Please use this identifier to cite or link to this item: http://localhost/handle/Hannan/234446
Title: A Bandpass Graphene Frequency Selective Surface With Tunable Polarization Rotation for THz Applications
Authors: Xiang Li;Lin Lin;Lin-Sheng Wu;Wen-Yan Yin;Jun-Fa Mao
Year: 2017
Publisher: IEEE
Abstract: In order to achieve tunable polarization rotation of the transmitted wave and controllable bandpass response simultaneously, a new graphene frequency selective surface (GFSS) is proposed for terahertz applications. The GFSS is built up by sandwiching a high-resistivity Si-substrate with a graphene patch array and a graphene sheet, both of which are electromagnetically biased. The configuration is analyzed by using an equivalent tensorial surface conductivity and transmission matrices of graphene structures, which is validated by full-wave simulations. The transmission coefficient, axial ratio, and polarization rotation angle of the bandpass GFSS are captured. An observable polarization rotation angle is obtained with a relatively large transmittance, which is superior to the graphene sheet and bandstop patch-type structures. The passband frequency is found to be not sensitive to the incident angle for either TE- or TM-polarized incidence, while it can be shifted from 1.6 to 2.2 THz with the polarization rotation angle varying from 24&x00B0; to 16&x00B0; by changing the chemical potential from 0.6 to 1 eV. When the applied magnetic field is set up to 3 T, the maximum rotation angle of polarization reaches up to 30&x00B0; for TM incidence and 45&x00B0; for TE incidence while the passband remains around 2 THz.
URI: http://localhost/handle/Hannan/234446
volume: 65
issue: 2
More Information: 662,
672
Appears in Collections:2017

Files in This Item:
File SizeFormat 
7762098.pdf3.71 MBAdobe PDF
Title: A Bandpass Graphene Frequency Selective Surface With Tunable Polarization Rotation for THz Applications
Authors: Xiang Li;Lin Lin;Lin-Sheng Wu;Wen-Yan Yin;Jun-Fa Mao
Year: 2017
Publisher: IEEE
Abstract: In order to achieve tunable polarization rotation of the transmitted wave and controllable bandpass response simultaneously, a new graphene frequency selective surface (GFSS) is proposed for terahertz applications. The GFSS is built up by sandwiching a high-resistivity Si-substrate with a graphene patch array and a graphene sheet, both of which are electromagnetically biased. The configuration is analyzed by using an equivalent tensorial surface conductivity and transmission matrices of graphene structures, which is validated by full-wave simulations. The transmission coefficient, axial ratio, and polarization rotation angle of the bandpass GFSS are captured. An observable polarization rotation angle is obtained with a relatively large transmittance, which is superior to the graphene sheet and bandstop patch-type structures. The passband frequency is found to be not sensitive to the incident angle for either TE- or TM-polarized incidence, while it can be shifted from 1.6 to 2.2 THz with the polarization rotation angle varying from 24&x00B0; to 16&x00B0; by changing the chemical potential from 0.6 to 1 eV. When the applied magnetic field is set up to 3 T, the maximum rotation angle of polarization reaches up to 30&x00B0; for TM incidence and 45&x00B0; for TE incidence while the passband remains around 2 THz.
URI: http://localhost/handle/Hannan/234446
volume: 65
issue: 2
More Information: 662,
672
Appears in Collections:2017

Files in This Item:
File SizeFormat 
7762098.pdf3.71 MBAdobe PDF
Title: A Bandpass Graphene Frequency Selective Surface With Tunable Polarization Rotation for THz Applications
Authors: Xiang Li;Lin Lin;Lin-Sheng Wu;Wen-Yan Yin;Jun-Fa Mao
Year: 2017
Publisher: IEEE
Abstract: In order to achieve tunable polarization rotation of the transmitted wave and controllable bandpass response simultaneously, a new graphene frequency selective surface (GFSS) is proposed for terahertz applications. The GFSS is built up by sandwiching a high-resistivity Si-substrate with a graphene patch array and a graphene sheet, both of which are electromagnetically biased. The configuration is analyzed by using an equivalent tensorial surface conductivity and transmission matrices of graphene structures, which is validated by full-wave simulations. The transmission coefficient, axial ratio, and polarization rotation angle of the bandpass GFSS are captured. An observable polarization rotation angle is obtained with a relatively large transmittance, which is superior to the graphene sheet and bandstop patch-type structures. The passband frequency is found to be not sensitive to the incident angle for either TE- or TM-polarized incidence, while it can be shifted from 1.6 to 2.2 THz with the polarization rotation angle varying from 24&x00B0; to 16&x00B0; by changing the chemical potential from 0.6 to 1 eV. When the applied magnetic field is set up to 3 T, the maximum rotation angle of polarization reaches up to 30&x00B0; for TM incidence and 45&x00B0; for TE incidence while the passband remains around 2 THz.
URI: http://localhost/handle/Hannan/234446
volume: 65
issue: 2
More Information: 662,
672
Appears in Collections:2017

Files in This Item:
File SizeFormat 
7762098.pdf3.71 MBAdobe PDF