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Admin

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Everything posted by Admin

  1. Conector SMA(mini) sma mic.cst
  2. ,,,,all are 10mm..!!!
  3. A circularly polarized cross dipole antenna includes a cross dipole antenna element formed of two pairs of inverted-V-shaped dipole antenna elements, which are bent like an inverted “V” at a set angle(30 degree), so as to cross each other on a ground plane, and a feeding mechanism provided to perform a single-point feed through a feeding section common to the inverted-V-shaped dipole antenna elements of the cross dipole antenna element. General antenna calculation formula Dimensions closer to the truth
  4. 120x180 mm-reflector...distance=90mm
  5. A novel miniature wideband rectangular patch antenna is designed for wireless local area network (WLANs) applications and operating for 2,442-2,6 GHz , and wideband applications. The proposed antenna gives a bandwidth of 2,3 to 2.7 GHz for S11<-10dB. The rectangular patch is easier to make by WiFi enthusiasts...!!! ,,, and an antenna position in the focus of an offset dish 600mm
  6. I no longer have this file...!!!
  7. Double Patch Regular Polyhedron The rectangle 94*68 mm, the sides of the cutting plane 28 and 16 mm rack Diameter 6 mm. each patch has an input impedance of 100 Ohms, between 0.5 *Lambda of the connecting line. Obtained by parallel connection of 50 Ohms. And cool chart SWR the broadband is a patch in the form of an pseudo- ellipse with eccentricity 0.8, 2 Patches of narrow-band, but with the increase of the gap band of operating frequencies increases at 0.1 Lambda reaches 10/11 %. When band gaps, increases the ability of multi-mode excitation. With the increase of the gap increases and the value of the input impedance. Based on this information, can built a patch with a gap from the reflector is 15 mm. The line length is 0.5 L, so its width is not critical. In this project its width is about 2 mm d = 1 mm The gap( between the surfaces) 15 mm width to reflector Conn. line 13 mm. the distance between the two coherent emitters choose, usually based on two criteria. Or the maximum gain, then it's 1 lambda or a little more. Or at a minimum side lobes, then it is less than lambda, about 0.7/0.8.
  8. I think it's possible, try it...!!!
  9. ,,,,maybe, but simulations need to be done...!!!
  10. Anyway, these dimensions I gave you must be verified by simulation.
  11. ...the first image is for the (central) frequency of 2600 MHz (in red) and the second for the (central) frequency of 2100 MHz
  12. This is not what your tray looks like above....!!!
  13. Yes, I think this would be a solution...!!!
  14. What is this new decision?
  15. yagi

    How real can these dimensions be for the patch yagi antenna...??? ,,,these are according to the website...https://3g-aerial.biz/en/disk-yagi-antenna I think these dimensions need to be checked, which I will try below....I think I'll start with the antenna for 2100 MHz....
  16. Hello everyone.Here are proven horns for offsets at 5.4 Ghz offset 60cm . horn5,4ghz.cst
  17. ,,,,for which this MiMo antenna can cover the frequency band 2.1-2.6 GHz ... ???
  18. Bester antenna variant(2,4---2,7 GHz) with an N-P245 connector...
  19. N-type socket / female N-P245 instrument flanged RF connector, for soldering, extended dielectric, 50 ohms The N-Type connector was developed in 1940 at Bell Labs by Paul Neill, and the" N " in the connector's name appeared due to the first letter of his last name. Initially, the connector was developed for frequencies up to 1 Gigahertz, but later its potential for use was revealed at very high frequencies reaching 11 GHz, and thanks to the subsequent refinement by Julius Botka of Hewlett-Packard, the connector was used in systems operating at frequencies up to 18 GHz and can rightfully share the glory of one of the most popular devices in the world today. the most common high - frequency connectors with its predecessor-UHF. The connector has not found much recognition among radio amateurs and civilian users, but it has gained constant popularity among professionals and is used in mobile communication infrastructure, wireless data transmission (WiFi), paging and cellular communication systems, as well as in cable TV networks, standardized according to the MIL-C-39012 protocols. sma N-P245.cst
  20. Can you post technical details for your antenna...??? ,,,possibly CST-file....??!!!
  21. Antenna for digital TV is no different from antennas for analog TV. choose from a large Ku. Specify which channels are broadcasting UHF. the antenna should cover the range(500-800MHz). This is a realization of VodkaMan friend. Some improvements for this type af patch antenna UHF: Mounting studs M6 with nuts and washers. Line powering with ramps instead of fillets (I think smarter). Reflector rectangular 340mmx290mm, the distance between studs 120mm. Patch - 208mmx208mm truncated cylinder 214mm installed at a height of 65 mm (the gap). Director - 173.6 mm in diameter, at a height of 95.5 mm from the reflector (the gap). Material - galvanized 0.5 mm.
  22. ,,,okay, and inside it has disc elements...???
  23. 5.8 GHz 17dB High Gain AAT Automatic Antenna Tracker for HD FPV RC Racing Drone Product Description: Model: 5.8 GHz 17dB AAT Automatic Antenna Tracker Frequency Range: 5150-5950mhz Input impedance: 50Ω VSWR at surface level: <1.5 Antenna Gain: 17dBi HPBW (3dB): 16 ° H-plane 38 ° E-plane F/B:> 20 (dB) Max Power: 50W Polarization: Vertical polarization Connector Type: RP-SMA Static protection: DC ground Antenna Length (AAT): 30 cm Size: 136*68*10 mm Weight: 57g (Manual)/47g (AAT) Package included 1x5. 8 GHz 17 dB high gain