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alansy

lte 1800

89 posts in this topic

not! Please do not write in the picture in English, it is difficult to translate.

You can count in the model?

Edited by alansy

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,,, okay,I will try to do this for you but give me the dimentions of this antenna...!!!

,,,for GSM / LTE 1800MHz antenna must cover these frequency domains;
UL = 1710-1785 MHz
DL = 1805-1880 MHz

,,, so the panel antenna must be broad band BW = 170 MHz min

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,,,,okay ,I will try to do this...!!!

 

,,,but you must to know that this antenna does not cover the frequency range 1710-1880 MHz for LTE1800....!!!

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 ,,,so Down-Up = 95MHz about 100MHz

,,,if the antenna does not cover this frequency band then it does not work...!!!

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I think ALANSY needs two different antennas, one for 1855 MHz and one for 1760 MHz. These two antennas are connected to different connectors of the modem will increase the speed of communication.

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100 MHz is not a wide frequency band...!!!

I think this could be a good configuration for such an antenna....

screenshot_32.png

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Yes, it will be a very interesting design. Does it contain MIMO ?

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44 minutes ago, garry said:

Я думаю, что ALANSY нужны две разные антенны, одна для 1855 МГц и одна для 1760 МГц. Эти две антенны, подключенные к разным разъемам модема, увеличат скорость связи.

I also thought about it, but I don't know much about antenna modeling. Really modem can recognize which antenna to download which upload?

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Yes, my friend modem knows how to work with different antennas.

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On 15.01.2019 at 18:42, Admin said:

,,, хорошо, я постараюсь сделать это для вас, но дайте мне размеры этой антенны ... !!!

 

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9 hours ago, Admin said:

,,, but still, for which antenna ... ???

20190115_082404.jpg

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1 did not.
Option 2 showed a good result.
count the size of the strip

 

20190118_18223511.jpg

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,,,for your antenna I guess it does not work ... ???

g1800_01.jpg

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,,,for which, this is the best shape for this antenna and especially has a very wide band of frequencies ... !!!

 

screenshot_52.png

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1 hour ago, Admin said:

 

1 hour ago, Admin said:

,,,for which, this is the best shape for this antenna ... ???

2.8-2.9 VSWR at 1850 MHz is probably a lot?

If there is no other option, give the dimensions, I will check what happened.

screenshot_52.thumb.png.02cef1925d982f8efe893dd4d25d9aed11111.png

 

 

 

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I'm still working on this antenna for optimization...!!!!

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