This is the knowledge base section for Compex Antennas
Which antenna element is for 2.4GHz and which is for 5GHz?
For a dual band antenna, the larger element is for 2.4GHz and the smaller element is for 5GHz. A photo is shown here:
It can be seen that the left and right antenna elements are larger and for 2.4GHz.
The top and bottom antenna elements are smaller and for 5GHz. The antenna feed cables are shown for these elements.