>>12025597i'm the expert at this point. last hope was finding an antenna engineer. moreover, i hate when /sci/ is 100% nonsense, i want better threads.
thinking about it more, reciprocity says
where is the potential difference across the Rx antenna port. thus
this gives a magic equation that nature evaluates for us relating some electric volume current in the scene to the potential difference across the port. assuming the waves are weakly scattered (first Born approximation), the scene current is related to the Tx fields
transceivers/VNAs measure the S-parameters of a time-varying voltage, which are ratios between waves. this implies that fields are measured as S-parameters, so the physical fields are these S-parameters multiplied by the amplitude of the stimulating field
i thought i could carry this through to the end, but now i'm not so sure. i wonder if i should factor out an or a ? the former seems more natural, but the later is easier to cancel with the added complication of getting units to work out. Moreover, , and I don't know what this constant is or how to measure it. calibration doesn't seem to get rid of it either. fuck. i need to think more about this
