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,,,another form of Bester antenna...

Powerful wide-band antenna 2G/3G/4G/WIFI. Strengthening 17.5-20.0 dBi.It is recommended to use complete with universal modems Huawei Е392,E3276(M150-1) and the usual 3G and 4G modems. Electrical characteristics Operating frequency range, MHz 1700-2700 The gain in the GSM1800 band, dBi 17,5-18 The gain in the 3G range (1.9 to 2.2 GHz), dBi 18-19 The gain in range of WIFI (2.4 GHz), dBi 19,5 The gain in the range of 4G (LTE), dBi 19,5-20,0 The width of the days in H-plane, degrees 15-26 Days width in E-plane, degrees 15-26 The sidelobe level is not more -12dB The level of cross-polarization, not more -25dB Input impedance, Ohm 50 The CWS in the range of GSM 1800, nothing more 1.6 The CWS in the range of 3G/4G/WIFI, not more 1.4 Permissible power watts 50 Polarization vertical/horizontal Mechanical characteristics Weight with mount, g 3195 Mount mast diameter 20-52mm Overall dimensions without mounting, m 0,45х0,45х0,06 Allowable wind speed, m/sec 20 Connector N-female Material of protective box Polycarbonate+ABS Antenna material galvanized steel Fastener material steel Protective coating powder polymeric paint

3G feed MiG Offset LTE MIMO 2.1-10 for offset plates are designed for use in conjunction with offset dish satellite antenna. The irradiator is installed in a regular place of attachment of the satellite Converter and gives a powerful gain of up to 28dBi. If Your 4G modem works bad in the country, and low-speed Internet access and a small signal level is not satisfied, then installing 3G LTE 2100 radiator on a plate from a satellite antenna You get reliable reception of the 3G signal at a considerable distance from the base station. "and the MiMo version...

,,,an best Bester...

At the request of a friend 'Ahmed", I designed an MiMo antenna of the GSM band(800-950MHz)

Make a parabolic Wi-Fi dish to boost your Wi-Fi reception from junk laying around your house. This simple project was not intended to be a masterpiece of mechanical engineering. It is simply an idea of how to make your Wi-Fi signal a little better hopefully without spending much cash. The way a Parabolic works is that it reflects the signal from a larger surface area than that of the antenna alone. Then concentrates it at the focal point where it has another hiperbolic reflector ,

,,,one of my oldest antenna variants...

One of the most simple and easy ways of coordination feeder impedance Z0 and the antenna ZA is a consistent inclusion in the feeder a small line segment with another wave the impedance ZS(on heterogeneity in a line). Length matching section (up to a quarter of wavelength) and the place of its inclusion in the feeder depending on the required the transformation ratio of the resistances and from the how its characteristic impedance differs from the wave impedance of the feeder. [1] Wave the impedance matching section ZScan to be within Z0 > ZS > (Z0 x ZA)1/2 , if ZA < Z0 , or Z0 < ZS < (Z0 x ZA)1/2 if ZA > Z0. Practically, when use feeder with Z0=75 Ohm, transformation of resistance of the antennas from 8.33 to 75 Ohm you can use a section of two parallel connected cables at 50 Ω (with the resulting ZS = 25 Ω). If Z isA not below the 33.3 Ohm matching section can have an impedance of 50 Ohms. Section two connected in parallel cuts 75-a lot of cable (ZS = 37,5 Ohm) provides the coordination 75-lot feeder with any of found in practice impedances of a multi-element Yagi antennas and Quad. If ZS = (Z0 x ZA)1/2, the length of the section becomes equal to 1/4 wavelength, and the distance from the load where the partition should be included in the feeder zero. This is a limiting case of serial transformer, widely known as "quarter-wave the transformer". Another private case - when ZS = ZA. Then the length of the section, and its distance from the load equal approximately 1/12 of the wavelength. [3] In another the limiting case, when ZA is close to Z 0 , the length of insertion of the Z's is committed to the zero point of the feeder, located at a distance of 1/8 the wavelength of the load (this case is not practical interest, as means that the transformation resistance is not required). For operational calculation of the matching antenna circuit that is configured to resonance (XAND= 0), you can use graphs 1-5. Sizes are in fractions of the average the operating wavelength, and physical length of the segments cables should be calculated based on the velocity factor, which is not always equal to 0.66, it is necessary to measure each cable individually. This kind the transformer allows you to coordinate not only the resonance of the antenna. For example, charts 6 and 7 shows how to change length of 37.5 Ohm section and its place in the inclusion of 75 Ohm feeder in depending on the magnitude of the reactive component (XA) the impedance of the antenna at two constant values the active component RA = 22 Ω, and 45 Ohms. by Yuri Baltin, YL2DX

,,,which frequency.../?

,,,yes...!!!

,,,a new Petra 9...

,,,another nonsense...

,,,another idea...!!!! It is not a good solution...

NITSA 1--it's very good, but I think it can be even better...!!!

NITSA-1 Antenna or Ceiling Antenna....???!!!

,,no, for this you need other dimensions...!!! ,,see the first post...!!!

...yes, but I don't really trust the gain of the antenna..!!!

Dedewe,how would that be...

,,,okay, I will try...for the frequency of 1800 MHz...??/

,,, for the impedance of 75 Ohm, the distance of 7 mm must be modified...!!!

I don't really think so, it has to be checked...!!!

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.

,,, with other caps, this can also be done... 2.3-2.7 GHz frequency band (UWB)

Coffee Amigo Cap as Panel Antenna What can be done with 4 COVERS instant coffee...!!!

,,or a Batwing antenna.... ....with a parasitic circular director....!!!!