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Bester Antenna

193 posts in this topic

My antenna bucket horn for 1800 LTE Mimo

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11 minutes ago, Admin said:

,,,wrong...!!!

Screenshot_2021-07-21-18-00-46-98_499552f372306c48d0e7df410f43d39b.jpg

 

Edited by Hamza
Errore

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Look Jomy   I got Very excellent result  ! 

And where is the fault !??

 

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2 hours ago, Hamza said:

Look Jomy   I got Very excellent result  ! 

And where is the fault !??

 

02.jpg.c75a71c63c4159cb49971ff08ae53aaf.jpg

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Clanon the 2 options  are possible and mine is stronger  construction   

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,,,a Bester Antenna  after Harry36...

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1 hour ago, Admin said:

`` Антенна Бестера после Harry36 ...

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I'm glad you like my antenna.

You are wrong with the choice of the disk size. Antenna SWR with optimal dimensions should not exceed 1.15

For example, here are two calculations, the first in FD and the second in TD. And in HFSS ;)

Screenshot_20210913-152048-301.png

Screenshot_20210913-152018-763.png

IMG-1d92afc432f6d79ca32bfe8653c7297d-V.jpg

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,,, then try to transposes this type of antenna on the frequency range 1.7-2.7 GHz...!!!

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,,, with this type of connector ...

screenshot_540.png

I adapted this Bester antenna....

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And here is the connector file for those interested....

sma 5110CC.cst

,,,and BesterM Antenna...

besterM.cst

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8 minutes ago, Harry36 said:

This type of connector is not suitable for the model's dimensions.

 

 

 

,,, wrong, look at the calculation once again .... !!!!

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2 hours ago, Admin said:

,,, wrong, look at the calculation once again .... !!!!

I don't need a calculator to add 3 numbers.

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,,, yes, I see that you are on the right track, I didn't understand what you meant before, why is not the suitable connector ... ?? ... !!!

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On 27.09.2021 at 8:08 AM, Admin said:

,,, yes, I see that you are on the right track, I didn't understand what you meant before, why is not the suitable connector ... ?? ... !!!

If you cut Teflon (0.6 mm) or place a washer under the back of the reflector, you can use the SMA-09V4-TGG connector.

DOC004011463.pdf

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,,,,yes, but the same can be done with my connector above...!!!

,,, okay, you can make a   * cst file with this connector...???

 

screenshot_557.png

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,,yes, it's true, the distance between directors and the diameter of the directors, it would be best, I  think it is Lambda / Pi = 0,318*Lambda...!!!

 

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I think these Bester antenna sizes ensure a higher bandwidth

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,,, or with 12 elements...

screenshot_898.jpg

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,,,for which this antenna variant is also very good ... ???

 

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,,,an antenna with square elements cut corners...

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nice job jomy  for 1800 mhz it will gives  good isolation for x polarisation  or  needs  to be recised ?

 

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On 4/17/2022 at 9:54 PM, Hamza said:

nice job jomy  for 1800 mhz it will gives  good isolation for x polarisation  or  needs  to be recised ?

 

,,, it might work, but the isolation between ports leaves much to be desired, it must be tried ... !!!

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