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Admin

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Everything posted by Admin

  1. ,,,how to see current distribution from cst...?? When looking at the surface current monitor you first of all should choose one of the given results for example the "Abs".There you can choose a view thats called contour. It shows you a result like in your attechment. If you want to see the distribution in a special plane, you have to do a right-click and then choose 3D Fields on 2D Plane. Then choose the Plane you want to see.
  2. "well, but see that the antenna output impedance is not good...!!! "cst, I'm using
  3. I think this is a pretty common thing to do. Lots of point to point wifi links use dual polarisation antennas. In fact it can actually be the same antenna so long as it has good isolation between the ports.This antenna does not have this... S12, S21 must be> 30 Be careful, port to port isolation is not the same as polarization isolation. Polarization isolation is a useful technique when you want to transit two simultaneous signals and both can exist. It is like transmitting on vertical and horizontally polarized antennas. If you are transmitting through a Wilkinson to two antennas (one RHCP and the other LHCP) you could be in for some interesting effects. The resulting polarization will depend on the rotational orientation of each antenna and any additional phase difference in the feed lines. You will end up with some elliptical polarization with the axial ratio and major axis probably in an unexpected direction. Sorting out what you have will be fun. THE BEST IS THAT...
  4. A new patch format...for broadband
  5. ...with coax phasing lines...!!!!
  6. An antenna array in which two or more dipoles are stacked one above the other to obtain greater directivity...
  7. This antenna does not have the correct dimensions for the subscribed frequency...
  8. what do you say it is ...?
  9. ,,, wrong, look better ...! ...for what is "pin"?
  10. This antenna does not have a wide bandwidth(3----5GHz) with no circular polarization and has to work on the impedance... ,,,here is the * cst file for the antenna and SMA gheit2.cst SMA mic.cst
  11. It's almost perfect !!!
  12. and what is the impedance of the antenna output? and VSWR..?
  13. "I think with your project there are some problems....
  14. ,,, welcome to this forum, buddy ...!!!! ,,,for... "how to plot the axial ration VS frequency in CST...?" see this...
  15. That's different, BackFire Antenna with dipole...!!! it would be time to close this topic...!!!
  16. ,,how much it is...?/
  17. ,,, but that's for 5ghz, 24dbi, diameter = 440mm
  18. ,,,not "TDJ Parabolic Antenna",this it"s te best patch-yagi antena on the offset parabola...
  19. ,,,show more about this ....!!!
  20. ,,,my UFO-Dracula2...
  21. "old things",junk
  22. But this it"s another" fish food "....!!!!
  23. What's that stupid question?