Use of tractroid factor in deformed parabolic reflector antenna which transfers orbital angular momentum modes

The orbital angular momentum modes increase the system capacity and the spectral efficiency when multiplexing technology in microwave and optic communication systems is used. Despite its effectiveness, OAM for wireless communications has problems due to its divergence characteristics. In this paper an orbital angular momentum beam by the microwave antenna was presented as a pseudo-bessel mode which is provided with a tractroidal helicoid wavefront.