Horn Antenna Generating Electromagnetic Field with Orbital Angular Momentum

A novel method for generating electromagnetic field with orbital angular momentum (OAM) and correspondingly a practical design based on conical horn antenna are proposed in this paper. The OAM modes of ±m for r/φ field components and ±(m − 1) for x/y ones can be generated by superposing the two orthogonal polarization degenerate TEmn modes in circular waveguide through a mode-transformation section, and then radiated from the horn in the far end. The effectiveness of the proposed method is analyzed from physical mechanisms and demonstrated by both simulation and experiment for the presented new-typed OAM horn antenna.

[1]  John Henry Poynting,et al.  The wave motion of a revolving shaft, and a suggestion as to the angular momentum in a beam of circularly polarised light , 1909 .

[2]  H. Then,et al.  Utilization of photon orbital angular momentum in the low-frequency radio domain. , 2007, Physical review letters.

[3]  Single patch antenna generating electromagnetic field with orbital angular momentum , 2013, 2013 IEEE Antennas and Propagation Society International Symposium (APSURSI).

[4]  S. Barnett,et al.  Free-space information transfer using light beams carrying orbital angular momentum. , 2004, Optics express.

[5]  Method to generate electromagnetic field with orbital angular momentum in circular waveguide , 2016, 2016 IEEE International Symposium on Antennas and Propagation (APSURSI).

[6]  Kourosh Mahdjoubi,et al.  Horn antennas for generating radio waves bearing orbital angular momentum by using spiral phase plate , 2016 .

[7]  K. Mahdjoubi,et al.  Flat plate for OAM generation in the millimeter band , 2013, 2013 7th European Conference on Antennas and Propagation (EuCAP).

[8]  Alessandro Toscano,et al.  Circular Polarized Patch Antenna Generating Orbital Angular Momentum , 2014 .

[9]  K. Forozesh,et al.  Orbital Angular Momentum in Radio—A System Study , 2010, IEEE Transactions on Antennas and Propagation.

[10]  Yuqing Yuan,et al.  UCA-based orbital angular momentum radio beam generation and reception under different array configurations , 2014, 2014 Sixth International Conference on Wireless Communications and Signal Processing (WCSP).

[11]  B. Thid'e,et al.  Encoding many channels on the same frequency through radio vorticity: first experimental test , 2011, 1107.2348.

[12]  Christophe Caloz,et al.  Vortex beam generation using circular leaky-wave antenna , 2014, 2014 IEEE Antennas and Propagation Society International Symposium (APSURSI).

[13]  Ben Allen,et al.  Experimental circular phased array for generating OAM radio beams , 2014 .

[14]  A. Tennant,et al.  Generation of OAM radio waves using circular time-switched array antenna , 2012 .

[15]  F. Tamburini,et al.  Experimental verification of photon angular momentum and vorticity with radio techniques , 2011 .