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Admin

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  1. ,,,and an improved version with elliptical patches... ,,,with wings...
  2. Yes, there are two versions of the cantena, a simple one and a combined one.
  3. 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.
  4. ,,,it's also possible...with cantenna...
  5. Yes, that's about it...still needs work...!11
  6. Try this too ... 3.52-1ghz.cst
  7. ,,,see it...!!!
  8. ,,,you know how to work with cst-studio...???
  9. ,,,choose the tube with 6 mm diameter...!!!
  10. ,,,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...!!!
  11. YES,,,the second port is at 120 degrees...!!!
  12. ,,,not 45 degrees,120 degrees...!!!
  13. They don't really like Petra 9 I picked one out, I attach a photo report...
  14. 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
  15. ,,,this is for you...(Why isn't you forget to see about Messages(up) 3300-3800 MHz BESTER.cst
  16. I will design you such an antenna for the desired frequency....!!!
  17. I think I'll make you a good antenna for the desired frequency."
  18. ChatGPT or DeepSeek will never be able to solve your problems in a real way...it's fake"
  19. papagayor...see this ",,,such an antenna can be calculated for the 3300-3800 MHz band"
  20. The antenna is used to connect to a repeater (amplifier) and is designed to amplify the GSM, 3G, LTE signal in offices, residential buildings and industrial premises, allowing you to get a stable stable signal for cell phones. The antenna has a wall mount that makes it easy to install and secure to the wall. Specifications: Frequency 791-821 MHz/ 832-862 MHz/ 1710-1785 MHz/ 1805-1880 MHz/ 2500-2570 MHz/ 2620-2690 MHz Type omnidirectional N - female connector Material plastic Gain up to 5 dBi Power up to 50W Cable length 20cm Operating temperature -40C: +60C Size17*10cm Wave resistance 50 ohms
  21. This page details the construction of a biquad antenna. The biquad antenna is easy to build, and provides a reliable 11dBi gain, with a fairly wide beamwidth. an antenna geometry of ideal biquad...
  22. ,,,this is not a biquad antenna...!!!
  23. ,,,I have redone the dimensions (in green) for the 2.442 GHz frequency....!!!
  24. 2x2 antenna panel that shows a circular polarization and operates in 3G frequency band...