QUESTION

Question

Hi guys,

I’ve been redesigning this PCB for a while, it’s a 50x30mm rectangular PCB with the reserved antenna space from the edge to the center of the long edge. This PCB will be used on a case, so case tunning will be required.

Sinica antenna seems the have the performance quite degraded at 40mm edge size, but Beltii seem to have a relatively small GND size requirements so will it be a better option? For what it seems on the forum, Beltii is not being recommended for these small applications…

Bear in mind we’re already running a gnss LNA and SAW filter.

Thanks for the support,

Jorge G.

Answer 1

Hi Jorge,

Sinica will work better than Beltii in this case, Beltii is designed for use where it is not possible to have a clearance area. On a 50mm length PCB you must place the antenna as central as possible on this edge for the best performance.

Many Thanks

Steve