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Admin

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Everything posted by Admin

  1. The dual polarized microstrip antenna was design to generate signals with +45 and -45 polarized but with a loss in directivity gain of about 3dBi This antenna is more interesting with symmetrical excitation at a resonant frequency
  2. DELTA antenna, another kind of miniature antenna on PCB for 5.8GHz Anyway it's sub-miniature, about 30x30mm And here are the CSTfile thickness FR4 = 1mm DELTA 5,8GHz.cst
  3. DELTA antenna, another kind of miniature antenna on PCB for 5.8GHz
  4. This is a 1.2GHz antenna version with pseudo-elliptical polarization
  5. ,,,a simple sloted patch antenna for 5,8MHz dimensions = 4,5x45x45mm constructive details on feed point,use this type of connector
  6. I think this type of antenna is better Double plated PCB
  7. I am going to try to do a simulation, it might be that the ellipse has other dimensions for this antenna What thickness of PCB did you choose?
  8. for 1.3GHz it is recommended to use elliptical cut
  9. "And these are the latest results
  10. For this, I have to resume the simulation, this project is old for a few years
  11. You could say it's a new form of the antenna gain in a reasonable direction ...
  12. then multiplies the dimensions of the image with k = 1,0345 for the frequency of 5,8ghz
  13. But biquad2.igs file is for 1.5mm FR4 thickness,,,,!!!!!
  14. Ant_kid, are you interested in antennas for drones?
  15. ... yes. can adjust the impedance or something like that,,,,
  16. the uplink and dowlink it should be roughly the same...
  17. which antenna?
  18. What dimensions did you use for FR4 thick 1mm ,,, ??? I have not posted such dimensions....!!!
  19. ,,,if CP is Circular Polarisation,,,,YES...!!!!
  20. ,,, for 1200MHz,don"t you think that the antenna is too big, about 4,8 times...???
  21. ,,,and here is a patch-yagi antenna made only from tin cans....