Electromagnetic coupling suppression of eight-ports MIMO antenna for satellite communication with neutralize block and parasitic elements

Khan, Muhammad Irshad; Liu, Shaobin; Mao, Jianliang; Basit, Abdul; Ahmed, Ashfaq; Daraz, Amil

doi:10.1016/j.aeue.2023.154821

Cited by 7 publications

(1 citation statement)

References 35 publications

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“…An essential characteristic of electromagnetic waves is the manipulation and control of polarization, which is a key focus of researchers who want to do this through the building of subwavelength artificial structures. Polarization has been employed in various applications, including displays [1][2][3][4], metasurface based antennas [5][6][7], medical imaging [8,9], and radio frequency RF communications [10][11][12]. According to conventional methods, to dictate the polarization in crystals is heavily reliant on optical activity, which serves as a crucial parameter.…”

Section: Introductionmentioning

confidence: 99%

An angular stable ultra-broadband asymmetric transmission chiral metasurface with efficient linear-polarization conversion

Ahmed,

Cao,

Khan

et al. 2024

Phys. Scr.

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In this paper, a chiral metasurface is presented to effectively attain an ultra-broadband operation of asymmetric transmission with highly efficient cross-polarization conversion. The efficiency of the asymmetric transmission operation in the frequency band ranging from 6.5 to 13 GHz is above 70%. Additionally, in the frequency range from 3.7 to 14 GHz, the cross-polarization conversion realizes greater than 90% polarization conversion ratio. Asymmetric transmission as well as cross-polarization conversion show angular stability against the incident angle of electromagnetic waves up to 45°. To validate the simulation results, the fabricated chiral metasurface is tested and compared with simulation results. The concepts of asymmetric transmission and linear-polarization conversion are demonstrated and physically explained through the distributions of surface currents over metallic layers. This anticipated work has significant applications in telecommunications and radar, as well as potential use in equipment designed for the manipulation of electromagnetic waves.

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