Custom antennas, frequency tuning and bandwith


I’m planning to make some custom antennas for my Herelink air unit. I use it on little quadcopters and original ones are way too big

Would you mind to share the exact frequency range and bandwith used by Herelink?

I’d like to tune them to the exact range.


Also any benefits on using circular antennas with digital signal or do you recommend staying on dipole linear ones? ( Considering I would make circular ones on ground unit too then )

You can find some antennas here.

Those are generic. I’m planning to build custom antenna with perfect resonance on center of the bandwith frequency used by Herelink.
Therefor I need those informations first


Any feedback on this?