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Admin

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Everything posted by Admin

  1. Forget about PCB, it's not good...!!!
  2. ,,,no...!!!
  3. I think it's understandable, this...
  4. ,,,the antenna in the first figure has a wider frequency band...!!!
  5. I'm still trying to make some optimizations for this kind of antenna. ,,,and yet it can be done better by doubling the distance "w"...
  6. "I don't know exactly, it might exist on this site, but anyway I'll resume simulating this antenna...!!! Anyway, look here...
  7. ,,,read this...https://www.quora.com/How-do-I-make-my-WiFi-router-accept-all-kinds-of-SIM-cards-The-router-is-not-locked-to-any-carrier-but-it-only-accepts-only-data-SIMs-and-the-SIM-card-I-want-to-use-has-phoning-abilities-as-well-so-it-doesnt-accept
  8. ,,,you must not have any obstacles in front of the antenna...!!!!
  9. ,,,for what 100 meter distance,to create a wifi bridge= Direct visibility, Distance 2.5 km.
  10. Here's the problem, you have to keep this in mind....!!!
  11. ,,,and an improved version with elliptical patches... ,,,with wings...
  12. Yes, there are two versions of the cantena, a simple one and a combined one.
  13. Two long arms are connected in the shape of V to make a V-antenna. The two long arms are excited with 180˚ out of phase. As the length of these arms increases, the gain and directivity also increases. The following figure shows a V-antenna with the transmission line impedance z=200 Ohm and the lengh of the arm 0,8*lambda, making an angle Φm with the axis, which is called as apex angle.material-FR4 #1.5mm. The main advantage of a V-shaped antenna is its relatively small vertical radiation angle, which is especially important for establishing long-distance communications.
  14. ,,,it's also possible...with cantenna...
  15. Yes, that's about it...still needs work...!11
  16. Try this too ... 3.52-1ghz.cst
  17. ,,,see it...!!!
  18. ,,,you know how to work with cst-studio...???
  19. ,,,choose the tube with 6 mm diameter...!!!
  20. ,,,the material doesn't matter...the main thing is that it can be welded...!!! ,,,for your frequency range a smaller thickness is preferable...!! ,,,all the antenna elements are electrically connected...!!!
  21. YES,,,the second port is at 120 degrees...!!!
  22. ,,,not 45 degrees,120 degrees...!!!
  23. They don't really like Petra 9 I picked one out, I attach a photo report...
  24. Petra-9 MIMO 4x4 Unibox-2 is a 3G/4G antenna combined with a spacious sealed box (Unibox-2/Unibox-2L) in which you can place an LTE modem with support for MIMO 4x4 technology or two modems with support for MIMO 2x2 technology. The antenna is equipped with reliable connectors-SMA-male (50 ohms). Antenna adapters for connecting LTE modems are not included. The modem communicates with an indoor PC or router via a USB extension cable (USB 2.0). If the router is installed inside the box, the antenna can be equipped with a sealed PG-7 or RJ-45 pin (instead of a USB extension cable) Electrical characteristics of the PETRA-9 MIMO 4x4 UniBox-2 antenna Operating frequency range, MHz 1700÷2700 Gain factor, dBi 8,5÷10 Bottom width in the H-plane, deg 59÷82 Bottom width in the E-plane, deg 35÷57 Side lobe level, max -7 dB Decoupling between ports in the operating range, not less than 25 dB Input impedance, Ohms 50 SWR in the operating frequency range at the inputs, max. 1,5 Permissible power, W 10 Slope of polarization of received / emitted waves -45°/+45°(X-pol) Mechanical characteristics Weight of antenna, mount, box, extension cable g 1900 Bracing mast diameter 20-52 mm Operating temperature range -60°C to +80°C Overall dimensions without mounting, m 0, 24x0, 24x0, 1 Permissible wind speed, m / sec 25 Connectors 4 x SMA-male Material of the protective cover -Polycarbonate+ABS Antenna Material -Galvanized steel, brass Mounting material steel / Polycarbonate+ABS
  25. ,,,this is for you...(Why isn't you forget to see about Messages(up) 3300-3800 MHz BESTER.cst