Hi everyone! The equation above is given in Handbook of Microwave Component Measurements with Advanced VNA Technique.
Does b2A_MatchCor_1-Port equal to the output signal of the DUT when a 50 ohms resistance is connected at DUT’s output port? Or it equals to the output signal of DUT when DUT’s output port is connected to the Port 2 of VNA?
If it is the first case, the S21A can be calculated by b2A/a1A. But If it is the second case, we can not simply calculate S21A by b2A/a1A.
So I feel very confusing.
Any advice are very appreciate!