taranis x9e generic antenna mount

With the new Frsky R9 module and a replaced standard cable for the internal module, a problem appeared: where do I fix my antennas?
I did some VSWR test all around with my antenna analyzer and the original antenna for 2.4Ghz was far from being efficient.
With new antennas, the metallic handle was also disturbing the signal.

This "thing" allows to set 2 antennas in place of the original handle, and once detached, allowing to fit the x9e in the soft case for transport without disconnecting th