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alansy

lte 1800

51 posts in this topic

7 patch antenna

I can't fix the whole topic, I only have photo reports, I can throw them into the 1800 topic, I didn’t like this antenna, the strip is bent from the temperature difference and changes the gap to the reflector and the signal level drops. 1 day works fine, the other stops. it is necessary to install a gap of 5 mm again

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1800 let's do it now14564008.jpg

Edited by alansy
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,,,okay,this it"s...

Kharchenko antenna for 4g modem with your own hands Called the device by name of the engineer who first came up with it. It is a powerful external antenna for usb modem 4g made with his own hands, the schema for the required option can be found in the Internet. We present the easiest. All the parameters are calculated depending on the frequency of reception and transmission of the modem. 

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ll the parameters are calculated depending on the frequency of reception and transmission of the modem. The calculator can be found here.
http://www.texnic.ru/tools/gl/gl002-1-1.html

"Soon I will give the calculated dimensions for double-biquad 1800MHz, with the side of about (0.375 ,,,,0,55)* lambda...!!!

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and all? it's up to 11 dbi. I need at least 15. who did that count?14564008.jpg

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"if I said 15dBi, then let it be ...!!!

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8 часов назад Админ сказал:

Ладно, это ...

Антенна Харченко для 4g модема своими руками Назвал устройство по имени инженера, который первым придумал его. Это мощная внешняя антенна для usb модема 4g, сделанная своими руками, схему нужной опции можно найти в интернете. Мы представляем самое простое. Все параметры рассчитываются в зависимости от частоты приема и передачи модема. 

such at 1800 can you calculate?

6 патч мимо.jpg

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,,,,why do not you try to adapt the old antenna by doubling it ...???!!!

But it's usually like that...

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I myself think to try with old sizes to do so. but I wanted to clarify with modeling what will happen.
But why so many commas, question marks and exclamation marks in a post?

There is http://4pda.ru such alex07111971 is also a fan of commas, question marks and exclamation marks.

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"Anyway, you have to know that such an antenna does not have a good isolation between the ports (P1, P2)...!!!1

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Do you know how to model? it is difficult? offer something 16-20 dbi. With 90mm round patches, I already made 8 pcs of discs.

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7 hours ago, Admin said:

«В любом случае, вы должны знать, что такая антенна не имеет хорошей изоляции между портами (P1, P2) ... !!! 1

same interchange between ports. in the calculation of 1800 which parameters?
  CWS,
  gain?
this form cannot be made at home.
without such a form, with straight sides. count it.

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I  do not understand what you actually want ... you have to decide .. !!!!

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One real antenna for 1800 kHz with dimensions and calculations !!!
You offer me only pictures, that's all.
You offer Kharchenko. which is everywhere on the internet.
one that I offered you, calculate with detailed sizes, with the schedule.
  which can be collected at home.
If not, then good luck to you.

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box from 7 patch antennas, RSRP 104 dbm;  RSSI  78 dbm;

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And it goes better than the gnutik...????

,,,yes, it's a good antenna...

RSSI-1024x360.jpg

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