collinear stella-5

[Pupe 7]

The stella-5 antenna made by Baltic operates in the 2400-2480 MHz band. the claimed gain is 5 dB. the diagram is circular. I tried to simulate the antenna in cst, but for some reason the resonance turned out to be shifted, all the dimensions were repeated exactly. I am attaching the project, and a photo of the SWR measured on the device

[Pupe 7]

stella-5.cst

[Admin 2579]

Also available for sale are the more powerful Stella-8 and Stella-11 antennas with a gain of 8 dBi and 11 dBi, respectively.

Communication Standard WIFI 2400

Frequency range, MHz 2400-2480

Gain factor, dB 11

Bottom width in the horizontal plane, deg 360

Bottom width in vertical plane, deg 9

Wave resistance, Ohms 50

SWR no more than 1,5

Weight, grams 1100

Dimensions, cm 100 x 8 x 6

RF connector N-Female

 

[Admin 2579]

Pupe, try a Strella-11 omni antenna too....!!!

I think we still need to work on this...

[Pupe 7]

I think I'll get Stella 11 in a couple of weeks. But I never got the result of the Stella 5 simulation corresponding to the measurement... I'll try again next week, maybe some thoughts will come to mind

[Admin 2579]

I tried to optimize your antenna for 2442 MHz .....

[dumser2 18]

What needs to be changed to make it work at 2350MHz?

[Admin 2579]

,,,all sizes...!!!

[dumser2 18]

On 23.11.2024 at 6:54 PM, Admin said:

,,,all sizes...!!!

You can share your file on 2.4MHz frequency

Edited November 25 by dumser2

[Admin 2579]

Is that what you want...??

[dumser2 18]

Yes

 

[clanon 258]

On 11/22/2024 at 3:10 AM, Pupe said:

 I tried to simulate the antenna in cst, but for some reason the resonance turned out to be shifted, all the dimensions were repeated exactly. 

 

 

 

 

DIELECTRICS usually , radome adhesives...All add up in this case sustracts...

[clanon 258]

On 22/11/2024 at 3:11 AM, Pupe said:

stella-5.cst

could any of you post a stl stp file ? (cst2019)

[Admin 2579]

Here it...

stella5.stl

[clanon 258]

thinking about 15dbi or more by adding a reflector...Sectorial...

[clanon 258]

On 22/11/2024 at 1:49 PM, Pupe said:

I think I'll get Stella 11 in a couple of weeks. But I never got the result of the Stella 5 simulation corresponding to the measurement... I'll try again next week, maybe some thoughts will come to mind

Different SOLVERS give Different Center Frequency (Frequency vs Time Solvers)

[dumser2 18]

On 30.11.2024 at 8:11 PM, Admin said:

Here it...

stella5.stl

Made in a hurry but it works, it could be improved but...

Help me set it to 2.35Mhz

Edited December 6 by dumser2

[Admin 2579]

,,,take it...

stella-5.cst

 

[clanon 258]

USE POLYSTYRENE FOAM (STYROFOAM) Low density as a spacer ,is TRANSPARENT to RF and have NO LOSSES 

[Admin 2579]

,,,you can try it...??

[dumser2 18]

Try to reproduce it, but here is my version, I have dimensions with almost the same parameters.