Antenna for transmitting partial orbital angular momentum beams

摘要

An antenna system can impart orbital angular momentum (OAM) to an incident electromagnetic (EM) signal from a feed antenna. The antenna system can include a partial OAM antenna with a reflective surface that has only part of a full OAM shaped surface. The antenna system can thus reflect the incident EM signal as a partial OAM beam rather than a full OAM beam.

主权项

1. An antenna system comprising:
a reflective antenna having a reflective face, a surface of the entire reflective face having a contour that corresponds to a contour of a portion of a geometric surface that is configured to impart a non-zero orbital angular momentum (OAM) to a transmission signal to generate a full OAM beam, the portion being less than the entire geometric surface such that the reflective face is configured to generate a partial OAM beam.