Generation of OAM beam by ring array and digital DDS upconvertor

A new configuration is proposed to generate an orbital angular momentum(OAM) beam of an arbitrary mode. The system is constituted of a ring antenna array and a digital DDS (Direct Digital Synthesis) amplitude and phase up-convertor control network. The experiment results show that the system has good performance on generating OAM beams of different modes.

[1]  Shilie Zheng,et al.  A Flat-Lensed Spiral Phase Plate Based on Phase-Shifting Surface for Generation of Millimeter-Wave OAM Beam , 2016, IEEE Antennas and Wireless Propagation Letters.

[2]  Xudong Bai,et al.  Design of a horn lens antenna for OAM generation , 2015, 2015 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting.

[3]  Kourosh Mahdjoubi,et al.  Generation of OAM waves with circular phase shifter and array of patch antennas , 2015 .

[4]  Xudong Bai,et al.  Perforated dielectric antenna reflectarray for OAM generation , 2015, 2015 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting.

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

[6]  Masood Ur Rehman,et al.  Generation of orbital angular momentum (OAM) radio beams with phased patch array , 2013, 2013 Loughborough Antennas & Propagation Conference (LAPC).