TY - JOUR
T1 - An angular stable ultra-broadband asymmetric transmission chiral metasurface with efficient linear-polarization conversion
AU - Ahmed, Afzal
AU - Cao, Qunsheng
AU - Khan, Muhammad Ismail
AU - Shah, Gulab
AU - Ahmed, Fahad
AU - Khan, Muhammad Irshad
AU - Abidin, Zain Ul
PY - 2024/3
Y1 - 2024/3
N2 - 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. © 2024 IOP Publishing Ltd.
AB - 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. © 2024 IOP Publishing Ltd.
KW - asymmetric transmission
KW - cross-polarization conversion (CPC)
KW - metasurface
KW - ultra-broadband
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U2 - 10.1088/1402-4896/ad25d1
DO - 10.1088/1402-4896/ad25d1
M3 - RGC 21 - Publication in refereed journal
SN - 0031-8949
VL - 99
JO - Physica Scripta
JF - Physica Scripta
IS - 3
M1 - 035519
ER -