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Admin

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Everything posted by Admin

  1. I did this simulation today and I did not have time to optimize something ... !!! to me that looks,,,!!!!
  2. your CST file I can not open ?! My *cst file,,,!!! E-Patch.cst
  3. ,,,create another type of material (polystyrene) in CST material library, with er=1,2 and load it...!!!
  4. what kind of material?
  5. what kind of dielectric spacer did you choose? with what dielectric constant(relative permittivity)? the best is polystyrene,,,!!!
  6. "There are two pieces of each one for the 1720MHz frequency and the other for the 1840MHz frequency
  7. This is what you want?
  8. ok Erkin, but I saw you know how to work in autocad, it's simple, it's just rectangles patches ... !!!
  9. «Хорошо, но эти размеры для моей антенны очень хорошо подходят, 1780-1870 МГц VSWR <1.2
  10. I think that the other 3+3 patches are glued to the screen with insulated spacers
  11. More recently, this has now appeared
  12. no, I do not have this ... but for you I do anything .. !!!
  13. Erkin, this antenna is quite complicated in terms of impedance adjustment lines. Regarding the recommendation, I think the patch antenna with adaptive lines from the wire is easier to execute
  14. Another type of 1280MHz patch antenna And this represents an improvement of the antenna This antenna has a wider bandwidth
  15. I am wanting to make a CP patch antenna for 1.3GHz, but am struggling to find a design with dimensions online. I did a simulation of this antenna but with an elliptical cut in the patch, which provides a wider bandwidth and for the 2.4GHz frequency
  16. Biquad antenna in the air with parasitic director-it is necessary a laser cutting of the vibrator element (biquad patch)
  17. ,,,biquad on PCB with parasitic director
  18. ,,,thanks buddy, but it must to know that the antenna is big enough and can not adapt to a parabolic reflector,,,!!! It has a diameter of about 258mm
  19. In the model not included * box construction for a balun, in which the waveguides are almost in contact with the body or charge of the balun/LNA. Even if galvanic contact there is very small gap to the land-side of the Micarta or the metal casing of the LNA. The cable itself is also making an impact on the line impedance, and the cable is asymmetrical to waveguide, their impedance will change, will be unequal, and they will additionally radiate from assymetrical.
  20. Mehdi22 Welcome to this forum! Try to view this post
  21. A sector type antenna with bester-patches
  22. This is a simulation with the original adaptation lines