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The antenna is interesting but it still needs work, it doesn't have a large bandwidth,,,1,8----2,2 GHz

The 4G LTE MiMO 2x2 Tsar-Pushka VARIUS antenna differs significantly from conventional ribbed-rod "pushka" antennas in its wider frequency band. While conventional antenna guns can only be designed and manufactured for a single frequency band, the Tsar Cannon Varius antenna model works perfectly in the 800 MHz band from 1700 MHz to 2550 MHz. The Tsar Cannon antenna can be used on the following bands: Band 1 (1800 MHz) Band 3 (2100 MHz) Band 40 (2300 MHz) Wi-Fi 2.4 (2400-2500 MHz) The antenna has excellent cross-polarization isolation, which allows the MiMO 2x2 technology to operate as stably as possible. Maximum antenna gain of 11-14 dBi The Tsar Cannon antenna has a pronounced radiation pattern. The antenna can also be used in the 2500-2700 MHz band (Band 7, Band 38), but the gain will be low and the SWR will be high. We recommend using this antenna in these bands only in extreme cases when there are no other options available.

,,,double-biquad I don't think it's quite right, why don't you try a batwing antenna....???!!!

Clanon, how do you go about attaching images like that...??? VNA...???

,,,no, but the interior is built according to the AppCAD program...!!!

,,,a mini-antenna on PCB...and UWB...!!!

,,,,with such a bandwidth (1800-2100 MHz), only the Batwing antenna is suitable....!!!

,,,let see how it work.....at LTE 3 (1800 MHz) and 7 (2600 MHz)-2G/4G network.

Yes, I know, this has been coming up for a few days...!!

,,,Ye Lay.... I don't understand what you mean by these posts...!!!

Clanon, try posting the image here.... and tell me how to post the hidden image (ex. from above,VNA)

The central contact is not short, it is 5.77 mm. I will do a simulation with this connector. SMA Jack.cst

Hy buddy...!!! It would be preferable to connect the antenna to the reflector with wire