RN2483 with wire antenna

End Devices (Nodes)
1

Ladies and gents,

I need help from the RF experts.

I’d like to design a PCB using the RN2483 with a wire antenna.

To connect an antenna via connector, I proper 50 Ohm strip line is required (example design in datasheet).

But, couldn’t find any information how to connect a wire antenna to this module.

Please help.

Kind regards
Gerd

2

Hi,

Nobody here who can help with this?

Gerd

3

Just connect a single 1/4 wave wire to the antenna pin.

I prefer to use PTFE wire, looped thru a PCB hole as a strain relief. The PTFE wire is very tough and slipperly and seems to reduce the chance of damage or removal of the wire.

I have done this lots for both 434mhz and 868mhz devices, and whilst it may not be ideal, or could affect certification for the module you are using, it does work.

4

Hi LoRaTracker

To the antenna pin of the module or to the antenna connector position after the strip line.

The main question was, do I need the strip line for the wire antenna?

Kind regards
Gerd

5

No you dont ‘need’ a stripline when the connection to the antenna pin is very short, a couple of mm.

In most circumstances the shorter the connection between the module and the antenna the better.

6

Perfect!
Thank you very much