Fig. 5: The beam scanning experimental results for N ranging from 1 to 8.

a The broadband beam scanning from 97.5 GHz to 107.5 GHz, covering angles from 0° to ±60°. b The actual gain (blue curve) and simulated gain (red curve) results at various angles at 100 GHz. c The 1D amplitude results at different angles at 100 GHz. d The maximum gain of the main beam at different angles