Replacement 5G NR antenna for model GL-XE2000NR

I have been using my model GL-XE2000NR for a few years and the plastic pivot point for the 5G antenna broke a while ago and finally the entire antenna ripped off and severed the cable so now I would like to buy a replacement 5G antenna for this. The manual says it requries a 5G NR antenna which uses a SMA male connector (internal thread and internal needle). But other than that no idea where to find a similar part. I would be happy with a replacement of what we already have if not too expensive I will just buy a couple of them since I expect this to happen again. But I would also welcome any suggestions on other options that have more sturdy pivot point that won't break as easily. Thank yo so much for the help and input

Sorry we have not provided the 5G antenna spare.

The interface is standard, many antennas support in the market, like

Please find them in the online store.