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Recent content by vishwanivi

  1. V

    how to improve the gain of antenna?

    I cant understand your words..............
  2. V

    how to improve the gain of antenna?

    Thank you for ur reply.......... I used FR-4 as a substrate material which has the loss tangent value of 0.02. The height of the substrate is 1.6mm.
  3. V

    how to improve the gain of antenna?

    hai, I designed a mimo antenna in HFSS v 13. In that, i reached a very good return loss and VSWR. Where as the gain of my antenna is 2dB and the directivity is about 5dB. Since the directivity is high when compared with gain, the efficiency of my antenna gets very low. Kindly, give some tips...
  4. V

    how to read gain in polar plot (hfss v13)?

    Hi, i create a topic for this link: https://www.edaboard.com/threads/272878/#post1170160 thank u
  5. V

    how to analysis gain ?

    I did MIMO antenna .I got -20 return loss.My doubt is in MIMO antennas how much isloation is needed? and also how to calculate isloation between the antenna?and i attached the gain plot how to analysis this plot?
  6. V

    how to read gain in polar plot (hfss v13)?

    I did MIMO antenna .I got -20 return loss.My doubt is in MIMO antennas how much isloation is needed? and also how to calculate isloation between the antenna?and i attached the gain plot how to analysis this plot?
  7. V

    what is the relation between substrate size and patch size for good simulation?

    In the hfss design MIMO antenna how to do mathematical analysis? please anybody help me?
  8. V

    Excitation problem in hfss

    I am doing in my final year project is mimo antenna in hfss13.but i dont know how to calculate antenna parameters mathematically can anybody help me. Thank u
  9. V

    hi i need a two rectangular pacth antennas on a single substarte with coaxial feed

    hi i am doing my project in mimo 13.i ll try to reduce the isloation.but i dont know v have to maintain isloation in which level? can u possible to send details about isloation ?

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