Fig. 1 | Schematics of the PA-PSO algorithm. (a) and (b) Working principle of the metalens antenna. (c) and (d) Comparison between the traditional PSO and PA-PSO algorithm. The red and blue stars ...

For this reason, fractal antennas are very compact, multiband or wideband and have useful applications in cellular telephone and microwave communications. In this paper, the authors will investigate ...