Fig.3&4: All broadband touchstone data are recorded over temperatures. Fig. 3 (d) (e) and (f) as well as Fig. 4 are derived from those broadband data.

Fig.5: All data are broadband touchstone files recorded by Pico VNA. For each folder, on means the hot air gun is heated up, and off means the hot air gun is switched off. 

Fig. 6 Folder pristine includes touchstone files recorded with temperature from a pristine temperature sensor; Folder includes touchstone files recorded with temperature from a recycled temperature sensor. The spreadsheet is the net mass for recycling liquid metal in the circular sensor.