Extended Data Fig. 4: Evolution of the far-field radiation pattern of intrinsic AB-type topological beamformer with the stage number.
From: On-chip topological beamformer for multi-link terahertz 6G to XG wireless

a,b,c Measured and simulated azimuthal radiation patterns of the intrinsic AB-type two-, three-, and four-stage topological beamformers at the horizontal plane (polar angle ϕ = 0°) at 0.325 THz. d,e,f Measured 3D radiation patterns at 0.325 THz for the space θ > 0°. g,h,i Measured broadband radiation patterns. As the number of taper (radiating channel) increases from 22 to 24, the gain of the main lobe increases from 12 dBi to 16 dBi.