I’m trying to do range bias correction by making my own “RSL vs bias” table similar to application note APS011. However I’m not sure about what my antenna gain is in using Friis’ formula.
According to DWM1001 datasheet, table 11, it seems that if I position two modules parallel with each other, then the antenna gain is almost the same in every direction (dark blue curve). Even though this is the case, the gain still depends on angle of arrival, which I do not have access to when running real experiment.
Should I just go with a constant value like 0 or -1 or -2 for antenna gain in Friis’ formula just because it’s close enough? Or am I looking at the wrong place?