Independent Control of Harmonic Amplitudes and Phases via a Time-Domain Digital Coding Metasurface
(A) Schematic of the time-domain-coding digital metamaterial and its control to EM spectra.
(B) The meta-atom of metamaterial.
(C) The 1-bit time coding sequence 01010101 … at 3.6GHz with the pulse duration τ = 1.6 μs.
(D) The measured spectral intensities of the harmonics under the 1-bit coding sequence.
(E) The 2-bit time coding sequence 00-01-10-11- … at 3.6GHz with the pulse duration τ = 1.6μs.
(F) The measured spectral intensities of the harmonics under the 2-bit coding sequence.