Continue to Site

Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

Register Log in

Recent content by isla4018

  1. I

    Insertion loss 0 db and return loss negative dB in low freq

    Thank you so much for all of your reply. I got the result for both measurement and simulation. The DUT is a two layer (Bottom and top) PCB board with FR4 dielectric (Just like Capacitor). The two layers are connected through two vias. There is no traces. For your convenience, I have attached...
  2. I

    Insertion loss 0 db and return loss negative dB in low freq

    Hello, I simulated a four port board which is 0-5 GHz range. I compared my simulation result with the measurement. I got insertion loss (S21) is 0 dB and return loss (S11) is a very large negative dB value at low frequency (0 Hz). I found this is the characteristics of S21 and S11. But I do not...
  3. I

    Solution Frequency and Delta S in Ansys HFSS

    Thank you so much! :)
  4. I

    Insertion loss 0 db and return loss negative dB in low freq

    Hello everyone, Why insertion loss is 0 dB and return loss is a very large negative dB value at low frequency ? I found an explanation in Eric Bogatin's book, but could not get the explanation. Someone please explain this? Thanks!
  5. I

    Solution Frequency and Delta S in Ansys HFSS

    Hello all, I have few questions regarding S parameter simulation in Ansys HFSS. 1. What is solution frequency in Ansys HFSS? 2. If I choose to simulate S parameters in 0-5 GHz frequency range, then what will be my solution frequency and how can I determine that? 3. What is maximum delta...
  6. I

    Measurement and simulation in high frequency

    Hi, I have simulated S parameters of a PCB board from 0-10 GHz in Ansys HFSS 13. The measurement data is agreeable with the simulation data up to 2 GHz. But after 2 GHz, measurement and simulation data are not that much close. I am assuming my simulation is correct. So can anyone please...
  7. I

    Measurement and simulation in high frequency

    Hi, I have simulated S parameters of a PCB board from 0-10 GHz. The measurement data is agreeable with the simulation data up to 2 GHz. But after 2 GHz, measurement and simulation data are not that much close. I am assuming my simulation is correct. So can anyone please answer why the higher...
  8. I

    HFSS conductor problem in the port

    No conductors were found on port '2', so auto assignment of conductors on that port cannot proceed. How to solve it? Thanks!
  9. I

    Plot graph for impedance parameters

    Hello, I have a touchstone file (s4p). Now I want to plot graph for z parameters. I tried to follow the example of **broken link removed** . But the program is showing error. Can anyone please help me with this? Thanks!
  10. I

    linear sweep vs log sweep in Ansys HFSS

    Hello everyone, I am modeling a PDN in ansys HFSS. I am a new user of Ansys. So I am confused with the sweep frequency. To compare the simulated S parameters with the measured one, do I need to select linear count sweep or log sweep frequency? Thank you!
  11. I

    S parameters to Z parameters using Matlab

    Hello everyone, I have a S4p file (4 ports S parameters file). Now how can I convert those S parameters into Z parameters using Matlab? Thanks in advance!
See more

Part and Inventory Search

Back
Top