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Hamza

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Everything posted by Hamza

  1. The velocity facter is introduced in kamda/4 ????;;
  2. https://onlinelibrary.wiley.com/doi/full/10.1002/mmce.22037 here you can find new biquad higher gain and wider band
  3. yagi

    i think none speaks about the thickness of feed ?? its so important for the impedance ?!!!! any idea ?
  4. Thanks jomy j'ai tout compris
  5. thanks jomy .how could i pass the coax cable ?
  6. It's dielectric support or metallic support?
  7. It's true this antenna could cover 800 to 2700 ?
  8. silicne is so week and cannot resist to hot temperature it will melt and lose its lenght..... i willing to make strong antenna
  9. I think Rg 59 it's available for now 51mm balun
  10. I had read that lambda/4 bazouka balun it's possible too ( 31 mm ) and if I use strong thick support (isolater ) fixed with screw and adjustable distance ? It's miss the performance?;
  11. Thanks clanon....what if I use lambda /4 balun it's easy and make the antenna more solid ( stronger ). Becuz this antenna looks so fragile and. I m asking if I have to shorten the coax cable to reflecter if I make 4:1 balun ?
  12. https://www.qsl.net/yu1aw/ANT_VHF/Amos_Ant/InvAmosArray.pdf
  13. in other sites antenna array inverted amos 5 A is different 33mm??!
  14. So no need to shorten the coax to the reflecter with this balun?
  15. Thank you sir .merci
  16. Wich type of balun for this antenna!?
  17. hi teacher jomy please give me the mesurement of patch ellip antenna with conical reflector it looks interessting .
  18. Hi I need Yagi antenna for 2.4 GHz 16 DBI with dipole details.
  19. Thanks admin ...expert teacher
  20. The patch disk is easier to build .. I want the measurements of this antenna jomy
  21. Looks nice .. so it works for LTE 1800 ? And the patch connected or isolated from the reflecter?
  22. Hi admin the measurements of such antenna for 2.4 GH and what's the estimated gain ..