+ Post New Thread
Results 1 to 5 of 5
  1. #1
    Junior Member level 2
    Points: 1,850, Level: 9

    Join Date
    Jun 2006
    Posts
    24
    Helped
    1 / 1
    Points
    1,850
    Level
    9

    patch antenna simulation

    Dear All,

    I have tried to simulate a microstrip patch antenna. I got reasonable return loss and directivity. However, the simulated gain and radiation efficiency are not good. I think that the problem is from the way of modeling on the HFSS. I have attached the simulation file in the message. Can anyone tell me what is the problem of that model? Thanks.

    Best Regards,
    Mshafee

    •   Alt15th November 2008, 11:08

      advertising

        
       

  2. #2
    Junior Member level 1
    Points: 892, Level: 6

    Join Date
    Oct 2008
    Posts
    15
    Helped
    0 / 0
    Points
    892
    Level
    6

    antenna simulation

    am having the same problem!

    But i've read once that adding a relatively high permitivity material above the patch (superstrate) would solve the problem, for my design it enhanced the gain but it reduced the bandwidth :(

    Try it, maybe it will give better results with u!



    •   Alt16th November 2008, 05:22

      advertising

        
       

  3. #3
    Junior Member level 2
    Points: 1,850, Level: 9

    Join Date
    Jun 2006
    Posts
    24
    Helped
    1 / 1
    Points
    1,850
    Level
    9

    patchantenne simulation

    Dear eng.dreamer,

    Thanks for your reply. I did not get what you suggest. Do you mean to add a another material above the substrate instead of air? . Thanks.

    Best Regards,
    Mshafee



    •   Alt16th November 2008, 07:11

      advertising

        
       

  4. #4
    Newbie level 1
    Points: 731, Level: 5
    oj's Avatar
    Join Date
    Nov 2008
    Location
    Sweden
    Posts
    1
    Helped
    0 / 0
    Points
    731
    Level
    5

    patch antenne simulation

    Dear Mshafee
    I downloaded your design; but could not simulate it. It has some errors during the simulation. Can you chack the file you've attached?

    I have the Microstrip Patch Antenna design with different type of Excitation. I'm not expert in this field, but you may find somthing helpfull in it.

    Good Luck



  5. #5
    Member level 5
    Points: 1,209, Level: 7
    ahsaan's Avatar
    Join Date
    Apr 2009
    Location
    Pakistan
    Posts
    81
    Helped
    14 / 14
    Points
    1,209
    Level
    7

    Re: Patch antenna simulation problem

    hi
    u can get help from emtalk.com
    it has a very good tutorial on patch antenna



--[[ ]]--