Lumeniers MMCX AXII 5.8GHz antenna uses all the same tech as the bigger AXII but adds the MMCX connector you need for a direct connection to the VTX. The AXII MMCX antenna is an original design that features a new RF pathway technology (unique hybrid network) allowing it to be incredibly light weight (2g) making it the smallest and lightest 5.8GHz CP antenna. Even though the AXII MMCX is very small and light, it doesn't decrease performance, it increases giving the antenna near perfect 1.0 axial ratio resulting in true circularity. With all these features the AXII brings a high max gain of 1.6dBic enabling the antenna to have performance increases in range and penetration. The antenna also had a wide bandwidth covering the 5GHz band from 5.5GHz-6.0GHz, enruing you have the most clear signal no matter which frequency you're using.
For increased range, clarity and to get your 3db back use the Menace Bandicoot.