Near-Field-Focusing Quasi-Nondiffraction Airy Beam with Waveguide Slot Array Antenna

A near-field-focusing quasi-nondiffraction Airy beam with the waveguide slot array antenna is proposed in this paper. A two-dimensional (2-D) self-bending beam is generated, which combines the one-dimensional (1-D) Airy beam and the one-dimensional multi-point focusing non-diffraction beam. The simulation results present a large depth of field with the self-bending nondiffracting propagation. Interesting properties of self-healing and self-acceleration are achieved in this design, which shows great potential in the field of the wireless energy transfer and the near-field high-speed communication.