Hello @mystery,
We have looked and and tested many bands and designs of antennas, these are the three manufactures we trust & prefer globally for antennas:
In Australia we prefer to use antennas manufactured by both:
We can not emphasise enough about avoiding the cheep knock offs and poorer quality antennas out there, it is not worth the ongoing costs and poorer reliability & performance.
All of the above mentioned manufactures have reliable and good quality MIMO directional and omni-directional antennas for use in the Cellular/Mobile frequency spectrum and also the Wi-Fi frequency spectrum. Talk to your local Peplink Partner for further assistance in sourcing these if you need.
Happy to Help,
Marcus 