victor1985 wrote:what is so special at those Gan modules?Austin wrote:Came across this info on upgraded radar for patriot using GaN module , Does Russia have any GaN project for AESA , I believe so far they are all using GaA TR module
if it is about weight well i think that doesnt matter for a truck like s400.....maibe for a handheld radio or something.... [/quote
Lighter Weight , Long Life , Twice the Power Output , Twice the Range , Cheaper atleast once it goes into production
It is a nice update to the emitors of the AESA radars, the GaAs has lower efficiency than the GaN, it means smaller size, less power and less cooling requirements.
It is not so critical in the land based radadars, it is good to have on airborne radars.
However he stealth anyway pushed up the wavelenght, that push down the emitter module count in the radars, so the benefit smaller or marginal than it should be say 30 years ago.
Additionaly the stealth put more emphasis onto the receiver logic , that is the critical infrastructure part now.
That is the reason why Russia spent a lot of money into the Elbrus cpu development, that is more critical than the GaN for the radars.
I think they will work in the comming years on the GaAs anyway, they need that for the MRAM spin transfer torque mechanism .
And at the moment the biggest priority for russia is to manufactre high speed spaceborn cpus an memories.