Ultrathin Complementary Metasurface For Orbital Angular Momentum Generation At Microwave Frequencies
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.
Recommended Citation
M. L. Chen et al., "Ultrathin Complementary Metasurface For Orbital Angular Momentum Generation At Microwave Frequencies," IEEE Transactions on Antennas and Propagation, vol. 65, no. 1, pp. 396 - 400, article no. 7738509, Institute of Electrical and Electronics Engineers, Jan 2017.
The definitive version is available at https://doi.org/10.1109/TAP.2016.2626722
Department(s)
Electrical and Computer Engineering
Keywords and Phrases
Babinet's principle; circuit theory; equivalence principle; orbital angular momentum (OAM); ultrathin complementary metasurface
International Standard Serial Number (ISSN)
0018-926X
Document Type
Article - Journal
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2024 Institute of Electrical and Electronics Engineers, All rights reserved.
Publication Date
01 Jan 2017
