yefj's latest activity

Hello, I have simulated a situation where we have 3 differential lines as shown below. port 1 has no termination so he has to affter...

Hello, I have tried to implement an open circuit microstrip resonator . I got the microstrip resonating at 5Ghz as shown below. However...

Hello BalunCore 'The impedance is the impedance of the line.the material i think has the same er but different quality.the line...

Hello Baluncore,I know that as the los in bigger then tdr slope is larger. all material TDR is plotted together and loss per inch plot...

Hello ,As you can see in the plot bellow I have made several TDR of different materials on one plot. I need to deside which is the best...

Hello, the following photo represent TDR of differential straight line SDD11.my line is 8 inch BW is 67GHz. Two questions: 1. I know...

Longer lines have lower frequencies, so they do more turns around the Smith chart per GHz.

Yes I will read that . regarding the other question could you please explain why longer lines creates steaper phase slopes in S21?

Maybe it is time for you to study odd and even mode couplers. The pdf is safe...

Hello Baluncore,regarding the S21 phase below. Few questions: 1.why the slope gets steeper when the line goes longer? 2.Is there a way I...

Hello Baluncore, In every S21 resonant notch I have a small jump in S21 phase. I tried to convert the slope of this little phase jump...

Hello Baluncore, As you can see below we have er=4.1 and ground plane. At 3.08Ghz we have half wavelength resonance.according to this...

Hello , I have a line geting closer to the line connected to the ports. as the distancebetween them gets closer the S21 notches get...

In differential port 1 we have same power going threw 1 SE and 3 SE. we get the ouput at 2 SE and 4 SE. suppose 2SE is faulty.What...

Hello , I have two PCB presented in the photo. The difference between them is the length of the inner line. I have extracted the s2p of...