Starlink Dishy

[clanon 258]

https://youtu.be/iOmdQnIlnRo?t=924

,,,why it doesn't work..??

 

[clanon 258]

[clanon 258]

[clanon 258]

[clanon 258]

analysis

[clanon 258]

each CIRCULAR PATCH (director too) FLOAT on dielectric NO CONTACT...

Energy is fed trough slots at 90 degrees from each IC Driver

one for each circular patch

Circular polarization , slot feed , direct IC drive...ACTIVE PHASED ARRAY (for satellite pointing)

[clanon 258]

[clanon 258]

MORE DETAILS

Edited March 26, 2021 by clanon

[Admin 2578]

,,, well, and what to do with all these images?

Don't you think these are pointless?"

[clanon 258]

 

Edited March 26, 2021 by clanon

[Admin 2578]

,,, well, then tell me how these DIY images help..!!!

[clanon 258]

well i personally ADAPTED  3,5 ghz and 5,8 ghz designs to 2.4 ghz ...

any antenna could be UP-scaled or down-scaled...

haven't tried slot feed yet...(it seems hard to get it right on DIY)

but the PATTERN and PATCHES design could be used on ANY frequency system...(MiMo array) CP

There's NOTHING unusual on the design...(except the electronics and the frequencies)

feel free to delete

 

[Admin 2578]

,,,okay, let it be....!!!!

[tomasbj 5]

I thought this worked on:

Downlink (Satellite to User Terminal): 10.7 GHz to 12.7 GHz

Uplink (User Terminal to Satellite): 14.0 GHz to 14.5 GHz

Considering that nowadays satellite constellations is a demanded topic, I think now this post is really useful.

My questions below:

1) What are these cross patch shapes for? Directivity control, so that more gain? ... Surely the cross shape is for circular polarization achievement/improvement.

2) So...  they use slot feeding mechanism?

 

 

[Admin 2578]

,I think it would be interesting to build a monopole antenna for the 5.5 GHz band...Broadband Circularly Polarized Patch Antenna Arrays With Multiple-Layers Structure

,,,does this by using an L-shaped feed on the layer below, and covers almost the exact frequency range needed (roughly 10-14 GHz)

[clanon 258]

On 6/14/2024 at 2:08 PM, tomasbj said:

 

1) What are these cross patch shapes for? Directivity control, so that more gain? ... Surely the cross shape is for circular polarization achievement/improvement.

2) So...  they use slot feeding mechanism?

 

 

They are  Circular polarized disc patchs Right hand and Left Hand  without the CUTS it would go linear...

and are switched electronically from RHCP to LHCP 

and EACH disc  could be fed (slot feeding) the phase of signal you program (delays) to make an Electronically Scanned Array (no need to point to Each satellite , the electronics do that) AND there is BEAM FORMING too...

Edited June 17 by clanon

[clanon 258]

https://www.scielo.br/j/jmoea/a/5RBXvnGygJNrS8LCHSCdFLJ/