antenna for band 42

[alireza_asol 0]

hi

which antenna design you recommend for band 42 lte with high gain?

i tried to build quados 8 antenna but it didn't work...

[Admin 2523]

,,,band 42 = 3,4 GHz frequency...???

,,,maybe this antenna will satisfy you...17 dBi gain...

 

[devton 27]

17 hours ago, alireza_asol said:

hi

which antenna design you recommend for band 42 lte with high gain?

i tried to build quados 8 antenna but it didn't work...

maybe it worked?

did u checked your quados8 with SWR-meter?

 

this antenna got horizontal polarization when placed vertical

so it could not work with base station because of polarization missmatch -20...30db

 

and if u rotate it 90degree, make parallel to the ground, it got ultra-thin radiation pattern so it is VERY hard to  point it to basestation

[alireza_asol 0]

On 6/18/2024 at 7:42 AM, Admin said:

,,,band 42 = 3,4 GHz frequency...???

,,,maybe this antenna will satisfy you...17 dBi gain...

 

i think exact frequency is 3570 MHz

is it possible to make all 6 circles and wires in one piece with laser cnc? or it must be wire?

[alireza_asol 0]

On 6/18/2024 at 5:26 PM, devton said:

maybe it worked?

did u checked your quados8 with SWR-meter?

 

this antenna got horizontal polarization when placed vertical

so it could not work with base station because of polarization missmatch -20...30db

 

and if u rotate it 90degree, make parallel to the ground, it got ultra-thin radiation pattern so it is VERY hard to  point it to basestation

i don't have swr meter.

i tried to build it as accurate as possible with my available tools.

maybe the aiming was the problem.

maybe i built it wrong.

maybe cable was not good enough.

even modem didn't detect it as an antenna.

[Admin 2523]

6 hours ago, alireza_asol said:

i think exact frequency is 3570 MHz

is it possible to make all 6 circles and wires in one piece with laser cnc? or it must be wire?

,,,it is possible if you have access to a laser cutting machine...!!!

,,,but I have to design you another antenna on the desired frequency...!!!

[devton 27]

8 hours ago, alireza_asol said:

 

to connect to base station u need antenna with vertical polarization

so u should place it like that:

 

[devton 27]

and remember radiation pattern in this orientation - thin beam

so u need to poin EXACTLY to base station, know exactly where it is, because:

 

[alireza_asol 0]

11 hours ago, devton said:

and remember radiation pattern in this orientation - thin beam

so u need to poin EXACTLY to base station, know exactly where it is, because:

 

yes... thanks for information. when i chose quados antenna i didn't know that it has horizontal polarization. maybe amos antenna was a better choice.

how is the polarization and 3d radiation pattern of patch array 2x3 that admin recommended?

On 6/18/2024 at 5:26 PM, devton said:

 

Edited June 20 by alireza_asol

[devton 27]

1 hour ago, alireza_asol said:

yes... thanks for information. when i chose quados antenna i didn't know that it has horizontal polarization. maybe amos antenna was a better choice.

how is the polarization and 3d radiation pattern of patch array 2x3 that admin recommended?

Well, you can use your quados8 if you place it parallel to the ground and point exactly on base station

 

3x2 antenna from Admin...looks like it vertical polarization if placed as on picture

it should have  beam, cone radiation pattern

not too wide 25 degree or something like that

[alireza_asol 0]

On 6/18/2024 at 7:42 AM, Admin said:

,,,band 42 = 3,4 GHz frequency...???

,,,maybe this antenna will satisfy you...17 dBi gain...

 

what you think about 3d-corner antenna compared to this?

3d-corner looks very easy to build. 

https://3g-aerial.biz/en/online-calculations/antenna-calculations/3d-corner-antenna-design-and-calculation

which is better in your opinion fir 3570mhz ?

thanks a lot.

Edited June 23 by alireza_asol

[Admin 2523]

,,,it's your job, do as you want..!!!

[alireza_asol 0]

7 hours ago, Admin said:

,,,it's your job, do as you want..!!!

ok maybe i build both and compare them...

just give me the diameter of the wire in your design please. tnx

[devton 27]

8 hours ago, alireza_asol said:

what you think about 3d-corner antenna compared to this?

3d-corner looks very easy to build. 

https://3g-aerial.biz/en/online-calculations/antenna-calculations/3d-corner-antenna-design-and-calculation

which is better in your opinion fir 3570mhz ?

thanks a lot.

3d-corner easy to build

this antenna maybe hard to cut circles, maybe not...

 

the Easyest way for you is to try to use your quados 

[Admin 2523]

,,,anyway, this is quite small...

150x230mm

[alireza_asol 0]

9 hours ago, Admin said:

,,,anyway, this is quite small...

150x230mm

this is alternative to circles? nice thanks. 

can you give me the dimensions?

and if its possible dimensions for circle one for 3570mhz if it's different with 3400 that you post before.