Ultrathin Complementary Metasurface for Orbital Angular Momentum Generation at Microwave Frequencies

  title={Ultrathin Complementary Metasurface for Orbital Angular Momentum Generation at Microwave Frequencies},
  author={Menglin L. N. Chen and Li Jun Jiang and Wei E. I. Sha},
  journal={IEEE Transactions on Antennas and Propagation},
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… 

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