yuhohang
Junior Member level 3

Dear All
I want to find out the differental port impedance by the following method, please anyone give me the comment.
1. Use the battery to power on the circuit
2. Isolate the ground bewteen of the circuit and the network analyzer
3. Connect the "Port 1" of the network analyzer the either one of the differental port.
4. The other one differental port connect to the network analyzer ground of the "Port 1".
Is it the S11 could be equal to the differental port impedance?
I want to find out the differental port impedance by the following method, please anyone give me the comment.
1. Use the battery to power on the circuit
2. Isolate the ground bewteen of the circuit and the network analyzer
3. Connect the "Port 1" of the network analyzer the either one of the differental port.
4. The other one differental port connect to the network analyzer ground of the "Port 1".
Is it the S11 could be equal to the differental port impedance?