If Rafale F4.xx wins MRFA, then it's entirely possible that we may demand an all-new GaN radar or GaN dish on RBE2 AESA backend!! Anyways, GaN for SPECTRA shall be realized before that, so that's quite good for us.I think it is possible to have a GaN antenna on RBE2AESA, so you may have it before F5, if you agree to pay.
It is rumored that Spectra antennas already are in GaN, so it is possible, but :
- GaN modules remain expensive, and a radar antenna has far more T/R, so cost ++
- The range of a GaN antenna is bigger than the one of a AsGa. If your hardware is not powerfull enough to scan the bigger space seen by the antenna, it is not optimum.
So the french decided to study a complete new radar, with a GaN antenna, a far more powerfull hardware behind, and a pinch or two of IA to help : XG one.
I think the value of Rafale far excels, GaN vs GaAS debate as it's an excellent plane by design. You French have really created a marvel. Rafale is literally a 'do it all' plane.
Just hope Rafale wins MRFA competition and we end up with over 200 Rafales(what was our original choice).