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Admin

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  1. I don't really think so, it has to be checked...!!!
  2. If your model is symmetric, you may define this symmetry planes here. For particle tracking calculations the symmetry option can only be applied if no space charge and particle current is monitored. Therefore symmetry conditions cannot be applied for gun-iteration calculations. Important: It is necessary to create the entire structure first.Every symmetry plane you find reduces the calculation time by a factor of 2, so it is always recommended to specify symmetries, if any exist. The type of the symmetry can be either electric or magnetic. If you specify a symmetry plane, the calculation domain is cut in half. The picture on the right shows a calculation domain symmetric to the YZ plane. The symmetry type is electric. The calculation domain is cut in half twice more if a symmetry type for the XZ and XY can be found.
  3. ,,, with other caps, this can also be done... 2.3-2.7 GHz frequency band (UWB)
  4. Coffee Amigo Cap as Panel Antenna What can be done with 4 COVERS instant coffee...!!!
  5. ,,or a Batwing antenna.... ....with a parasitic circular director....!!!!
  6. 4G 3g 2G LTE WCDMA GSM 800 900 1800 2100 2600 mhz Antenna GSM ceiling antenna for repeater or amplifier of mobile signal The Gain Is 5 DB. Coverage is not much more than that of a small pin antenna from the repeater kit (more than 1.5 times). 1-2 rooms. 5 DB. Plus (i.e. minus) the normalized signal loss at the N cable connection (if the antenna socket is connected by an extension cable).
  7. The antenna features a dipole in lambda, bent with open ends, disposed on a grille reflector
  8. ,,,,this fractal antenna might be an older idea for AUREL...??? https://www.edaboard.com/showthread.php?275408-Fractal-Quad-2-4-Ghz&highlight=fractal+antenna
  9. ,,,a simple notched lid can be placed in the bucket... ,,,or so with the bottom of the bucket...
  10. ,,,it is still possible...!!! slot patch.cst
  11. ,,, it is possible, but a medium (center) frequency must be chosen...!!!
  12. ,,,and now I present to you the construction details....!!!
  13. ,,,thanks...!!! ,,, soon I will give the dimensions ... !!!
  14. I managed to optimize the Batwing antenna by using an elliptical curve, which led to a uniformity of broadband...
  15. 2x2 MIMO directional antenna for the LTE1800 (B3) band. F=1700-1880 MHz. CU=15dBi. F-female connectors (75 ohms). It is recommended for use at a distance of up to 10 km from the operator's BS. Electrical characteristics Operating frequency range, MHz 1710-1880 Gain, dBi 15 Bottom width in the N/E plane, deg 35-37/33-35 Forward / backward ratio, dB at least 12 Decoupling between antenna inputs, dB>27 Input impedance, Ohms 75 SWR in the operating frequency range, max. 1,7 Permissible power, W 10 Polarisation vertical+horizontal Mechanical characteristics Weight with mounting, g 720 Mast diameter, mm 30÷52 Overall dimensions, m 0.630x0. 12x0. 12 Permissible wind speed, m / sec 35 Connector 2 x F-female Number of elements 13 Mounting and antenna material galvanized steel Protective coating powdered polymer paint Material of the protective box ABS
  16. 20x31,8 mm:5 mm,,,,it is clearly seen in the drawing above...!!!!
  17. ,,, so be it ... ??!!
  18. A compact aperture-coupled patch antenna designed for achieving wide-band vertical-polarized radiation suitable for applications in GSM 1800-MHz systems is presented. The proposed antenna consists of a rectangular patch (for 1700-1850MHz operation) and a director rectangular patch . For simplicity, these antenna elements are glued to polystyrene foam spacers
  19. This yagi style printed circuit board antenna gives great performance from 2400 to 2450 MHz. This range is commonly used for wireless systems 802.11b/g, RFID systems, satellite dish antennas, dish feeds, and beacons. This can also be easily applied to other hobbyist applications in this range.
  20. Mobile Communication Generation 3G, 4G Dimensions, mm 450x250x60 Cable type RG58, RG8 Input impedance, Ohms 50 Radiation Omnidirectional action Connector type F male Type of polarization Horizontal, Vertical, and X-polarization Class Panel version Effective distance to BS, km 15 Frequency support, MHZ 800, 900, 1800, 1900, 2100, 2600, 2700, 1700 Standard support 3G, 4G Operator Support Kyivstar, Lifecell, Vodafone, Intertelecom, Peoplenet, Trimob Gain factor, dB 17 Manufacturer R-Net Device Type Antenna usb-modem.com.ua
  21. ,,, Harry36,dimensions or CST simulation...!!!
  22. ,,, such as dual band,,,??, maybe, cross polarization...!!!
  23. ,,, that's what it would look like ... !!! ,,,by o_pylypenko...!!!
  24. https://www.wikihow.com/Check-Internet-Speed
  25. This is an article edited by the user "com666", for which, I would like to thank them....!!! The range of mobile communications covers a wide frequency band. The bands LTE800, LTE900, LTE1800, LTE2600 are already used to transmit LTE signals in Russia. 3G signals are transmitted in the ranges wcdma900, wcdma2100. To receive mobile signals in these ranges you need broadband antennas. Among industrial designs, it is difficult to find simple and repetitive designs. Most often, antenna manufacturers use separate antennas for the low-frequency and high-frequency parts of the range to cover the entire range and combine them with a frequency-dependent combiner. This approach has many disadvantages, such as: The design of the antenna is much more complicated. The hardest thing to do is a filter adder. The area occupied by the antenna is increasing. Losses from summing ranges are growing. Examples of such antennas in the photo below. SHYAM Antenna for 900 + 1800 Dual Band Repeater: However, full coverage of all ranges of mobile communications is not provided. There is a need for a simple broadband design with the overlap of the entire range of mobile communications 800-1700 MHz. Here is an example of such an antenna: The antenna is a modernized broadband Batwing, 1945 patent. "Batwing Super-Turnstile Antenna US Patent Number: 2480153 Year: 1945 Inventor: Robert W. Masters Original Document: US Patent Number 2480153 " There is a mention of this antenna at Rothamel in the book "Antennas" The antenna sheet can be cut from a flat galvanized sheet, 0.7 mm in one pass with a laser cutter. Additionally, you need to solder or rivet the cables from the same material with a size of 34x14mm. The antenna uses two flat square screens: Lower 220x220, above 95x95. Specifications: