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Admin

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Everything posted by Admin

  1. ,,,could it be like that...!!??
  2. ,,,this system is a bit complicated, but I think it can be executed...!!! ,,,and why the frequency of 300MHz...??? ,,,model of a tunable antenna embodiment with Variable capacitors....!!!
  3. No money for a factory TV antenna or have a desire to make something with your hands? Then You have an easy and quick project — antenna-butterfly. It is easy to manufacture, compact shortwave HF-antenna. It is called so because of the resemblance with a butterfly. For its production we need a copper wire with a diameter of about 2-4 mm. If the Antenna of the butterfly is done for external, that is external to the application — you can use 4 mm., and for the home (for example, to improve reception of 3G/4G or WiFi) will fit even a piece of ordinary TV coax cable 75 Ohm. The production is simple — make a rectangular frame from wire. For the theory of conical antennas Butterfly(BowTie) see this ...https://habrahabr.ru/post/328728/
  4. Updated <<KONUS>> 4G antenna model (1800 MHz) with gain up to 17 dBi (max 16.7 dBi), which is also made of composite materials.Composite material consists of two layers of thin, pre-painted aluminum sheet, between which polypropylene(dielectric constant (2.2–2.5) is enclosed,thickness = 3.2mm. Thin composite panels with a thickness of 3.0 mm with a wall of 0.21-0.3 mm,4.0 mm thick panels with 0.4 mm thick aluminum sheet The antenna is made in the form of a cone, with a total length of 620 mm. The output has two F-connectors for connecting a 50-ohm or 75-ohm coaxial cable. It is possible to install SMA connectors on the antenna and make a cable assembly with pigtails for an additional fee.for a fee. Installing and configuring the antenna is quite simple. Instructions for setting up the antenna are attached. You can use it to set up the antenna without even knowing which way the base station is located. ,,,,information from...https://www.avito.ru/voronezh/tovary_dlya_kompyutera/4g_antenna_1800_mgts_s_usileniem_do_17_dbi_2120447796?referer=https://www.youtube.com/
  5. Operating frequency range 2000 MHz Uplink 1900 - 2170 3G mobile connection Radiation sector in the vertical plane 34.5 Horizontal radiation sector 35.0 Gain 15 dB Vertical polarization UMTS 2000 Standard Maximum input power 100.0 W Wave resistance 50.0 ohm VSWr of input and output, no more than 1.5 Mounting position on the bracket / on the mast (up to 50 mm) Housing material Aluminum Connector type N-female Operating temperature range -40..+60 Dimensions 750×110×90 mm Weight 0.3 Kg
  6. ,,, it seems that the user "com66" launches a new cage antenna panel that ensures a good isolation between ports...
  7. Universal 3G / 4G MIMO 2x2 irradiator for parabolic reflector ("plates"). F=1700-2700 MHz. It works in the LTE1800, DC-HSPA+, LTE2600, and WIFI2400 standards. Equipped with F-female connectors. KY=9dBi. Own the coefficient of the radiator, dBi 8÷10 Polarisation -Vertical/ horizontal / inclined Width of the bottom of the irradiator in the plane of the vector E at the level of -10dB, deg-86 - 130 Width of the bottom of the irradiator in the plane of the vector H at the level of -10dB, deg-104 - 116 Input impedance, Ohms-75 Decoupling between inputs in the operating range, dB-More than 28 SWR in the operating frequency range, max.1,8 Permissible power, 10W Overall dimensions, mm 140 x 140 x 140 Weight, g350 Connector 2 x F-female Material of the protective cover Polycarbonate+ABS Antenna material galvanized steel Protective coating powdered polymer paint
  8. ,,,the only method of powering the antenna is the one indicated in the sketch...!!!
  9. ,,,hi buddy...!!! ,,,it seems that the pdf file does not have all the dimensions required for the antenna...!!!
  10. ,,,maybe only this...
  11. ,,,maybe FA20 with more patches..!!!
  12. ,,,good work WEAZY...!!!
  13. Universal remote panel antenna for receiving and amplifying digital TV (DVB-T, DVB-T2) and analogue (UHF) channels. Connector type - F-female. Electrical characteristics Operating frequency range, MHz 470-790 Gain, dBi 7.5-9.5 The width of the days in H-plane, degrees 59÷91 Days width in E-plane, degrees 49-80 Input impedance, Ohm 75 SWR in the frequency range, not more 1.8 Polarization vertical/horizontal/inclined Mechanical characteristics Weight with mount, g 1840 Overall dimensions without mounting, m 0.3 x 0.3 x 0.12 Connector F-female The mast diameter, mm 30÷52 The emitter material, the coating galvanized steel, plastic coating Material of protective box Polycarbonate+ABS Operating temperature range, gr. Celsius -40...+60
  14. ,,, a few years ago I launched on the web such an MiMo patch antenna on PCB which through practice proved not to rise to its simulation level... And that's only because the isolation between ports was not taken into account
  15. yagi

    ,,,other dimensions, another wifi-shotgun antenna...
  16. yagi

    ,,, such a thing cannot be done..!!!! ,,look better on this forum...!!
  17. yagi

    ,, the connection between radiator and vibrator is not visible...show it...!!!!
  18. ,,,it would be easier to build such an antenna...
  19. ,,,yes, all elements of the antenna are not isolated from the reflector..!!! ,,,yes, the cable connection is as shown in the figure...!!!
  20. The Cifra-4 antenna is designed for receiving and amplifying DVB-T, DVB-T2 and analog TV signals in the DMV band. Antenna type: contour-slit. It is recommended for use at distances up to 1-5 km from the TV repeater.CIFRA-4-room bidirectional antenna with gain up to 4 dBi
  21. ,,, yes, but I also need some dimensions...!!!!
  22. ,,,Petra 12 antenna simulation... ,,,with Guanella Adaptation...
  23. ,,,,you want to say something like this...??
  24. ,,,you want to say...a conformal antenna is an antenna that conforms to something; in our case, it conforms to a prescribed shape. The shape can be some part of an airplane, high-speed train, or other vehicle. The purpose is to build the antenna so that it becomes integrated with the structure and does not cause extra drag