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Admin

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  1. ,,,a first simulation attempt, optimization follows...
  2. A new attempt at impedance equalization,with a single port... ,,,and some other dimensions...
  3. Clanon,could you give some dimensions?
  4. AX-OFFSET D60 offset mesh reflector with high wind resistance, robust all-welded construction. Designed for use in a complete set with irradiators at frequencies up to 7000 MHz. Recommended for use in LTE800/GSM900/LTE1800/LTE2100/UMTS2100/LTE2600/WIFI networks. The irradiator is not included in the kit and is supplied separately. Electrical characteristics Gain factor F=800 MHz at KIP=0.55 11,5 dBi Gain factor F=1700 MHz at KIP=0.55 18 dBi Gain factor F=3000 Mhz at KIP=0.55 22.5 dBi Gain factor F=7000 Mhz at KIP=0.55 29 dBi Mechanical characteristics of the antenna Weight with mounting, g 1900 Overall dimensions, mm 660 x 6 00 x 465 Overall dimensions in the package, mm680 x 610 x 150 Diameter of the irradiator seat, mm 40 Mirror dimensions, mm 700 x 600 Offset angle 31° F/D 0.53 Aperture opening angle 100° Mast diameter, mm 35…52 Antenna Material Galvanized steel, Steel Protective coatings Powder paint Operating temperature range -60.... +100°C
  5. ,,, another version of Bester Antenna by Alexander Bars.... and positioning this antenna in the focus of an offset parabolic dish
  6. Another combination...
  7. Loop yagis are basically a hybrid design of a tuned loop in a yagi type array. The best material to use for the construction of a loop yagi is brass, or copper. Brass is the better choice since it is easier to solder and corrodes less than copper. An example of a loopyagi in use. The antenna is on it's side so that the polarisation is vertical.
  8. ,,and yet where are the dimensions...?
  9. ,,,and this loop is for 145 MHz...
  10. ,,,and they are really interesting....
  11. This size of wire is not suitable for this frequency.
  12. I think it would be best to build the loops from 3x25 mm flat strip."
  13. ,,,like this../
  14. Henry, you really want this antenna...???
  15. ,,,maybe something like this 144 Mhz Magnetic Loop Antenna...
  16. ,,,hi buddy...!!! The yagi-loop antenna is too big for this frequency...!!! (the circumference of the vibrator is approximately equal to the wavelength)
  17. ,,,,other construction details... yagi antenna.pdf siap print driven double U WD CHANEL.pdf driven double U.pdf
  18. I think this connector should also be taken into consideration." sma 5110.cst
  19. S11 or VSWR indicates the amount of energy reflected in the RF circuit and transmitted to the antenna. The smaller the value, the better it is. Generally, S11≤-6dB or VSWR≤3 would indicate acceptable performance.
  20. And what...isn't it good...????
  21. yagi

    >>>this might help you somehow...!!!
  22. yagi

    ,,,hi buddy...!!! The border has an influence on the directivity of the antenna.
  23. ,,,and here it's Vika-1.1-800/2700N MIMO-Mesh Collapsible Parabolic Broadband Antenna LTE800/LTE900/LTE1800 / UMTS2100/LTE2100/LTE2300/LTE2600 Powerful 2G/3G/4G/WIFI broadband antenna with high wind resistance and collapsible design. Gain 15-26 dBi. F=790-960/1700-2700 MHz. Ra=50 ohms. Recommended for use with 3G/4G modems and routers over long distances.
  24. ,,,this is not possible, it's a mistake in the SMA plug (the connection between the plug and the vibrating disc)>>>!!!! ,I will send you the cst file"