View attachment 64133
Both Ku and X band AESA seeker use vivaldi(TSA).

I think X band AESA seeker is in use in QRSAM while KU band AESA is in use in ASTRA BVRAAM.

If one look at TRM density in

X band seeker above ^ . it has a 180mm diameter aperture size and has 84 radiating elements. Now if you scale up same configuration to say for SU 30 radar aperture of say 900mm how many TRM you can get ?

Seeker TRM density is probably less to avoid constructive and destructive interference + also to deal with power and cooling requirements. also vivaldi is basically two TRM packed in one so let's take it as a double . 84*2 > 168 elements ?

Since antenna size of a radar need to be comparable to it's wavelength and X band wavelength is between 2.5cm - 3.75cm.

We can calculate some good s**t here boys and girls. Thanks @Picdelamirand-oil from other forum to give us the equation to calculate TRM fill factor.

so here's the equation.

E = (4*A)/lamda ^2.

E = number of elements.

A= antenna physical area.

Since we know aperture size( diameter ) of major fighter jets , including Tejas , SU 30 , etc and Seeker above and there wavelength , we can calculate the hypothetical TRM fill factor.

180mm diameter antenna array give us around > between

__72 minimum and 162 elements max. ____since the seeker has__ __84 we get a lamda of 3.48cm____.__
now for SU 30 with same lamda value as above as seeker ( 3.48 cm ) , with 90cm diameter aperture size.

we get a fill factor of around

**2 ,100 TRM count ** for our SU 30 god damnit.

I might be way off here with my calculations and scaling up so free to correct me.

Uttam gaya tel lenay this thing is what we need to scale up lmao!.