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I'm more curious on the seeker department. AESA seeker might means strapdown, this demand high bandwidth autopilot, the missile will need to be "sensitive" in compensating for target maneuver means highly unstable for increasing agility. Other than that tho, what's likely frequency ? afaik current AMRAAM works in Ku-band some 18 GHz. Recently there seems to be a switch or move towards higher frequency for better target resolution. Ka-band seems to be favored with some 35 GHz.This will impact the TRM numbers required to "fill" the array. Assuming a Full FOV array (120 deg of arc scan angle) a Ku-band seeker would need 195 TRM while Ka-Band 739. for AMRAAM form factor. the TRM for Ka-band would weigh roughly about 3.3 Grams, a quad brick architecture can weigh less, about 10 grams for 4 channels due to elimination of extraneous cooling wall materials and integration of the module control. 739 TRM would be about 2 Kg in total AESA antenna weight.TRM contributes to about 9%-70% of total weight of the entire AESA radar (taken from Zhuk-AE and some other example, e.g Retia's MADR concept). 9% would give seeker weight of some 27.5 Kg while optimistic 70% would give 3.5 Kg for the total weight of the radar.. which i assume applies well to active seeker. I'm curious tho if weight of AMRAAM Seeker was ever published.
I'm more curious on the seeker department. AESA seeker might means strapdown, this demand high bandwidth autopilot, the missile will need to be "sensitive" in compensating for target maneuver means highly unstable for increasing agility. Other than that tho, what's likely frequency ? afaik current AMRAAM works in Ku-band some 18 GHz. Recently there seems to be a switch or move towards higher frequency for better target resolution. Ka-band seems to be favored with some 35 GHz.
This will impact the TRM numbers required to "fill" the array. Assuming a Full FOV array (120 deg of arc scan angle) a Ku-band seeker would need 195 TRM while Ka-Band 739. for AMRAAM form factor. the TRM for Ka-band would weigh roughly about 3.3 Grams, a quad brick architecture can weigh less, about 10 grams for 4 channels due to elimination of extraneous cooling wall materials and integration of the module control. 739 TRM would be about 2 Kg in total AESA antenna weight.
TRM contributes to about 9%-70% of total weight of the entire AESA radar (taken from Zhuk-AE and some other example, e.g Retia's MADR concept). 9% would give seeker weight of some 27.5 Kg while optimistic 70% would give 3.5 Kg for the total weight of the radar.. which i assume applies well to active seeker. I'm curious tho if weight of AMRAAM Seeker was ever published.
