Fig. 7
From: Edge machine learning over IoT for chipless RFID environmental sensing in smart agriculture


(a) Simulated RCS magnitude of the chipless RFID tag at individual temperatures (0 °C, 30 °C, 60 °C, 90 °C), (b) Overlay of RCS spectra showing cumulative resonance shifts across all temperature levels, (c) Zoomed-in view at Res1 highlighting its frequency sensitivity to temperature.