Hi Junning,
TBC's antenna files have included quite some 3rd-party receiver/antenna types as you may see from the screenshot below. Could you check if the required type is in the list already? Make sure your antenna model points to Automatic, so all available antenna models will be in the pool.

We don't recommend modifying the antenna files manually, as TBC may not understand that model and handles the parameters in an unpredicted way.
Thank you.
Rui