Figure 3.
Experimental RL spectra, measured inside an anechoic chamber, for the addition of S (red), M (blue), and L (green) size distribution of (a) pure HF, (b) HF_Cu, and (c) HF_Mn powder. Left-side columns show the full spectrum between 2.5 and 17.5 GHz, while the right-side column provides an amplification close to the peaks.
