Hi,

I am trying to create a new calibration kit for the PNA 8363B. I have many questions on this, but my primary question is:

What sets the reference plane in a LRL calibration, the Reflect transversial plane or the thru. From what I understand the thru sets your time delay plane, the line sets your characteristic impedance and the open sets your measurement plane. Is this correct?

Please help on this.

Dan G.

I am trying to create a new calibration kit for the PNA 8363B. I have many questions on this, but my primary question is:

What sets the reference plane in a LRL calibration, the Reflect transversial plane or the thru. From what I understand the thru sets your time delay plane, the line sets your characteristic impedance and the open sets your measurement plane. Is this correct?

Please help on this.

Dan G.

Check out this discussion first: Test fixture calibration with 8363A

You have a choice of Thru or Reflect to set the ref. plane. The impedance is set by the line. (Personally, I wouldn't set my ref. plane with the open. It's typically easier to model the line more accurately than the open due to fringing capacitance and radiation).