning

confidence: 99%

“…This proposed design has great potential to enhance the capability of OAM wave multiplexing and wireless communication system transmission. polarization of EM waves, the metasurface shows great potential in new system communication [14], EM stealth [15][16][17], holography [18], and other EM applications [19][20][21][22][23][24][25][26]. It not only displays the advantages of small weight, a low profile, and easy fabrication, but also builds the feasibility for the mode multiplexing of OAM beams.…”

Section: Introductionmentioning

confidence: 99%

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Frequency Scanning Dual-Mode Asymmetric Dual-OAM-Wave Generation Base on Broadband PB Metasurface

Zheng

Tang

et al. 2022

Micromachines

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Increasing information capacity is significant for high-speed communication systems in a congested radio frequency sequence. Vortex waves carrying mode orthogonal orbital angular momentum (OAM) have gained considerable attention in recent years, owing to their multiplexing quality. In this study, a broadband Pancharatnam–Berry (PB) metasurface element with a simple structure is proposed, which exhibits an efficient reflection of the co-polarized component and a full 2π phase variation in 10.5–21.5 GHz under circularly polarized wave incidence. By convolution and addition operations, the elaborate phase distribution is arranged and the corresponding metasurface-reflecting dual-mode asymmetric dual-OAM waves is constructed. Under continuous control of the working frequency, the OAM vortex beams with the topological charges 1 and −1 are steered to scan within the angle range of 11.9°–24.9° and 17.9°–39.1° at φ = 315° and 135° planes, respectively. The simulation and measurement results verified the feasibility of generating frequency-controlled asymmetric dual beams and the validity of dual-mode OAM characteristics, both in the near and far fields. This design approach has considerable potential in OAM wave multiplexing and wireless communication system transmission.

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