Circular Dichroism and Cross Polarization Conversion Using Chiral Metasurface
This paper presents a novel dual-mode chiral metasurface (CM) designed to achieve strong circular dichroism (CD) in both transmission and reflection mode within the Ku-band. The proposed dual-mode CM demonstrates CD i.e., an efficient conversion of linearly polarized (LP) electromagnetic (EM) waves...
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IEEE
2025-01-01
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| Series: | IEEE Open Journal of Antennas and Propagation |
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| Online Access: | https://ieeexplore.ieee.org/document/10993380/ |
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| author | Muhammad Noman Hattan Abutarboush Khurram K. Qureshi Adnan Zahid Farooq A. Tahir Muhammad Imran Qammer H. Abbasi |
| author_facet | Muhammad Noman Hattan Abutarboush Khurram K. Qureshi Adnan Zahid Farooq A. Tahir Muhammad Imran Qammer H. Abbasi |
| author_sort | Muhammad Noman |
| collection | DOAJ |
| description | This paper presents a novel dual-mode chiral metasurface (CM) designed to achieve strong circular dichroism (CD) in both transmission and reflection mode within the Ku-band. The proposed dual-mode CM demonstrates CD i.e., an efficient conversion of linearly polarized (LP) electromagnetic (EM) waves into circularly polarized (CP) waves, both within a broader spectrum as well as at single frequencies in both transmission and reflection mode, exhibiting asymmetric transmission (AT) response. This is achieved through a judiciously designed unit cell structure, which eliminates the requirement for intricate supercell configurations or active circuitry. The metasurface comprises a circular ring structure embedded with intelligently placed angle-induced slot and a metallic strip, fabricated using the cost-effective FR-4 substrate. The structure on the front side of the dual-mode CM is replicated on the back side of the substrate with a 90° rotation to achieve a chiral configuration. Under the forward-propagating y-polarized incident wave, the dual-mode CM demonstrates the capability to convert LP wave into right-handed circularly polarized (RHCP) wave at 14.064 GHz. Additionally, in transmission mode, it converts LP waves to left-handed circularly polarized (LHCP) wave over a wider frequency range of 16.60 – 17.03 GHz with AT response. In reflection mode, the dual-mode CM converts LP wave into RHCP wave at 12.048 GHz when subject to x-polarized incident wave propagating in the backward direction. |
| format | Article |
| id | doaj-art-d6a0da1f8a97432f8c94e9beaff32bf7 |
| institution | Kabale University |
| issn | 2637-6431 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Open Journal of Antennas and Propagation |
| spelling | doaj-art-d6a0da1f8a97432f8c94e9beaff32bf72025-08-20T03:36:11ZengIEEEIEEE Open Journal of Antennas and Propagation2637-64312025-01-01641226123610.1109/OJAP.2025.356827010993380Circular Dichroism and Cross Polarization Conversion Using Chiral MetasurfaceMuhammad Noman0https://orcid.org/0000-0003-2482-6731Hattan Abutarboush1https://orcid.org/0000-0003-3039-7849Khurram K. Qureshi2https://orcid.org/0000-0001-6072-6653Adnan Zahid3https://orcid.org/0000-0001-5364-6057Farooq A. Tahir4Muhammad Imran5https://orcid.org/0000-0003-4743-9136Qammer H. Abbasi6https://orcid.org/0000-0002-7097-9969James Watt School of Engineering, University of Glasgow, Glasgow, U.K.College of Engineering, Taibah University, Madinah, Saudi ArabiaElectrical Engineering Department, Optical Communications and Sensing Laboratory, King Fahd University of Petroleum and Minerals, Dhahran, Saudi ArabiaSchool of Engineering and Physical Science, Heriot Watt University, Edinburgh, U.K.James Watt School of Engineering, University of Glasgow, Glasgow, U.K.James Watt School of Engineering, University of Glasgow, Glasgow, U.K.James Watt School of Engineering, University of Glasgow, Glasgow, U.K.This paper presents a novel dual-mode chiral metasurface (CM) designed to achieve strong circular dichroism (CD) in both transmission and reflection mode within the Ku-band. The proposed dual-mode CM demonstrates CD i.e., an efficient conversion of linearly polarized (LP) electromagnetic (EM) waves into circularly polarized (CP) waves, both within a broader spectrum as well as at single frequencies in both transmission and reflection mode, exhibiting asymmetric transmission (AT) response. This is achieved through a judiciously designed unit cell structure, which eliminates the requirement for intricate supercell configurations or active circuitry. The metasurface comprises a circular ring structure embedded with intelligently placed angle-induced slot and a metallic strip, fabricated using the cost-effective FR-4 substrate. The structure on the front side of the dual-mode CM is replicated on the back side of the substrate with a 90° rotation to achieve a chiral configuration. Under the forward-propagating y-polarized incident wave, the dual-mode CM demonstrates the capability to convert LP wave into right-handed circularly polarized (RHCP) wave at 14.064 GHz. Additionally, in transmission mode, it converts LP waves to left-handed circularly polarized (LHCP) wave over a wider frequency range of 16.60 – 17.03 GHz with AT response. In reflection mode, the dual-mode CM converts LP wave into RHCP wave at 12.048 GHz when subject to x-polarized incident wave propagating in the backward direction.https://ieeexplore.ieee.org/document/10993380/Asymmetric transmission (AT)chiral metasurface (CM)circularly polarized (CP)dual-modelinearly polarized (LP)left-handed circularly polarized (LHCP) |
| spellingShingle | Muhammad Noman Hattan Abutarboush Khurram K. Qureshi Adnan Zahid Farooq A. Tahir Muhammad Imran Qammer H. Abbasi Circular Dichroism and Cross Polarization Conversion Using Chiral Metasurface IEEE Open Journal of Antennas and Propagation Asymmetric transmission (AT) chiral metasurface (CM) circularly polarized (CP) dual-mode linearly polarized (LP) left-handed circularly polarized (LHCP) |
| title | Circular Dichroism and Cross Polarization Conversion Using Chiral Metasurface |
| title_full | Circular Dichroism and Cross Polarization Conversion Using Chiral Metasurface |
| title_fullStr | Circular Dichroism and Cross Polarization Conversion Using Chiral Metasurface |
| title_full_unstemmed | Circular Dichroism and Cross Polarization Conversion Using Chiral Metasurface |
| title_short | Circular Dichroism and Cross Polarization Conversion Using Chiral Metasurface |
| title_sort | circular dichroism and cross polarization conversion using chiral metasurface |
| topic | Asymmetric transmission (AT) chiral metasurface (CM) circularly polarized (CP) dual-mode linearly polarized (LP) left-handed circularly polarized (LHCP) |
| url | https://ieeexplore.ieee.org/document/10993380/ |
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