Please use this identifier to cite or link to this item: http://localhost/handle/Hannan/233145
Title: Ultrathin Complementary Metasurface for Orbital Angular Momentum Generation at Microwave Frequencies
Authors: Menglin L. N. Chen;Li Jun Jiang;Wei E. I. Sha
Year: 2017
Publisher: IEEE
Abstract: Electromagnetic (EM) waves with helical wave front carry orbital angular momentum (OAM), which is associated with the azimuthal phase of the complex electric field. OAM is a new degree of freedom in EM waves and is promising for channel multiplexing in the communication system. Although the OAM-carrying EM wave attracts more and more attention, the method of OAM generation at microwave frequencies still faces challenges, such as efficiency and simulation time. In this communication, by using the circuit theory and equivalence principle, we build two simplified models, one for a single scatter and one for the whole metasurface to predict their EM responses. Both of the models significantly simplify the design procedure and reduce the simulation time. In this communication, we propose an ultrathin complementary metasurface that converts a left-handed (right-handed) circularly polarized plane wave without OAM to a right-handed (left-handed) circularly polarized wave with OAM of arbitrary orders, and a high transmission efficiency can be achieved.
URI: http://localhost/handle/Hannan/233145
volume: 65
issue: 1
More Information: 396,
400
Appears in Collections:2017

Files in This Item:
File SizeFormat 
7738509.pdf1.17 MBAdobe PDF
Title: Ultrathin Complementary Metasurface for Orbital Angular Momentum Generation at Microwave Frequencies
Authors: Menglin L. N. Chen;Li Jun Jiang;Wei E. I. Sha
Year: 2017
Publisher: IEEE
Abstract: Electromagnetic (EM) waves with helical wave front carry orbital angular momentum (OAM), which is associated with the azimuthal phase of the complex electric field. OAM is a new degree of freedom in EM waves and is promising for channel multiplexing in the communication system. Although the OAM-carrying EM wave attracts more and more attention, the method of OAM generation at microwave frequencies still faces challenges, such as efficiency and simulation time. In this communication, by using the circuit theory and equivalence principle, we build two simplified models, one for a single scatter and one for the whole metasurface to predict their EM responses. Both of the models significantly simplify the design procedure and reduce the simulation time. In this communication, we propose an ultrathin complementary metasurface that converts a left-handed (right-handed) circularly polarized plane wave without OAM to a right-handed (left-handed) circularly polarized wave with OAM of arbitrary orders, and a high transmission efficiency can be achieved.
URI: http://localhost/handle/Hannan/233145
volume: 65
issue: 1
More Information: 396,
400
Appears in Collections:2017

Files in This Item:
File SizeFormat 
7738509.pdf1.17 MBAdobe PDF
Title: Ultrathin Complementary Metasurface for Orbital Angular Momentum Generation at Microwave Frequencies
Authors: Menglin L. N. Chen;Li Jun Jiang;Wei E. I. Sha
Year: 2017
Publisher: IEEE
Abstract: Electromagnetic (EM) waves with helical wave front carry orbital angular momentum (OAM), which is associated with the azimuthal phase of the complex electric field. OAM is a new degree of freedom in EM waves and is promising for channel multiplexing in the communication system. Although the OAM-carrying EM wave attracts more and more attention, the method of OAM generation at microwave frequencies still faces challenges, such as efficiency and simulation time. In this communication, by using the circuit theory and equivalence principle, we build two simplified models, one for a single scatter and one for the whole metasurface to predict their EM responses. Both of the models significantly simplify the design procedure and reduce the simulation time. In this communication, we propose an ultrathin complementary metasurface that converts a left-handed (right-handed) circularly polarized plane wave without OAM to a right-handed (left-handed) circularly polarized wave with OAM of arbitrary orders, and a high transmission efficiency can be achieved.
URI: http://localhost/handle/Hannan/233145
volume: 65
issue: 1
More Information: 396,
400
Appears in Collections:2017

Files in This Item:
File SizeFormat 
7738509.pdf1.17 MBAdobe PDF