TY - GEN
T1 - Circular Dichroism in Dual-Band via Asymmetric Transmissive Chiral Metasurface
AU - Noman, Muhammad
AU - Zafar, Jamal
AU - Ur-Rehman, Masood
AU - Tahir, Farooq A.
AU - Imran, Muhammad
AU - Abbasi, Qammer H.
N1 - Publisher Copyright:
© 2025 IEEE.
PY - 2025
Y1 - 2025
N2 - Metasurfaces, composed of subwavelength-scale meta-atoms, offer extensive capabilities in electromagnetic (EM) wave manipulation. In this study, we present a dual-functional transmissive chiral metasurface (TCMS) designed to achieve dual-band circular dichroism (CD) at 12.62 GHz and 16.305 GHz within the Ku-band, with CD values of 0.5 and 0.4, respectively, alongside asymmetric transmission (AT). These functionalities are realized simultaneously for right-hand circularly polarized (RHCP) and left-hand circularly polarized (LHCP) incident waves. Simulation results show that the dual-band CD effect is driven by the structural asymmetry of the chiral metasurface. Compared to single-function metasurfaces, this TCMS offers enhanced performance and dual-functionality while maintaining compactness. We believe that this dual-band, dual-functional TCMS, with its simplified geometry, holds significant promise for applications in analytical chemistry, imaging, sensing, spectroscopy, satellite communication, and the development of advanced communication components that enable efficient polarization manipulation.
AB - Metasurfaces, composed of subwavelength-scale meta-atoms, offer extensive capabilities in electromagnetic (EM) wave manipulation. In this study, we present a dual-functional transmissive chiral metasurface (TCMS) designed to achieve dual-band circular dichroism (CD) at 12.62 GHz and 16.305 GHz within the Ku-band, with CD values of 0.5 and 0.4, respectively, alongside asymmetric transmission (AT). These functionalities are realized simultaneously for right-hand circularly polarized (RHCP) and left-hand circularly polarized (LHCP) incident waves. Simulation results show that the dual-band CD effect is driven by the structural asymmetry of the chiral metasurface. Compared to single-function metasurfaces, this TCMS offers enhanced performance and dual-functionality while maintaining compactness. We believe that this dual-band, dual-functional TCMS, with its simplified geometry, holds significant promise for applications in analytical chemistry, imaging, sensing, spectroscopy, satellite communication, and the development of advanced communication components that enable efficient polarization manipulation.
KW - Analytical Chemistry
KW - Asymmetric Transmission
KW - Chiral
KW - Circular Dichroism
KW - Imaging
KW - Ku-band
KW - LHCP
KW - Left-Hand Circular Polarization
KW - Metasurface
KW - Polarization Conversion
KW - RHCP
KW - Right-Hand Circular Polarization
KW - Satellite Communication
KW - Sensing
KW - Transmissive
UR - https://www.scopus.com/pages/publications/105007427810
U2 - 10.1109/ICMAC64768.2025.11003225
DO - 10.1109/ICMAC64768.2025.11003225
M3 - Conference contribution
AN - SCOPUS:105007427810
T3 - 2025 2nd International Conference on Microwave, Antennas and Circuits, ICMAC 2025
BT - 2025 2nd International Conference on Microwave, Antennas and Circuits, ICMAC 2025
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2nd International Conference on Microwave, Antennas and Circuits, ICMAC 2025
Y2 - 17 April 2025 through 18 April 2025
ER -