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  1. J

    Hel with feko simulation

    Help with feko simulation hi, i´m trying to simulate the folded patch antenna which is in attach. But i'm having 3+53j Ohms, so i'm not sure about what i'm doing wrong, i think could be maybe about the port! i have done a wire where i want to do the feed and then aplied a wire port on it...
  2. J

    Patch antenna simulation - Sonnet Software

    Great!! yes youre rigth i have seen that, because in the box where substrate came said that epsilon is 5, FR4, but i have seen in sonnet library 4.9 and another places 4.7. I think the best should be Duroid which have epsilon 2.2, and lower loss, at least is what i have seen that is more used...
  3. J

    Patch antenna simulation - Sonnet Software

    The comparision between the simulation results and practice results? are they similar?
  4. J

    Patch antenna simulation - Sonnet Software

    Yes that works! i'm having 109.3 - j37.42. Do you know the Sonnet eficiency?
  5. J

    Patch antenna simulation - Sonnet Software

    ok, i will see that chapter!! But theres's a big problem i'm using sonnet lite, so its limitated to 14MB. So i have to see how resolve this problem!! thanks a lot for your help :) best regards, jmga9
  6. J

    Patch antenna simulation - Sonnet Software

    Hi, thanks for your quick response. Yes i saw the examples, but I was in doubt about ground plane!! because i've done in practice this antenna and i had approximately 268 + j3,9, for ressonant frequency (2.42Ghz) so i was waiting have similar values with sonnet! since i´m not having i supose...
  7. J

    Patch antenna simulation - Sonnet Software

    Hi everyone, I´m trying to simulate a patch antenna, but i´m having problems because i dont know how to make the ground plane. I have done 3 dielectric layers: air, dielectric, air. But i´m not sure if this is the right way to do a finite ground plane! I will be really gratefull if anyone...
  8. J

    Finite Substrate using Feko

    Hi everyone, I'm simulating an microstrip antenna (attachment), with microstrip line feed, in feko software. First i simulated the antenna in a infinite substrate, but right now i'm trying to do it in a finite one. Its a substrate with dielectric constant = 5; height = 1.6mm. But i'm having...
  9. J

    edge ports for a finite substrate microstrip

    hi gamba007, í´m having the same proble about the feed in finite subtrates. Could you send me your example please? my email is jmga9@hotmail.com! Best regards, jmga9
  10. J

    Microstrip patch antenna

    thanks a lot for yours response!! :) Best regards, jmga9
  11. J

    Microstrip patch antenna

    Hi, i'm working with microstrip antenna and i use Txline sortware to determine the line dimension, but in the software i have to put the constant dielectric. My question is i have to put the constant dielectric or the effective? I hope anyone can help!!! Best regards, jmga9
  12. J

    help in feko lite with the mesh size

    hi e_m_c thanks a lot for your answer! I will try the software that you recommend me, and see what i can do, because i really need to use one. i have been trying to use Feko Lite but because of their limitations i'm having a lot of problems!!! Best regards, jmg9
  13. J

    Antennas Simulators help

    I would like a simulator for microstrip antennas! and i would like to have radiation pattern, current distribution, etc simulated. I worked with 4nec2 to simulate a panel antenna, but i'm not sure if i could the same with microstrip! Thanks for your help and will keep waiting for suggestions...
  14. J

    Antennas Simulators help

    Can you recommend me a free licencing software?
  15. J

    Antennas Simulators help

    Hi everyone, I wish someone advise me a antenna software simulation that was efficient and free! i have: - Mstrip40 - Feko lite - Sonnet lite - CST microwave studio - Zeland Have any one work with some of the list? what do you think? Thanks!! Best regards, Jmga9
  16. J

    help in feko lite with the mesh size

    Hi everyone, I would like to know the accuracy of the values obtained by the Feko lite Software, because i´m searching for a free simulation software! Thanks Best regards, jmga9 ---------- Post added at 10:23 ---------- Previous post was at 10:20 ---------- Hi everyone, I would like to...
  17. J

    ARRAY TO PHASED ARRAY ANTENNA!

    Hi, my e-mail is jmga9@hotmail.com Best Regards, jmga9
  18. J

    ARRAY TO PHASED ARRAY ANTENNA!

    hi everyone, I want to buil a 2.4Ghz phase shifter! because i'm making a project about beam control in an antenna array, i've been looking and cant find a good one! So if anyone could give any link or book that could help me i'll be very gratefull!!! Best regards, jmga9
  19. J

    microstrip patch antenna design

    Hi, i´m doing a microstrip antenna to operate in 2.42GHz. The substrate has: thickness: 1.6mm; Er=5. The dimensions are 27.2x54.4 mm. The input impedance is 281.25 ohms. My questions are: - I have to do a 50 ohm line, followed by a quater wavelength transformer and then the antenna? - And...
  20. J

    Advances in Microstrip and printed antennas

    Hi, i'm doing a square microstrip antenna, but i dont how to do the ground plane, i mean, i´m not sure if ground plane must have a specify size. Or must have the same size of the square! Thanks!! Best regards!!! Added after 37 minutes: the square dimensions are 27mm x 27mm and i used a...

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