PETRA-9 MIMO 4x4 Unibox-2

[Admin 2578]

Petra-9 MIMO 4x4 Unibox-2 is a 3G/4G antenna combined with a spacious sealed box (Unibox-2/Unibox-2L) in which you can place an LTE modem with support for MIMO 4x4 technology or two modems with support for MIMO 2x2 technology. The antenna is equipped with reliable connectors-SMA-male (50 ohms). Antenna adapters for connecting LTE modems are not included. The modem communicates with an indoor PC or router via a USB extension cable (USB 2.0).

If the router is installed inside the box, the antenna can be equipped with a sealed PG-7 or RJ-45 pin (instead of a USB extension cable)

Electrical characteristics of the PETRA-9 MIMO 4x4 UniBox-2 antenna

Operating frequency range, MHz 1700÷2700

Gain factor, dBi 8,5÷10

Bottom width in the H-plane, deg 59÷82

Bottom width in the E-plane, deg 35÷57

Side lobe level, max -7 dB

Decoupling between ports in the operating range, not less than 25 dB

Input impedance, Ohms 50

SWR in the operating frequency range at the inputs, max. 1,5

Permissible power, W 10

Slope of polarization of received / emitted waves -45°/+45°(X-pol)

Mechanical characteristics

Weight of antenna, mount, box, extension cable g 1900

Bracing mast diameter 20-52 mm

Operating temperature range -60°C to +80°C

Overall dimensions without mounting, m 0, 24x0, 24x0, 1

Permissible wind speed, m / sec 25

Connectors 4 x SMA-male

Material of the protective cover -Polycarbonate+ABS

Antenna Material -Galvanized steel, brass

Mounting material steel / Polycarbonate+ABS

 

[Antenna gun 3]

please show me how to make them

[Admin 2578]

28 minutes ago, Antenna gun said:

please show me how to make them

,,, okay, I will try to do a simulation with this antenna...!!!

[Harry36 145]

On 04.06.2021 at 0:21 PM, Antenna gun said:

please show me how to make them

An approximate model of one element without exact dimensions and optimization.

Only the principle of construction.

 

[Harry36 145]

[Admin 2578]

,,, and from the front ... ??? ,,, this is Bester antenna ... ??

[Harry36 145]

Antex 4x4

[Admin 2578]

,,, what does it look like from the front .... !!!

Bester...

[Harry36 145]

56 minutes ago, Admin said:

Bester...

 

))) Antex

 

[Admin 2578]

,,, well then, if you have a sample why not do a simulation with it ... ??? !!

[Harry36 145]

1 hour ago, Admin said:

,,, well then, if you have a sample why not do a simulation with it ... ??? !!

I don't have this antenna. I can only roughly predict the dimensions. Above, I laid out the estimated modeling, but it seemed to you not interesting. I adjusted the dimensions to good results at 75 ohms.

 

I drew a 50 Ohm model in the original design. And played around with the size a bit. There is a reserve for tuning. I think I can get results like the 75 ohm option or better.

 

 

[Harry36 145]

4x4 UNORIGINAL dimensions!

[Admin 2578]

,,,and dimensions...???

[Admin 2578]

,,,what does the antenna look like ... ???

 

[vova.gumerov 23]

A masterpiece of antenna engineering

[jbckdsav 7]

How to convert this to Bester type antenna for irradiator?