Experimental radar data for monitoring brain-atrophy progression

These files contain all S-parameter measurements from lamb brain phantoms that are used to mimic whole-brain atrophy.
The data files in this folder contain the frequency-domain S-parameters before any reference-scan subtraction has been performed. Two-port VNA is used where two antennas operate at one time. Each excel sheet contains data for two antennas. The data include the frequency (GHz), magnitude, and Phase (Degree) for S11, S21, S12, and S22. The name of the sheet reflects which antennas combinations are used for example the very first sheet "Normal1and4" means Normal (healthy) brain phantom and antenna 1 and antenna 4 and so on.