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Petra-9 2x2 MIMO BOX antenna

32 posts in this topic

Universal antenna Petra-9 MIMO 2x2 built-in professional sealed box. CRC9 connectors. F=1700-2700 MHz. GAIN=9dBi. Polarization X-pol. Standards: LTE-A, LTE1800, LTE2600, UMTS2100, WIFI.

PETRA-9 MIMO 2x2 Box is the antenna combined with a large sealed box in which you can put any 3G/4G modem and even router. The antenna is provided with connectors - CRC-9. The connection of modem to PC or router located in the room is via a USB extension cable. A sealed box will protect the modem from adverse weather conditions!

 

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It seems like this antenna pattern is a shit, in fact a Russian lie...

 

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"Yes, of course, if you place two such antennas at 45 degrees for a circular polarization, 3dBi is lost from the gain of the antenna but can not provide frequency bandwidth (1.7-2.7GHz)

 

CONSTRUCTIVE DETAILS

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,,,but it must to...

 

original.jpg

 

 

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Files for laser cutting,,,,

oval.dxf

Oval.cst

 

And another way,,,,

 

 

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,,, and yet it looks better .. !!!

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Hi! I'm a bit confused about the antenna. I've downloaded the template file *.dxf opened it and found out that the rounded stripe connecting the two ovals has a line across it. Does that mean that the rounded stripe has to be cut along that line. I haven't seen tat there's a cut on the photos and pictures with the simulation. What's that? Can you explain it to me? 

Edited by maksimerin

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Ok. That's handy! How to make one? 

Actually i was meaning what is shown on the picture. 

Screenshot_2018-04-27-13-15-56-205_com.google.android.apps.docs.png

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,,, with what program do you read the *dxf file?

,,, you can make the transmission lines separately from ellipses and then you can weld them.

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28 minutes ago, maksimerin said:

Autocad mobile and DWG fastview for Android. Both the same result. 

,,,you do not have a desktop...??

 

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Ok. Here are the files for laser cutter in different formats. They have to load properly otherwise if you still experience issues with them while opening approach me here directly via messages. Best of luck!

oval.png

oval_2.cdr

oval_2.dwg

oval_2.dxf

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ok, but the holes for the coaxial cable need to be drawn...

(1).jpg

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Here is my take on this antenna built of PCB. I screwed up with the size of the reflector,  i'll change it after some meddling with it. 

IMG_20180514_195514.jpg

IMG_20180514_195523.jpg

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oooo .... it's like a work of art ... !!!

,,, but tell me please Maksim, the vibrator is made like the reflector in PCB ... ??

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Yes. I turned the vibrators upside down to have the distance between copper plates 23 mm as it is mentioned in the specs.

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«В любом случае, я должен сделать симуляцию с этой PCB ... !!!
,,,какой тип печатной платы сложен .. ???

"In any case, I have to make a simulation with this PCB ... !!!
,,, what type of circuit board it"s .. ???

 

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1,5mm однослойная, должно быть fr4. покупал в обычном магазине радиоэлектроники.

 

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,,,and how did you cut the PCB...???

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I used a milling machine with CNC control which is used for cutting the wood, laminate, etc. But the result was not predictable for the operator had to try it out first and after he got to know that it was possible to have those details cut he did it. Before that i tried laser cutting machine which is used for thin wooden laminate but it couldn't handle it.

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The vibrator made of FR4 # 1.5mm and moving the support points in its center...

screenshot_5831.jpg

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