giorgi3092
Junior Member level 3
- Joined
- Jul 31, 2021
- Messages
- 25
- Helped
- 0
- Reputation
- 0
- Reaction score
- 0
- Trophy points
- 1
- Activity points
- 311
I am trying to measure the loss of this particular cable I have - HLL150-29P-29P-36
The cable is supposed to work until 40 GHz, but measuring it port 1 to port 2 on my VNA - PNA-X N5247A, I see extremely ripply behavior in S21.
It is strange because the datasheet has some S21 plots and S21 is contained better than -2.5 dB.
I am trying to figure out what I am doing wrong. I am attaching front panel jumper connections, is my setup correct? I am new to this VNA, so I might have set up something wrong.
There is nothing particular about the VNA setup. It's our normal DC-67 GHz setup. I am just feeding 0 dBm from port power and received power (B) is the same as S21 basically. So, what is going on? Why is my cable loss so bad?
The cable is supposed to work until 40 GHz, but measuring it port 1 to port 2 on my VNA - PNA-X N5247A, I see extremely ripply behavior in S21.
It is strange because the datasheet has some S21 plots and S21 is contained better than -2.5 dB.
I am trying to figure out what I am doing wrong. I am attaching front panel jumper connections, is my setup correct? I am new to this VNA, so I might have set up something wrong.
There is nothing particular about the VNA setup. It's our normal DC-67 GHz setup. I am just feeding 0 dBm from port power and received power (B) is the same as S21 basically. So, what is going on? Why is my cable loss so bad?