mharoutu
Newbie level 3
Hello,
I have a Wiltron 37269A Vector Network Analyzer (w/ Time Domain capabilities).
The DUT is a cable that has one connector at each end (SMA typically) and can vary in length from a few inches to several feet. Typically we plot S11 (VSWR) and insertion loss (S21) over a certain frequency range (e.g., 0.4 to 6 GHz) and make sure the VSWR and loss are within a certain limit.
I'd like to be able to measure the impedance of these cable. For example, the characteristic impedance is 50 Ohms. I'd like to know if we stay within 50.0 +/-1.0 Ohms throughout the cable. Ideally, using the Time Domain I would be able to examine the impedance throughout the length of the cable and possibly identify any faults.
Any help would be greatly appreciated. My background is in Mechanical Engineering so my knowledge of RF/Microwave measurements is not great.
I have a Wiltron 37269A Vector Network Analyzer (w/ Time Domain capabilities).
The DUT is a cable that has one connector at each end (SMA typically) and can vary in length from a few inches to several feet. Typically we plot S11 (VSWR) and insertion loss (S21) over a certain frequency range (e.g., 0.4 to 6 GHz) and make sure the VSWR and loss are within a certain limit.
I'd like to be able to measure the impedance of these cable. For example, the characteristic impedance is 50 Ohms. I'd like to know if we stay within 50.0 +/-1.0 Ohms throughout the cable. Ideally, using the Time Domain I would be able to examine the impedance throughout the length of the cable and possibly identify any faults.
Any help would be greatly appreciated. My background is in Mechanical Engineering so my knowledge of RF/Microwave measurements is not great.