Fig. 1: Generation and features of Airy beams. | Nature Communications

Fig. 1: Generation and features of Airy beams.

From: A physics-informed Airy beam learning framework for blockage avoidance in sub-terahertz wireless networks

Fig. 1

a A self-healing finite-energy Airy beam can be generated by applying an electric field described by a scaled Airy function at the transmitting aperture, along with a truncation factor. The radiation pattern is calculated by the theoretical closed-form Airy beam propagation equation with \(\alpha\) = 0.05. Here, we set \({x}_{o}\) = 2.5 mm at 120 GHz. b A desired arbitrary Airy beam can be generated at a specified distance and orientation using Fourier optics. A cubic phase and a focusing phase mask are superpositioned at the transmitting aperture to create an Airy profile at the marked plane, from which onward the Airy beam propagates. The red dashed line shows where the Airy propagation starts. Here, we set \(B=7,{F}=0.1{m},\,\theta=-{20}^{\circ }\) at 120 GHz. c There exists an infinite number of feasible Airy trajectories that can be configured between the transmitter to the receiver. Here, we show 3 examples of such beams. d The received power of the 3 example beam configurations with and without the blocker.

Back to article page